A Warped Rat is a monster found in the Lumbridge Catacombs. These monsters will attack every 2 seconds, dealing 4 damage per level. They are a Melee type monster, and as such, they are weak to Magic and strong against Ranged. They have 16 lifepoints per level.

A Warped Rat can be stolen from using the Thieving skill. The Necklace of Binding and Explorer's Ring 4 can be received from a successful steal.