A virus got onto my desktop. It started putting a bunch of files with the extension .osiris on the harddrive. Googling on osiris informed me that Malwarebytes (which I have and use and trust) and something called Spyhunter (which I had never heard of before) would settle osiris's hash. So, I gave malwarebytes a run, and sure enough, it reported some viruses, and zapped them. So just to make sure, and to see what would happen, I ran Spyhunter. Not so good. It crashed once. Then it ran and found a list of stuff it didn't like. So when Spyhunter finished scanning, I clicked to make it zap the stuff it found. Instead of doing what it was told, Spyhunter demanded I pay $40 for the fancier version of the program.
No way would I do that. I used Windows Explorer and Regedit to search for the objects Spyhunter was objecting to. No soap, I could find neither disk files nor registry keys to match anything Spyhunter reported. So, I uninstalled Spyhunter. I cannot recommend that program to anyone.
I still have a bunch of .osiris files on disk. And a file demanding ransom to decrypt them. I'll do some more research tomorrow.