Examples of available (or possible) IW weapons Computer Viruses Worms Trojan Horses Logic Bombs Trap Doors Chipping Nano machines and Microbes Electronic Jamming HERF Guns - EMP Bombs ------------------------------------------------------------------------ Computer Viruses "A virus is a code fragment that copies itself into a larger program, modifying that program. A virus executes only when its host program begins to run. The virus then replicates itself, infecting other programs as it reproduces." [7] Viruses are well known in every computer based environment, so that it is not astonishing that this type of rough program is used in the Information Warfare. We could imagine that the CIA (or Army, Air Force ....) inserts computer viruses into the switching networks of the enemy's phone system. As today's telephone systems are switched by computers, you can shut them down, or at least causing massive failure, with a virus as easy that you can shut down a "normal" computer. An example what the damage a virus could cause exists. We can compare it with the system crash of AT&T long distance switching system on January 15, 1990 [10]. Worms "A worm is an independent program. It reproduces by copying itself in full-blown fashion from one computer to another, usually over a network. Unlike a virus, it usually doesn't modify other programs."[7] Also if worms don't destroy data (like the Internet Worm, described in [5]), they can cause the loss of communication with only eating up resources and spreading through the networks. A worm can also easily be modified so that data deletion or worse occurs. With a "wildlife" like this, I could imagine breaking down a networked environment like a ATM and banking network. Trojan horses "A Trojan horse is a code fragment that hides inside a program and performs a disguised function. It's a popular mechanism for disguising a virus or a worm"[7] A trojan horse could be camouflaged as a security related tool for example like SATAN (Security Administrating Tool for Analyzing Networks). SATAN checks UNIX system for security holes and is freely available on the Internet. If someone edits this program so that it sends discovered security holes in an e-mail message back to him (lets also include the password file? No problem), the Cracker learns much information about vulnerable hosts and servers. A clever written trojan horse does not leave traces of its presence and because it does not cause detectable damage, it is hard to detect. Logic bombs "A bomb is a type of Trojan horse, used to release a virus, a worm or some other system attack. It's either an independent program or a piece of code that's been planted by a system developer or programmer."[7] With the overwhelming existence of US based software (e.g. MS Windows or UNIX systems), the US Government, or whomever you would like to imagine, could decide that no software would be allowed to be exported from that country without a Trojan horse. This hidden function could become active when a document with "war against the USA" exists on the computer. Its activation could also be triggered from the outside. An effect could be to format the computers harddisks or to mail the document to the CIA. Trap doors "A trap door, or a back door, is a mechanism that's built into a system by its designer. The function of a trap door is to give the designer a way to sneak back into the system, circumventing normal system protection."[7] As I mentioned in the last section, all US software could be equipped with a trap door that would allow IW agencies to explore systems and the stored data on foreign countries. This could be most useful in cases of military strategic simulations and plans and would provide the DoD's intelligence with vital information. Chipping Just as software can contain unexpected functions, it is also possible to implement similar functions in hardware. Today's chips contain millions of integrated circuits that can easily be configured by the manufacturer so that they also contain some unexpected functions. They could be built so that they fail after a certain time, blow up after they receive a signal on a specific frequency, or send radio signals that allow identification of their exact location - the number of possible scenarios exceeds, by far, the scope of this paper. The main problem with chipping is that the specific (adapted) chip be installed in the place that is useful for the Information Warrior. The easiest solution is to built the additional features into all the chips manufactured in the country that is interested in this type of IW. Nano machines and Microbes Nano machines and Microbes provide the possibility to cause serious harm to a system. Unlike viruses, we can use these to attack not the software but the hardware of a computer system. Nano machines are tiny robots (smaller than ants) that could be spread at an information center of the enemy. They crawl through the halls and offices until they find a computer. They are so small that they enter the computer through slots and shut down electronic circuits. Another way to damage the hardware is a special breed of microbes. We know that they can eat oil, what about if they were bred for eating silizium? They would destroy all integrated circuits in a computer lab, a site, a building, a town....... Electronic jamming In the old days (and even today) electronic jamming was used to block communications channels at the enemy's equipment so that they can't receive any information. The next step is not to block their traffic, but instead overwhelm them with incorrect information. This type of disinformation can also be combined with the possibilities described in the section "soft war" HERF Guns - EMP Bombs HERF stands for High Energy Radio Frequency. HERF guns are able to shoot a high power radio signal at an electronic target and put it out of function. The damage can be moderate (e.g. that a system shuts down, but can be restarted) or severe (e.g. the system hardware has been physically damaged). Electronic circuits are more vulnerable to overload that most people would suspect. This mechanism uses HERF guns with big success. In essence, HERF guns are nothing but radio transmitters. They send a concentrated radio signal to the target. The target can be a mainframe inside a business building, an entire network in a building, or as today's planes and cars are stuffed with electronic equipment, the target can even be a moving vehicle with all the inherent dangers for the people who are inside. EMP stands for electromagnetic pulse. The source can be a nuclear or a non-nuclear detonation. It can be used by special forces teams who infiltrate the enemy's and detonate a device near their electronic devices. It destroys the electronics of all computer and communication systems in a quite large area. The EMP bomb can be smaller than a HERF gun to cause a similar amount of damage and is typically used to damage not a single target (not aiming in one direction) but to damage all equipment near the bomb.