The video gained significant traction as a "scary video you shouldn't watch at night" trend.
: Heavy use of distorted audio, high-pitched frequencies, or "EAS" (Emergency Alert System) tones to create a sense of dread.
Are you looking to write a of how these videos are made, or do you want a more narrative-style creepypasta post?
: Often features low-quality, grainy CCTV or handheld camera footage. It typically depicts a person (presumably "Ana") in a domestic or liminal space (like a hallway or basement) acting erratically or being stalked by an unseen entity.