Worm-Virus, Zacker, Maldal.exe, Mydoom, Sobig.
Worm reproduce themselves to install themselves on
other computers on a network. When a worm gets into a
network it will use it to send copies of its self as far as it
can. Bad worms may include malware that damages
computer data and files, or compromises computer
security. Worms may use an infected computer's email
programme to send copies of itself to other computers not
on the network.
Network Attacks, Slow Networks, Spamming malware (I
love you virus), Installing "Back Doors", Deleting data and
files, Installing Spyware, Installing other viruses.