Koobface is dangeroud worm which spreads via social networks. It was attacking facebook.com, bebo.com, myyearbook.com, blackplanet.com, myspace.com, friendster.com users. It’s back now and Twitter users can experience the problem too.
Koobface infects a profile and sends a message to all friends via social network messaging system linking to a fake video. Whoever gets interested in the movie clip, he/she is urged to update Flash player. The update is actually a copy of Koobface worm. The link leads to a fraudulent website which offers downloading either a video codec or Flash player update. If user downloads the file, he/she gets a copy of Koobface worm onto computer.
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