Koobface: A Facebook Virus and Its Behavior
Koobface is the most recent Facebook Virus which has annoyed many Facebook users already. The behavior of Koobface Virus infecting Facebook is best described by Kaspersky Lab as follows. Please read the description of Koobface as it may help you identify and protect your Facebook user account and PCs:
Net-Worm.Win32.Koobface.a spreads when a user accesses his/her MySpace account. The worm creates a range of commentaries to friends’ accounts. Net-Worm.Win32.Koobface.b, which targets Facebook users, creates spam messages and sends them to the infected users’ friends via the Facebook site. The messages and comments include texts such as Paris Hilton Tosses Dwarf On The Street; Examiners Caught Downloading Grades From The Internet; Hello; You must see it!!! LOL. My friend catched you on hidden cam; Is it really celebrity? Funny Moments and many others.
Messages and comments on MySpace and Facebook include links to http://youtube.[skip].pl. If the user clicks on this link, s/he is redirected to http://youtube.[skip].ru, a site which purportedly contains a video clip. If the user tries to watch it, a message appears saying that s/he needs the latest version of Flash Player in order to watch the clip. However, instead of the latest version of Flash Player, a file called codecsetup.exe is downloaded to the victim machine; this file is also a network worm. The result is that users who have come to the site via Facebook will have the MySpace worm downloaded to their machines, and vice versa.
“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”, says Alexander Gostev, Senior Virus Analyst at Kaspersky Lab. “At the beginning of 2008 we predicted that we’d see an increase in cybercriminals exploiting MySpace, Facebook and similar sites, and we’re now seeing evidence of this. I’m sure that this is simply the first step, and that virus writers will continue to target these resources with increased intensity”.
To prevent the Facebook Virus Koobface from infecting your computer or Facebook account, do not open emails from unknown Facebook entities. If suspicious emails are already in your Facebook inbox, delete them immediately. This is how Koobface behaves and infects computers and Facebook accounts.
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