automatic updates trojan

I was downloading something for a game and I ran the .exe file. It failed saying something about Vista Service Update 1, but then the automatic updates alert appeared on my taskbar.

I clicked it and it said that 'windows recommends me to keep the automatic update thing on blah blah' so when I click that then it says 'you must do this manually' and when I try to do it manually I found out that my automatic updates are on afterall. Afterwards I was reading the comments about the download and I found warnings that said it had a trojan in it. I tried to delete the .rar file that contained the .exe file and it wouldn't let me because it was in use. Eventually I managed to delete it I think, but the problem remains, probably because the trojan has moved itself elsewhere.

I'm using Trend Micro PC-cillin (came with my PC) and I scanned and found nothing. Currently I'm downloading Avast! to see if it can succeed where Trend has failed. Is anyone familiar with this type of virus? If so, how can I go about removing it, or at least stop it from being a problem?

 

The name of the .exe file was setup.exe I believe. The name of the .rar directory it was in was called "SPORE Creature Creator multi-lang crack.rar".

And yes, I was reading your guide to removing malware and did not end up downloading avast.

 

The rar file was located in the downloads folder of My Documents.

By the way, I was checking the recent comments on the torrent and discovered this:

InkDragon at 2008-06-18 23:42 CET:
This contains backdoor.rbot.as & sheur.bnru, use AVG to remove them.

 

I've also been doing a little research and I have high suspicions that these trojans are in C:\Recycler. Is there a way I can delete them from here?