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