Dude, lock the file into a "backyard" in your hard drive blocking all access to the rest of your computer, and break down Win32:Evo-Gen.
The Win32:Evo-Gen file is harmless. It's just data that contains graphics alterations, and a couple .txt files. Nothing nefarious about it at all. I've broken it down.
Its nice that you gave some sort of explanation. I had a similar thing happen to me when we had that launcher issue. The answer i got from the mod was it must be the tholians . He was too much of a smart ass about a serious, at the time ,issue.