I-Worm.Legion

Dangerous worm Legion spreads in the Internet in e-mails with infected attachments. It distributes itself by e-mail to addresses found in the Microsoft Outlook Address Book. It also adds a directory with infected files to the share list of peer-to-peer application KaZaA. The worm removes all files of some antivirus applications and infects popular chat application mIRC forcing it to spread infected files in IRC networks. The Legion has a dangerous payload: it attempts to format the main hard disk containing all operating computer's files, software, documents, etc.