I-Worm.Moncher

Worm Moncher is an Internet worm, that spreads by e-mail in messages with attached infected executables or archives and through IRC channels. For spreading
by e-mail it uses Microsoft Outlook mail client and obtains addresses in the Address Book. It infects mIRC chat application and uses it to send copies of the worm
to other IRC users. Once per year the worm modifies computer files and formats the main hard disk.