This specific story is a great example of . It plays on the "uncanny valley" effect—taking something universally seen as innocent (kittens) and associating it with something hidden and or dangerous.
The story usually follows a familiar "lost media" or "deep web" trope:
The phrase is a notorious internet creepypasta and "lost media" legend. While it sounds like a cute animal video, it is actually a fictional horror story about a supposedly cursed or disturbing file. Summary of the Legend
: It originated in online horror communities (like 4chan’s /x/ board or r/nosleep) as a creative writing exercise.
: Similar to The Ring , the legend claims the video is haunted or was created as a psychological experiment that "infects" the viewer's computer or mind. Is it real? No, it is entirely fictional .
: Instead of kittens, the video reportedly contains surreal, high-pitched audio and grainy footage that supposedly causes psychological distress or physical illness in those who watch it.