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