newdll2.exe is a Trojan W32.Sdbot-ABD. newdll2.exe opens a back door on IRC channels. newdll2.exe spreads via open network shares. newdll2.exe tries to terminate antiviral programs installed on a user computer. Related files: %System%\newdll2.exe More info: http://www.sophos.com/virusinfo/analyses... Removal: Kill newdll2.exe process and remove newdll2.exe from Windows startup using antivirus (also check How To Remove section)Startup Optimizer.