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Facebook fights new Koobface worm, another rogue app | Security - CNET News
The popular social-networking site has been hit by what's believed to be the fourth rogue app in a week or so and is investigating the spread of a new variant of the Koobface worm, according to security firm Trend Micro.
The Koobface worm spreads via a message from a Facebook friend that includes a link to what looks like a video, Rik Ferguson wrote on the Trend Micro blog.