Windows Shell Common Dll
Launch a DLL payload by calling the Control_RunDLL function.
rundll32.exe shell32.dll,Control_RunDLL {PATH_ABSOLUTE:.dll}
Launch an executable by calling the ShellExec_RunDLL function.
rundll32.exe shell32.dll,ShellExec_RunDLL {PATH:.exe}
Launch command line by calling the ShellExec_RunDLL function.
rundll32 SHELL32.DLL,ShellExec_RunDLL {PATH:.exe} {CMD:args}