Extracción de información de sistemas infectados a través de las luces LED
En Air-Gapped Devices Can Send Covert Morse Signals via Network Card LEDs nos cuentan de otro caso de extracción de información de una máquina. Esta vez, a través de los LEDs de la tarjeta de red, utilizando el lenguaje morse.
A security researcher who has a long line of work demonstrating novel data exfiltration methods from air-gapped systems has come up with yet another technique that involves sending Morse code signals via LEDs on network interface cards
Se trataría de instalar un malware en la máquina y utilizarlo para controlar esas lucecitas LED, mediante parpadeos o cambios de color.
Malware installed on the device could programmatically control the status LED by blinking or alternating its colors, using documented methods or undocumented firmware commands,” Dr. Guri said.
Curioso.