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.
: 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.
: A user finds a file titled Kittens 13.mp4 on an old hard drive, a shady forum, or a file-sharing site.