Malwares were rumored to be the prototypes of Zendroids, exhibiting striking resemblances to each other. They're a bit bigger than typical Zendroids, sporting longer pointy ears, a long tail, sharp hands, two digitigrade legs, and a pair of antennae.

Unlike standard Zendroids, their health bar is positioned on their left arm instead of their chest. Their signals come from the space between their forearm and palm.