The given name "Winbach" is derived from "WinBatch"

Server:
dropped file:
c:\WINDOWS\SYSTEM\SysLog.exe     size: 549.165 bytes 
c:\%local dir%\pdh.dll 
c:\%local dir%\WBDCC34I.DLL 
c:\%local dir%\wwwsk34i.dll 
c:\WINDOWS\SYSTEM\SysLog.exe 

port: 4251 TCP

startup:
HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run "SystemLog" 

added to registry:
HKEY_LOCAL_MACHINE\Software\Wilson WindowWare\Settings