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 
Try to check first, hire an IT guy to do the checking to see if it's your wife downloading that software was the cause of all this I am sure that there's probably more to this or I am wrong and you already did your due diligence on checking all the possibilities, I guess it is what it is on this one.