While there is no single famous urban legend specifically titled "," the concept of finding a mysterious compressed file on a discarded USB drive is a major trope in internet horror and "creepypasta" culture.
The "interesting story" usually follows a predictable but chilling pattern found in communities like r/nosleep or narrated by creators like MrCreepyPasta . Common Themes in "USB Discovery" Stories
Authors use the .rar (Roshal Archive) format in stories because it adds a layer of suspense: