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