THE ART OF COMPUTER VIRUS RESEARCH AND DEFENSE [Electronic resources]

3.13. Network Protocol Dependency

Nowadays, the Internet is the largest target of virus attacks. TCP and UDP protocols are used by malicious mobile code⁴⁸ to attack new targets. There are some old worms, however, such as the Father Christmas worm, that could not spread on the Internet because they relied on DECNET protocolsthus, computer worms are typically network protocoldependent.