OK, so I got this virus, patched the OS, installed McAfee Virus Scan AND Fire-Wall.
From my earlier post:
"Don't wish to scare you, but wpa.exe is probably a virus"
Brilliant. I turned it off as a service, wondered who put it there, and went on.
Well, this morning, as I booted my computer, apparently 'wpa.exe' tried to run again. McAfee Virus-Scan caught it this time, and cleaned the hell out of it. Deleted the file entirely. And yes, McAfee reported it's the "W32/SDBot.worm.gen.by" virus.
Now, I had already observed this thing trying to make connections out of my computer, and blocked those using McAfee Fire-Wall. It also found file "103.tmp" in my System32 directory, which ALSO wanted to connect out, and ALSO had the "Proxy-FBSR" trojan.
Wow. These tools really work well. Highly recommended.