Recently bought a USB external soundcard (Mic In, 2 Headphone, 2 USB) Made in China.
LEDs stayed on when PC was off so I looked up how to disable USB power when off, which worked.
Twice now, the ASCP disabled setting has reverted. Have yet to try setting a BIOS password, and I did not try this setting earlier so can not confirm it is this USB device messing with it, maybe I should update my BIOS
ifyou have access to a linux install, you should be able to see if you have files not visible to windows. they will be prefixed with an ascii[unicode] character that blinds windows file finder.
this USB exploit is a second prong to an attack and could possibly use the USB to hold a wedge into a back door, as well as snarphing files.
this is a demonstration of why firmware custody of trust must be unbroken
Twice now, the ASCP disabled setting has reverted. Have yet to try setting a BIOS password, and I did not try this setting earlier so can not confirm it is this USB device messing with it, maybe I should update my BIOS