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