Watch out when you are looking for FREE anti-virus software. If you get something like Win 7 Total Security 2011 then good luck to you.
Somehow I found a link to clean it but I never tried because I wasn’t the one who fell into the trap. Try this http://www.precisesecurity.com/rogue/win-7-total-security-2011/.
If you want a free anti-virus software then I would suggest this to you Microsoft Security Essential (http://www.microsoft.com/en-us/security_essentials/default.aspx). I have been using it for more than a year now and touch wood my machine still surviving.