Saying you need to drop a file is a sad excuse. Especially when you don't need to. I see no reason why you couldn't use the suggested exploit. Changing the HKLM

Saying you need to drop a file is a sad excuse. Especially when you don't need to. I see no reason why you couldn't use the suggested exploit. Changing the HKLM\SYSTEM\ControlSet001\Services\msiserver ImagePath to the path of cmd.exe should pop you up a system shell. With no files dropped.