I was hit by "Win7 Internet Security 2012" as well. The only way to remove it, was to do a system restore. Two days later, it came back. I updated and ran Malwarebytes, SuperAntiSpyware and Microsoft Security Essentials. It was fine up until this morning. It came back once again. I have no clue what I'm doing wrong. Had to do a system restore, one too many times. I was sent here by PC World, in hopes that someone can help me.