Infection
If the reader clicks on the supplied link, they are directed to another Web site to supposedly watch the clip. After clicking to visit the site, users are shown a message that tells them they need an updated Adobe Systems Flash player. But downloading the software infects the victim’s computer with the virus. Koobface uses the social network’s messaging system to infect PCs, then tries to gather sensitive information such as credit-card numbers or their searches on Google, Yahoo and MSN diverted to fraudulent Web sites.
Removal
Facebook has posted limited instructions on removing the virus on its security page. It suggests resetting your password and running updated anti-virus software to purge the worm from your system. I would advice Facebook users to never opens unexpected e-mail attachments or to click on suspicious links, even if they come from people you trust.
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