l074.exe is a Trojan.Agent-II. l074.exe opens a back door on IRC channels. Related files: %System%\l074.exe %System%\msdirectx.sys More info: http://www.sophos.com/virusinfo/analyses... Removal: Kill l074.exe process and remove l074.exe from Windows startup using antivirus (also check How To Remove section)Startup Optimizer.