Mtrnqs.exe is a mass-mailing worm W32.Mytob.IG@mm. Mtrnqs.exe opens a back door on TCP port 6667. Mtrnqs.exe tries to terminate antiviral programs installed on a user computer. Related files: %System%\mtrnqs.exe Adds the value: "WINDOWS SYSTEM" = "mtrnqs.exe" to the Windows startup registry keys. More info: http://securityresponse.symantec.com/avc... Removal: Kill mtrnqs.exe process and remove mtrnqs.exe from Windows startup using antivirus (also check How To Remove section)Startup Optimizer.