Worm

The Worm is a creature from ObsCure that can be found during the multiples boss fights with the Queen, coming out of her insides as part of one of her attacks, swarming the survivors' legs, and as a jumpscare in the library's bathroom.

They can be killed with a flashlight.

Trivia

 * The worms seemed to have a bigger role in early prototypes of the game, possibly being a common enemy like the Biters. They were much bigger and had a green color. They can be seen a few times in the prototype video included with the Steam version of the game.