VB.CSK (or OMG! Virus!)

I was offline most of last night and today fixing and cleaning my computer. While I was in class, I let my D drive defragment. Yesterday, I updated my virus definitions and boom, a virus appeared. The infected files were some dodgy items, like keygens and software cracks, but wow, I've had those files for over a year without any anti-virus utility finding them. They were definitely viruses, though; not falsely identified infections.

The free version of AVG anti-virus is what caught the viruses, so you may want to get the program for yourself if you're putting a lot of software on your computer from untrustworthy sources. Still, I don't try the commercial products. They may work more efficiently.