MSGUPDATED.EXE is a Trojan W32.Rbot-APZ. MSGUPDATED.EXE opens a back door on IRC channels. MSGUPDATED.EXE spreads via open network shares. MSGUPDATED.EXE tries to terminate antiviral programs installed on a user computer. Related files: %System%\MSGUPDATED.EXE. More info: http://www.sophos.com/virusinfo/analyses... Removal: Kill MSGUPDATED.EXE process and remove MSGUPDATED.EXE from Windows startup using antivirus (also check How To Remove section)Startup Optimizer.