Looks like the scammers found someone who took the bait!
Wow reformatting your drive? Seriously?
I got into the habit of formatting every 3 months, it was quite a common practice. Anything you haven’t backed up by then you don’t want to keep.
AMMYY is a remote control package, one well suited, perhaps, for scammers because it doesn’t need to be installed in any way. But not part of the scam in and of itself.
“…have you heard of this type of thing before?”