I have downloaded a virus but do not know what it is

Hello, I have downloaded a virus about a month and a half ago and I do not know where I can find it or what the name of it is to be exact.
This is the information that I do know, that I had most likely downloaded it along with another file that I used with Counter-Strike: Source by the name of Holzed. I downloaded this file(which through various comments posted past the time I had downloaded it which told me that a virus was within the file) from the website www.fkn0wned.com.
So far the symptoms of this virus is whenever I attempt to play the game, Counter-Strike: Source, my internet fails soon after I try to connect to a server, and then my internet fails on me entirely sometimes, including my browser or other internet related programs. I need help with locating and resolving this virus and if any one could possibly help me out it would be greatly appreciated. Thank you.

 

lets see if anything shows up in a hjt log:

http://www.trendsecure.com/portal/en-US/threat_analytics/HJTInstall.exe

* Save HJTInstall.exe to your desktop.
* Doubleclick on the HJTInstall.exe icon on your desktop.
* By default it will install to C:\Program Files\Trend Micro\HijackThis .
* Click on Install.
* It will create a HijackThis icon on the desktop.
* Once installed, it will launch Hijackthis.
* Click on the Do a system scan and save a logfile button. It will scan and the log should open in notepad.
* Click on "Edit > Select All" then click on "Edit > Copy" and Paste the entire contents of the log in your next reply.