• Corpus ID: 229152889

AIR-FI: Generating Covert Wi-Fi Signals from Air-Gapped Computers

@article{Guri2020AIRFIGC,
  title={AIR-FI: Generating Covert Wi-Fi Signals from Air-Gapped Computers},
  author={Mordechai Guri},
  journal={ArXiv},
  year={2020},
  volume={abs/2012.06884}
}
In this paper, we show that attackers can exfiltrate data from air-gapped computers via Wi-Fi signals. Malware in a compromised air-gapped computer can generate signals in the Wi-Fi frequency bands. The signals are generated through the memory buses - no special hardware is required. Sensitive data can be modulated and secretly exfiltrated on top of the signals. We show that nearby Wi-Fi capable devices (e.g., smartphones, laptops, IoT devices) can intercept these signals, decode them, and send… 

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