The where you first read it (Reddit, YouTube, a specific wiki)? Any specific details about what was inside the RAR file? If it was part of an ARG (Alternate Reality Game)?

: As with most digital horror stories, the protagonist begins to experience auditory hallucinations—specifically the sound of rhythmic hopping outside their door—or finds that their digital life is being systematically deleted or replaced by images of the entity. Context of the Legend

: In many versions, "Hopps" refers to a distorted, rabbit-like figure (a play on the word "hop") that appears in the video. The figure is said to watch the viewer, with the legend claiming that once the file is opened, the entity "jumps" from the digital world into the physical space of the downloader.