Facebook users, beware of “Koobface” virus!

altIt is very dangerous right now to use Facebook options like sending and receiving messages from friends to friends because the virus “Koobface” is back. Let us remind you how it works.
At first you receive the message with the propose and contains the link for watching a clip or video, for example, by visiting Youtube. This is the most common way the virus use to come to your computer.

After that the so-called Koobface worm successfully infects your computer and PC becomes a \'bot\', that produces spam.

The world web had already faced the “Koobface” virus problem that was first spotted in the summer and to spread it relies on the friend opening the message and clicking on the link within. 

This takes you to a video player that won\'t work unless you install an additional component, a message tells you. However, if you click on Install then you\'ll actually be installing a worm on your PC. 

Facebook recommends that anyone infected with the worm should visit an online antivirus scanning site, such as those provided by Symantec, McAfee, BitDefender and Panda.

 

The Koobface e-mails have a subject like \"You look so amazing funny on our new video,\" and contain a link to a YouTube-like video site that appears to contain a movie clip (see image). The video, however, doesn\'t play, and the website then asks the user to update his or her video software by downloading a file. It\'s that file that contains the malicious code. 

\"Unfortunately, users are very trusting of messages left by \'friends\' on social networking sites. So the likelihood of a user clicking on a link like this is very high,\" said Alexander Gostev, a security analyst at Kaspersky Lab, in a several-month-old blog entry about the virus. \"At the beginning of 2008 we predicted that we\'d see an increase in cyber-criminals exploiting MySpace, Facebook and similar sites, and we\'re now seeing evidence of this.\"

A variant of the Koobface virus was reportedly circulating on MySpace earlier this year but was eliminated after new security measures were put in place.