Sd4hideexe

The tool is quite old. Because it is often hosted on "abandonware" or gray-market sites, modern downloads of the file may be bundled with actual malware.

In the C:\Windows\Temp folder—a location normally filled with harmless junk—sat a single file with a strange name: . sd4hideexe

Avoiding the "disc swapping" dance by using ISO images of games they legally owned. The tool is quite old