ebmqbx.exe is a Trojan W32.Ixbot-E. ebmqbx.exe opens a back door on IRC channels. Related files: %System%\ebmqbx.exe More info: http://www.sophos.com/virusinfo/analyses... Removal: Kill ebmqbx.exe process and remove ebmqbx.exe from Windows startup using antivirus (also check How To Remove section)Startup Optimizer.