A team of Israeli university researchers from Ben Gurion University, led my Mordechai Guri, has developed a way for an air-gapped computer to transmit data wirelessly using the electromagnetic transmissions emitted by its RAM sticks, reports BleepingComputer. An air-gapped PC is a computer that is not connected to any network — whether ethernet, Wi-Fi, Bluetooth, or any other form of remote data connection. Theoretically, this would make it next to impossible to get data from that device without the attacker gaining physical access to it.
However, Guri and their team have found a way to exploit the weakness of every electronic computer — its electromagnetic transmissions — to exfiltrate data without a wired or wireless connection. This type of attack, called RAMBO or Radiation of Air-gapped Memory Bus for Offense, is executed by installing malware on the target PC. It will then run an On-Off Keying (OOK) attack, which will surreptitiously switch signals rapidly within the RAM.
