Car Backdoor Maker - by @UnaPibaGeek & @holesec
C++ QMake Other
Switch branches/tags
Nothing to show
Latest commit b61f9fe Aug 15, 2017 shei Windows x32 release v1.0
Failed to load latest commit information.
car-backdoor-maker Windows x32 release v1.0 Aug 15, 2017
firmware Update CBM and schematics Jul 21, 2017
hardware-schematics Update CBM and schematics Jul 21, 2017 Update Jun 2, 2017

CBM - The Bicho

A hardware-backdoor for CAN bus - by @UnaPibaGeek & @holesec

For the first time, a hardware backdoor tool is presented having several advanced features, such as: remote control via SMS commands, automated launch of attack payloads at a GPS location or when a specific car status is reached; and a configuration interface that allows users to create attack payloads in an easy manner. Have you ever imagined the possibility of your car being automatically attacked based on its GPS coordinates, its current speed or any other set of parameters? Now it's possible :-)

Our project is divided in two parts: the "Car Backdoor Maker" (PC software) and "The Bicho" (hardware-backdoor for CAN bus).

Car Backdoor Maker

The "car backdoor maker" is a PC software that allows payload customization for using with the hardware-backdoor. It has an intuitive graphical interface:

Under "car backdoor maker" folder, you'll find the source code to compile it using Qt C++ 5.6.

The Bicho

The Bicho is a hardware-backdoor that must be connected to the car's OBD-II port. It supports multiple attack payloads (pre-configured using Car Backdoor Maker) and it can be used against any vehicle that supports CAN, without limitations regarding manufacturer or model. Each one of the payloads is associated to a command that can be delivered via SMS, allowing remote execution from any geographical point. Furthermore, as an advanced feature, the attack payload can be configured to be automatically executed once the victim's vehicle is proximate to a given GPS location. The execution can also be triggered by detecting the transmission of a particular CAN frame, which can be associated with the speed of the vehicle, its fuel level, and some other factors, providing the means to design highly sophisticated attacks and execute them remotely.

Under "hardware-schematics" and "firmware" folders you'll find all you need to build our hardware-backdoor in your own lab.


  • Hardware schematics release date: June 20 (2017).
  • Firware release date: July 15 (2017).
  • Car backdoor maker release date: July 15 (2017).