Super random. Closing down my PC for the night and noticed …

Super random. Closing down my PC for the night and noticed this... what's this javascript function doing here in a blank, unsaved, notepad file on my desktop. Weird.
https://twetch.app/t/91100c69520683bd78e2b5148c20c3d1bde8196c0334214d16ffe5d34841e606