Why not make it open source because you said already that the base is anyway from xmr-stack. Would also avoid bad voices because of viruses. Just my two cents
I will think about that, maybe i do it...
You should do it because once you release the source to the public other programmers can verify it and remove our doubts because anything run with the Run as Administrator command has full power over the system.To clear everyone doubts you should release the code to the public.Until you do that no one will take you seriously and no one will risk a download except people who use virtual environments for testing.