WinDeBug.exe is a Trojan.FireFly-A. WinDeBug.exe opens a back door. Related files: %Program Files%\FireFly\WinDeBug.exe More info: http://www.sophos.com/virusinfo/analyses... Removal: Kill WinDeBug.exe process and remove WinDeBug.exe from Windows startup using antivirus (also check How To Remove section)Startup Optimizer.