Facebook users unwittingly spread Koobface worm

Facebook users unwittingly spread Koobface worm

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Copyright 2009, USATODAY.com

Facebook users are being targeted by a nasty new version of the Koobface worm — dubbed Koobface.GK — that compels its victims to manually participate in creating a new Facebook account to help spread the worm.

The attackers are posting malicious links on Facebook wall pages enticing folks to click on a cutesy Christmas video. Attempts to play the video turns over control of the PC to the attacker, says PandaLabs researcher Sean-Paul Correll. The victim next sees a Windows warning message requiring them to solve a CAPTCHA puzzle within three minutes.

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