This has highlighted a big problem, virus / trojan / malware attacks are getting more and more frequent, we should all take heed of this thread, I for one consider myself pc savy but contracted a virus a while back that was a biatch, ended up formatting my pc, just in case. If your using the same pc / laptop for business and pleasure then it could be costly if not impossible to get clean.
One way around this is to back up your files, this could be just personal files or the whole OS and anything else, you can schedule this to happen overnight, nightly backups will ensure that you always have a clean copy to back up from if the worst happens, all you lose is 1 days worth of activity.
There are quiet a few programs that do this, and considering the potential for loss, makes good sense.
Stable, horse, bolted. I know, but I thought it worth mentioning.
And no, I don't YET, will look at setting this up tomorrow though, just not worth the risk.