https://bugs.winehq.org/show_bug.cgi?id=47627
--- Comment #5 from jebeld17@gmail.com --- (In reply to Nikolay Sivov from comment #4)
It's not limited to wine prefix, it could infect anything your user has access to. Also wine prefix is only a directory, like any other directory in your system that scanner would check.
I don't believe I've ever heard of a piece of Windows malware that can attack a [theoretical] UNIX host that may or may not exist.