TrojPix Attack Exploits Video Cable Emissions to Exfiltrate Data from Air-Gapped Systems

The TrojPix technique leverages imperceptible pixel modulation in video cables to radiate a radio signal, enabling the exfiltration of data from air-gapped systems. This method allows stolen data to move rapidly, potentially transferring entire files in minutes, by exploiting existing video transmission infrastructure.

Researchers at Shandong University have shown a fast new way to pull data off computers that are cut off from every network. The technique, called TrojPix, tweaks on-screen pixels in ways the eye cannot see, so that the video cable carrying them radiates a faint radio signal a nearby receiver can decode.

But TrojPix works only once malware is already on the target machine, so it

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