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WiFi Hides Inside a USB Cable

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Re: WiFi Hides Inside a USB Cable

#61
post #31
post #28

Would a high voltage loop, for breaking components, be a good solution to an attack like this? Like, fry the electronic components to verify it's just plain metal on the insides?

Perhaps, but it could start a fire. You might consider plugging into a power supply and measuring if there is any current draw.

USB type A male-to-female inline ammeters are really cheap, and accurate to 0.1W. I got one for ten bucks.

Re: WiFi Hides Inside a USB Cable

#63
post #6

Earlier quoted context omitted.

How? I've never seen a device, certainly not a PC, that will just randomly connect to any router it sees without some sort of user input.

It looks like it could be a variant of this squashed down to fit in the connector of a cable. https://github.com/spacehuhn/wifi_ducky If it is, then the computer doesn't connect to a router at all. The USB cable could make itself available as a network that you remotely connect to then execute commands. The cable then types out your commands as it imitates a USB keyboard. Have you ever seen a device or PC that random…

I can't tell if you're being sarcastic or not but yes, every device I own automatically accepts input from any keyboard I plug in.

Re: WiFi Hides Inside a USB Cable

#64
post #6
post #3

This is scary. I mean someone can just replace the cables in my house and my phones and computer would become infected. I can't even imagine the headache this does for company's cybersecurity practices. A rogue janitor replaces the usb cables on some of the employees of a company that makes $INSERT_SUPER SECRET_TECH$ and done.

How? I've never seen a device, certainly not a PC, that will just randomly connect to any router it sees without some sort of user input.

'How' is DHCP.

That's one. Apparently there are least 28 more ways to use usb to attack a machine.

https://www.bleepingcomputer.com/news/security/heres-a-list-...

Re: WiFi Hides Inside a USB Cable

#65
post #63

Earlier quoted context omitted.

It looks like it could be a variant of this squashed down to fit in the connector of a cable. https://github.com/spacehuhn/wifi_ducky If it is, then the computer doesn't connect to a router at all. The USB cable could make itself available as a network that you remotely connect to then execute commands. The cable then types out your commands as it imitates a USB keyboard. Have you ever seen a device or PC that random…

I can't tell if you're being sarcastic or not but yes, every device I own automatically accepts input from any keyboard I plug in.

Sorry, I was trying to reply to the above comment by structuring it in the same way, but making one minor switch to show how severe the issue can be. Trusting a router may not happen, but trusting a keyboard (as you've pointed out) almost always does.

Re: WiFi Hides Inside a USB Cable

#66
post #3

This is scary. I mean someone can just replace the cables in my house and my phones and computer would become infected. I can't even imagine the headache this does for company's cybersecurity practices. A rogue janitor replaces the usb cables on some of the employees of a company that makes $INSERT_SUPER SECRET_TECH$ and done.

[deleted]

Re: WiFi Hides Inside a USB Cable

#67
post #6

Earlier quoted context omitted.

How? I've never seen a device, certainly not a PC, that will just randomly connect to any router it sees without some sort of user input.

'How' is DHCP. That's one. Apparently there are least 28 more ways to use usb to attack a machine. https://www.bleepingcomputer.com/news/security/heres-a-list-...

>'How' is DHCP.

Not without notice. Your computer won't connect to a wirless network automatically. So in order for this to work, the USB-device needs the same SSID and key. Then, in order to make it not suspicious (and get your data) you need to actually forward traffic to the internet. Not sure if those devices can repeat.

Emulating an USB ethernet might help you, as those will connect, but without uplink it's still suspicious.

Re: WiFi Hides Inside a USB Cable

#68

Earlier quoted context omitted.

Wow, do you know it actually works? Seems cool.

Looking at the reviews, it seems that the "GPS" is just a cell tower ID, and the microphone is very quiet.

OK, it's not NSA-level tech, but a $10 hidden mic with location and GSM cellular built into a charging cable, that 95% of us never think twice about is scarey cool.

Re: WiFi Hides Inside a USB Cable

#69

I'm wondering whether any of the Google security team will use this for their "leaving tradition" [1], or whether it's considered cheating, just too easy. [1]: https://twitter.com/LeaKissner/status/1085624255381827584

I worked on a security team that did this when I left - I taped & signed every USB connection at my desk and checked the signatures every time before I unlocked it.

Re: WiFi Hides Inside a USB Cable

#70

Huh, so all it takes is someone to break into your home when you're gone and swap a cable. Seems like privacy doesn't really exist for people who truly need it. Unless they're not using any technology.

Do you not use laptops? Or do you never leave your home?

Huh? What I wrote is basically saying privacy doesn't exist for the ones who truly need it. Since those two cases you write in question are pretty much universal and the majority of people using technology would be prone to them. Unless they're not using any form of technology.
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