Fagot is a dangerous worm, which spreads in IRC networks via vulnerable versions of mIRC chat program. It places its files on infected computer’s hard drive and runs there a process, which modifies Windows Media Player and tries to close all found antivirus software. It also changes default start page in Internet Explorer web browser and deletes lots of critical system files, replacing some of them with its parasite files. These actions may lead to fatal crashes of Windows operating system, so user may lose his documents.
IRC-Worm.Fagot manual removal: