dllvnet.dll is a Trojan.Brogger-B. dllvnet.dll monitors user Internet activity and bank information. It sends stolen data to a hacker site. Related files: %System%\3124564789154 %System%\dllvnet.dll %System%\drvnetw.dll %System%\drvnetw.exe %System%\nasario.sdf More info: http://www.sophos.com/virusinfo/analyses... Removal: Remove dllvnet.dll Windows startup using antivirus (also check How To Remove section)Startup Optimizer.