Well there is this one, it seems to be free:
http://forums.majorgeeks.com/showthread.php?t=74265
I also found this write up about it:
Unfortunately, it is very difficult to erase SmitFraud malware. This family is one of the most virulent, copying itself hundreds of times and attaching bugs to your start-up and registry files. Because it is associated with the computer booting up, and attaches itself and its copies to your RAM, SmitFraud malware doesn’t show up in regular virus scans. Really the best way to rid yourself of SmitFraud is to avoid being infected with it in the first place.
If your computer has been infected, and you aren’t a fairly savvy user, it’s best to take it in to a professional so they can clean out the infected RAM and registry files. If you do know what you’re doing, you can boot your computer into Linux (a free operating system available online) or DOS. From there, you will be able to see the infected files and remove SmitFraud by hand.
Not good news, possibly easier to save your pics, favourites,music etc and e-mails and do a format and reinstall windows, only takes an hour or so if you have the windows disc or a recovery disc if its one of the big shop PC's.
Hope this helps m8
