Sorry for your loss, but without linking to the file or to the site, are you comfortable to reveal what you were downloading and was it an official site or any known site that we should be aware of? Also did you find that from google or got link from somewhere else?
Because i don't think that you are the first or the last one downloading that.
I was actually searching for a software named "
Visual CertExam Designer". In that i found a link and downloaded a zip file that was password protected. And once i unzipped it using the given password, then i installed it and as i installed it, i got the virus notification. I then uninstalled the software and thought that everything is fine. But next day i realized that there was 13.2 gb software by the name of Acrobat reader was installed at the same time when this event took place. and i think that was the software that got it done.
That makes sense, my recommendation is that you completely wipe out your hard drive, I hope that you already have your seed words and your private keys in other devices, you should never have your wallets in the computer that you use for your everyday activities because something like this can happen to you, if you do not really have any option but to use that kind of software and download stuff online then get a hardware wallet and forget about those kind of problems.