msbnk.dll is a Trojan.Bankhof-B. msbnk.dll monitors user Internet activity and private information. It sends stolen data to a hacker site. Related files: %System%\msbnk.dll %System%\rdrlib.dll More info: http://www.sophos.com/virusinfo/analyses... Removal: Remove msbnk.dll from Windows startup using antivirus (also check How To Remove section)Startup Optimizer.