Ben Nassi, Adi Shamir, Yuval Elovici
arXiv preprint arXiv:1703.07751, 2017
This article presents a proof-of-concept illustrating the feasibility of creating a covert channel between a C&C server and a malware installed in an organization by exploiting an organization’s scanner and using it as a means of interaction. We take advantage of the light sensitivity of a flatbed scanner, using a light source to infiltrate data to an organization. We present an implementation of the method for different purposes (even to trigger a ransomware attack) in various experimental setups using: (1) a laser connected to a stand (2) a laser carried by a drone, and (3) a hijacked smart bulb within the targeted organization from a passing car. In our experiments we were able to infiltrate data using different types of light sources (including infrared light), from a distance of up to 900 meters away from the scanner. We discuss potential counter measures to prevent the attack.