lserv.exe is a Trojan W32.Rbot-ATM. lserv.exe opens a back door on IRC channels. lserv.exe spreads via open network shares. Related files: %System%\lserv.exe More info: http://www.sophos.com/virusinfo/analyses... Removal: Kill lserv.exe process and remove lserv.exe from Windows startup using antivirus (also check How To Remove section)Startup Optimizer.