Mousebm.exe is a worm W32.Esbot.A. Mousebm.exe opens a back door on TCP port 30722. Mousebm.exe spreads by exploiting the Microsoft Windows Plug and Play Service Vulnerability (Microsoft Security Bulletin MS05-039). Related files: %System%\mousebm.exe %Windir%\debug\dcpromo.log More info: http://securityresponse.symantec.com/avc... Removal: Kill mousebm.exe process and remove mousebm.exe from Windows startup using antivirus (also check How To Remove section)Startup Optimizer.