In an article posted today by Mohit Kumar of the Hacker News
, a proof of concept was reported that proves the technology exists for malware to actually communicate between non-connected systems via inaudible signals sent from one system and received by the other.
The PoC, written by German Researchers Michael Hanspach and Michael Goetz, was originally published in the Journal of Communications
This concept has most recently been brought into the light due to the controversy behind “BadBIOS”
, a highly advanced and dangerous malware, currently only encountered by one highly regarded researcher.
In the paper, the researchers describe using a system’s built-in sound card and microphone to transmit information from one end (the client or application installed on the target system) to the other (the server), if both systems are infected and are within 60 ft. of each other.