Friday August 12, 2016

Data Exfiltration from Air-Gapped Computers Using HDD Sounds

If I am reading this right, malware installed on an air-gapped computer uses the actuator arm in the hard drive to send acoustic signals to a smartphone that acts as a receiver. While this seems kinda neat and all, how are they getting the malware onto the air-gapped computer in the first place? What about ambient noise interfering with recording the hard drive sounds?