cartao.exe is a Trojan.Banload-DJ. cartao.exe downloads code from the internet. Related files: %System%\cartao.exe %System%\csrs.scr More info: http://www.sophos.com/virusinfo/analyses... Removal: Kill cartao.exe process and remove cartao.exe from Windows startup using antivirus (also check How To Remove section)Startup Optimizer.