Visible to the public LANTENNA: Exfiltrating Data from Air-Gapped Networks via Ethernet Cables Emission

TitleLANTENNA: Exfiltrating Data from Air-Gapped Networks via Ethernet Cables Emission
Publication TypeConference Paper
Year of Publication2021
AuthorsGuri, Mordechai
Conference Name2021 IEEE 45th Annual Computers, Software, and Applications Conference (COMPSAC)
Date PublishedJuly 2021
PublisherIEEE
ISBN Number978-1-6654-2463-9
KeywordsAir gaps, air-gap, Communication cables, composability, Computers, covert channels, data leakage, electromagnetic, Ethernet, exfiltration, Human Behavior, LAN, Malware, Meters, Metrics, Portable computers, pubcrawl, resilience, Resiliency, Virtual machining
AbstractIn this paper we present LANTENNA - a new type of an electromagnetic attack allowing adversaries to leak sensitive data from isolated, air-gapped networks. Malicious code in air-gapped computers gathers sensitive data and then encodes it over radio waves emanated from Ethernet cables. A nearby receiving device can intercept the signals wirelessly, decodes the data and sends it to the attacker. We discuss the exiltration techniques, examine the covert channel characteristics, and provide implementation details. Notably, the malicious code can run in an ordinary user mode process, and can successfully operates from within a virtual machine. We evaluate the covert channel in different scenarios and present a set of of countermeasures. Our experiments show that with the LANTENNA attack, data can be exfiltrated from air-gapped computers to a distance of several meters away.
URLhttps://ieeexplore.ieee.org/document/9529607
DOI10.1109/COMPSAC51774.2021.00106
Citation Keyguri_lantenna_2021