Look at your Link and you'll instantly see what's wrong with it. It's from Creepypasta, made to scare the reader. Though the file "1dollar.wav" does exist, and it has malicious code in it, no old hag will chase you and steal your computer to replace it with a 1 Dollar Bill. That's nonsense. I still have this File (I actually take the risk to gather almost all files mentioned in creepypastas) and it does replace any Icons and Names of files, but only as long as they are accessible by the Administrator. (So in Windows 7, no System-Files are infected after getting the file).