i found this,, Net-Worm.Win32.Koobface!IK on my lap top last night while doing my regular scan,
my mcfee antivirus did not pick it up , i use emsisoft anti malware scanner manualy as an extra scanner it was this that found it,
i looked it up via google, it is said to be a social site virus or worm,
targeting MySpace and Facebook ,
here is a link that tells you about it,http://www.kaspersky.com/news?id=207575670
so if your a facebook user maybe an idea to scan your computer with something other than your regular antivirus