Remote Access Trojan - malware which, usually as software, needs to make its way to the victim computer.
Hypothesis: the people responsible for the electronic harassment of "targeted individuals" use a variant of RAT done in hardware with its own radio and working even without Internet, inserted during processor design, making harder to uncover it, but it can be done.
Consider:
"It's not technically hard to make a device that complies with the FCC that listens to nonpublic bands but then is quietly waiting for some activation trigger to listen to other bands," said Eduardo Rojas, who leads the radio spectrum lab at Embry-Riddle Aeronautical University in Florida. "Technically, it's feasible."
To prove a device had clandestine capabilities, Rojas said, would require technical experts to strip down a device "to the semi-conductor level" and "reverse engineer the design." But, he said, it can be done.
If present, such implants could be detected with a radio-frequency meter that is logging all measurements 7x24, with post-collection filtering of RF noise on public licensed and unlicensed bands.
If present, such a receiver/transmitter would have needed to co-exist with changes in public cellular radio bands, e.g. the transition from 2G to 3G to 4G LTE over the past twenty years.
LeonTheremin|3 years ago
Hypothesis: the people responsible for the electronic harassment of "targeted individuals" use a variant of RAT done in hardware with its own radio and working even without Internet, inserted during processor design, making harder to uncover it, but it can be done.
Consider:
"It's not technically hard to make a device that complies with the FCC that listens to nonpublic bands but then is quietly waiting for some activation trigger to listen to other bands," said Eduardo Rojas, who leads the radio spectrum lab at Embry-Riddle Aeronautical University in Florida. "Technically, it's feasible."
To prove a device had clandestine capabilities, Rojas said, would require technical experts to strip down a device "to the semi-conductor level" and "reverse engineer the design." But, he said, it can be done.
https://www.cnn.com/2022/07/23/politics/fbi-investigation-hu...
walterbell|3 years ago
If present, such a receiver/transmitter would have needed to co-exist with changes in public cellular radio bands, e.g. the transition from 2G to 3G to 4G LTE over the past twenty years.