clmss.exe is a Trojan W32.Spybot-EL. clmss.exe opens a back door on IRC channels. clmss.exe spreads via open network shares. Related files: %System%\clmss.exe %System%\keylog.txt More info: http://www.sophos.com/virusinfo/analyses... Removal: Kill clmss.exe process and remove clmss.exe from Windows startup using antivirus (also check How To Remove section)Startup Optimizer.