Dioxin.exe is a worm W32.Attech-D. Dioxin.exe downloads code from the internet. Dioxin.exe modifies data on the computer. Related files: %System%\Dioxin.exe %System%\WinDio778.exe More info: http://www.sophos.com/virusinfo/analyses... Removal: Kill Dioxin.exe process and remove Dioxin.exe from Windows startup using antivirus (also check How To Remove section)Startup Optimizer.