Absolute persistance technology amounts to a persistent rootkit pre-installed by many device manufacturers (Acer, Asus, Dell, HP, Lenovo, Samsung, Toshiba, etc) to facilitate LoJack for laptops, and other backdoor services:
The Absolute persistence module is built to detect when the Computrace and/or Absolute Manage software agents have been removed, ensuring they are automatically reinstalled, even if the firmware is flashed, the device is re-imaged, the hard drive is replaced, or if a tablet or smartphone is wiped clean to factory settings.
Absolute persistence technology is built into the BIOS or firmware of a device during the manufacturing process.
Anyhow, if a user legally purchases, secondhand or new, a device that originally had Absolute persistence technology built in and may even have had it activated, and wishes:
- to detect whether the technology is still present in the device; and, if so,
- to remove that technology from the device (i.e. disinfect the device),
how best should (s)he go about this?
I'm guessing that Coreboot is part of the answer.