you could try a system restore to a date before it happened. Then run your antivirus.
Had a similar problem with a lad at works laptop. I was convinced that the message popping up was saying it was the wrong virus so you would do the wrong thing to remove it.
Only believe your own virus checker if it says the virus name otherwise its the virus tricking you.
I used this bootable antivirus cd to remove it from his
Avira AntiVir Rescue System