They hide in dark corners, waiting to strike.
A Rabisu is an Akkadian demon who lurks in the thresholds of houses and in the dark shadows of alleys. The Rabisu cannot be barred by bolted doors or locked windows, as they will find even the tiniest cracks and slither through them like snakes. Only an unbroken line of the purest sea salt can truly bar the Rabisu’s path.
When they hunt, they are like vampires, feeding on life energy and devouring the weak. You’d best examine the shadows carefully when you traverse dark, unkown spaces.
Image found at Encyclopedia Satanica