BadUSB - On Accessories that Turn Evil by Karsten Nohl + Jakob Lell

What people said

fla · 2014-10 · Recommendation

For anyone interested in the subject I recommend watching the presentation [1] by by Karsten Nohl and Jakob Lell at Black Hat USA 2014. [1] [VIDEO]

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Crosseye_Jack · 2019-03 · Reference

The NSA have been using Hard Drive Firmware exploits for years. Such an attack could hide malware that also survives a format[0] (Which is why I brought up a drive replacement in my prev post). I wouldn't be surprised if the same can't be done with SSD Firmware too (we have already seen people do "bad things" with USB Memory sticks [1]) Also if a full BIOS flash has been performed you might be SOL as after a power cycle the modified BIOS is now the first thing loaded by your system (Or it might be the VBIOS, its been a while.) which could prevent future flashing of the BIOS or fake the flashing process but not actually flash anything. If you have a board that can recovery flash you might be able to recover but how do you trust the system afterwards? As the BIOS is usually stored on a SPI Flash you could use an external programmer to dump the content of the flash and do a diff on the firmware file. You have to think about who is your attacker. Are the Kiddies going to go to such lengths to stay persistent on a consumers laptop they use as a facebook machine? Prob not. But is it outside the scope of a determined attacker (or nation state) who managed to get a first stage attack malware inside a large company? IMO it would depend on how valuable they determine access to your network / data is. [0] [LINK] [1] [VIDEO] EDIT: I've not spoke about VBIOS infections as the GPU Vendors on at least modern cards have been really locking down their GPUS and as far as I've seen, I've yet to

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halosghost · 2015-10 · Reference

On the one hand, this looks incredibly cool. On the other hand, I actually find it a bit worrying. With things like BadUSB[1] still out there, I would be worried about anything that gives USB devices more wide reach or higher privileges. That this project aims to offer "full functionality" of the device, afaik, means it is likely doing exactly the kind of thing that I find worrying. Can anyone talk about this a little more in-depth? [1] [VIDEO]

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