There is a bit of press about a virus-worm called "Conficker". This is actually an old worm that started infecting systems late last year by exploiting a vulnerability in Microsoft Windows. Since then there have been variants of this worm and lots of programs carry this malicious payload. Conficker.C is the latest variant; it will change the behavior of its “call-home protocol” tomorrow Wednesday, April 1st. Conficker may use this protocol to update itself to include some as-yet unknown functionality. Microsoft has also issued a security update to patch the vulnerability that the Conficker family has used to propagate.
You may want to check that your PC has the latest Microsoft security updates installed. You can do this by running Windows Update on your computer. This is a worm and it does not need you to open email or attachments or anything, and it can hit your computer if it is vulnerable. So it is very important that you have this patch.
The following information will give you an overview of the worm, the steps one can take to clean an infected system, and measures to prevent reinfection.
http://www.mcafee.com/us/threat_center/conficker.html
http://www.symantec.com/norton/theme.jsp?themeid=conficker_worm&inid=us_ghp_link_conficker_worm
A quick way to see if you have the worm. Try and go to http://www.mcafee.com. If you cannot access Mcafee, you may have the worm, as it blocks access to security vendors.
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