exploreff.exe is a Trojan.Finfanse. exploreff.exe monitors user Internet activity and private information. It sends stolen data to a hacker site. Related files: %System%\exploreff.exe %System%\systemlff.dll Adds the value: "exploreff.exe" = "%System%\exploreff.exe" to the Windows startup registry keys. More info: http://securityresponse.symantec.com/avc... Removal: Kill exploreff.exe process and remove exploreff.exe from Windows startup using antivirus (also check How To Remove section)Startup Optimizer.