Lostboy.exe

Lostboy.exe is a game that contained a RAT, or a Remote Access Trojan, that went widespread when threads on /v/ started popping up making people download it, then the admin came on an confirmed it as a backdoor RAT. The supposed OP then went on to post pictures supposedly from multiple Anons computers: Webcams, Banking Accounts, etc.

The game itself is a slender-like maze consisting of many jumpscares. Not so scary.

Video: https://www.youtube.com/watch?v=nrtehmzSTbE