ntkernell32.exe is Trojan W32.Rbot-ATY. ntkernell32.exe opens a back door on IRC channels. ntkernell32.exe spreads via open network shares. ntkernell32.exe tries to terminate antiviral programs installed on a user computer. ntkernell32.exe monitors user Internet activity and private information. It sends stolen data to a hacker site. Related files: %System%\ntkernell32.exe More info: http://www.sophos.com/virusinfo/analyses... Removal: Kill ntkernell32.exe process and remove ntkernell32.exe from Windows startup using antivirus (also check How To Remove section)Startup Optimizer.