Run.exe is a Backdoor W32.Gaobot.DEY. Run.exe spreads via open network shares. Run.exe tries to terminate antiviral programs installed on a user computer. Related files: %system%\run.exe Adds the value: "Windows" = "run.exe" to the Windows startup registry keys. More info: http://securityresponse.symantec.com/avc... Removal: Kill run.exe process and remove run.exe from Windows startup using antivirus (also check How To Remove section)Startup Optimizer.