USBSamurai — A Remotely Controlled Malicious USB HID Injecting Cable for less than 10$. than 10$.
The Video is self-explanatory.
All started with this Tweet last April, when I wanted a damn cheap USB implant capable of injecting keystrokes.
It had to be:
- Remotely Controllable
- Fast in Typing
- Tiny as f***k
- Cheaper than a bottle of Vodka
The main idea (for the hardware-side) is to re-use the Logitech’s inexpensive Unifying dongles as implants within USB cables.
To give you an idea… this is how much this dongle cost (CU-0007): 7.74 EURO!
What you need to do is DEAD SIMPLE:
- Remove the top black case without breaking the dongle;
- Push out the PCB & the orange plastic holder;
- Pop-open an USB Cable (I do suggest either [1] or [2]) and solder the Vcc& GND to their related pins on the CU-0007.
- Once everything will be in place,
mount back the metal case of the USB male connector. - Then check if it fits the USB case and glue it with a drop of super-glue.
DONE. Congrats! You just created your First USBsamurai!
Now you just need to pair it with @mame82’s LOGITacker v.0.1.3-beta and you are ready to pwn targets!
For the Software-side, the good @mame82 came to help with his majestic LOGITacker framework!
So far it supports 4 different NRF-based boards:
- Nordic nRF52840 Dongle
- MakerDiary MDK Dongle
- MakerDiary MDK
- April Brother nRF52840 Dongle
I personally opted for the 4th one [3] since is the only one with external Antenna (i.e. Longer Range).
https://github.com/mame82/LOGITacker#24-april-brother-nrf52840-dongle
Just follow LOGITacker’s readme and install the v.0.1.3-beta and install https://github.com/mame82/LOGITacker/releases/download/v0.1.3-beta/logitacker_aprdongle.uf2
I recorder a video to explain how to easily pair USBsamurai with LOGITacker.
Enjoy 🙂
[1] https://aliexpress.com/item/33052091501.html
[2] https://aliexpress.com/item/32771548306.html
[3] https://www.aliexpress.com/item/32975184100.html
About the author Luca Bongiorni
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(SecurityAffairs – USBSamurai, hacking)
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