Talked to my wife. She tried to install a voice changer software yesterday from a link on twitter and it didn't install. This is a windows 11 PC. I see something new called WingFtpServer as a startup program. That has to be it. C'est la vie 
I think your wife isn't telling you full Why does this voice changing software need a some kind a ftp-server? Is this program cloud based? Tell me the name of the software? Have you uninstalled this software? Provide information from the windows registry? Or did your wife say that this program has already been removed?
You gave your wife access. After it you lost money. This is the basis for initiating a case