ad-aware problems

hi im new so if im posting in the wrong place im sorry

anyway my problem is a couple days ago when i had ad-aware AE free edition i ran a scan for regular maintenance and it detected a

WIN32 TrojanPWS.OnlineGames

Trojan the problem is when i went to perform the recommended actions the program would freeze and if i clicked anywhere else on my desktop it would crash my system causing it to freeze also forcing me to hit the reset button

i also have malwarebytes,spybot-SD,spyware terminator i just recently got um i use avast pro for anti virus and zone alarm for firewall

i made sure all programs were updated and ran full system scans and there not detecting this Trojan so im not sure what to do im not even sure how long the this trojan has bin on my computer i mean i havent noticed any problems with my computer everything runs and opens fine and my game accounts havent bin hacked yet and i havent noticed any slow downs either so im really clueless

any help would be apreciated thanks