A standalone malicious program which uses computer or network resources to make complete copies of itself. May include code or other malware to damage both the system and the network.
Worm:W32/Korgo (aka Padobot) is a family of network worms written by the Russian Hangup Team virus group. It spreads throughout the Internet using a vulnerability in Microsoft Windows LSASS.
A description of the vulnerability can be found in Microsoft Security Bulletin MS04-011.