New Malware Jumps Air-Gapped Devices by Turning Power-Supplies into Speakers

guest · May 4, 2020

New Malware Jumps Air-Gapped Devices by Turning Power-Supplies into Speakers
May 4, 2020
https://thehackernews.com/2020/05/air-gap-malware-power-speaker.html

A researcher from Israel's Ben Gurion University of the Negev recently demonstrated a new kind of malware that could be used to covertly steal highly sensitive data from air-gapped and audio-gapped systems using a novel acoustic quirk in power supply units that come with modern computing devices.

Dubbed 'POWER-SUPPLaY,' the latest research builds on a series of techniques leveraging electromagnetic, acoustic, thermal, optical covert channels, and even power cables to exfiltrate data from non-networked computers.

"Our developed malware can exploit the computer power supply unit (PSU) to play sounds and use it as an out-of-band, secondary speaker with limited capabilities," Dr. Mordechai Guri outlined in a paper published today and shared with The Hacker News.
"We show that our technique works with various types of systems: PC workstations and servers, as well as embedded systems and IoT devices that have no audio hardware. Binary data can be modulated and transmitted out via the acoustic signals."
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arXiv: POWER-SUPPLaY: Leaking Data from Air-Gapped Systems by Turning the Power-Supplies Into Speakers

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New Malware Jumps Air-Gapped Devices by Turning Power-Supplies into Speakers

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