Securing Bluetooth Archives - Good Shepherd News - Fastest Growing Religious, Free Speech & Political Content https://goodshepherdmedia.net/tag/securing-bluetooth/ Christian, Political, ‎‏‏‎Social & Legal Free Speech News | Ⓒ2024 Good News Media LLC | Shepherd for the Herd! God 1st Programming Mon, 23 Jun 2025 05:27:27 +0000 en-US hourly 1 https://wordpress.org/?v=6.9.1 https://goodshepherdmedia.net/wp-content/uploads/2023/08/Good-Shepherd-News-Logo-150x150.png Securing Bluetooth Archives - Good Shepherd News - Fastest Growing Religious, Free Speech & Political Content https://goodshepherdmedia.net/tag/securing-bluetooth/ 32 32 ESP32 Marauder Puts a Bluetooth and Wi-Fi Pen Testing Toolkit In Your Pocket https://goodshepherdmedia.net/esp32-marauder-puts-a-bluetooth-and-wi-fi-pen-testing-toolkit-in-your-pocket/ Mon, 23 Jun 2025 17:45:57 +0000 https://goodshepherdmedia.net/?p=20940

UPDATE: justcallmekoko has launched a new iteration of the Marauder (v6) for $60, which includes a sleeker look, options for external antennas, and the ability to update its firmware over Wi-Fi and/or SD card.

The original article continues below.

Penetration testers and security analysts looking for an easily-pocketable tool for Bluetooth and Wi-Fi testing purposes have another option, in the form of the ESP32 Marauder from security tester justcallmekoko.

“The Marauder is a portable penetration testing tool created for Wi-Fi and Bluetooth analysis,” the pseudonymous justcallmekoko explains. “It comes installed with a suite of offensive and defensive tools all running on an ESP32. I was inspired to create this tool by Spacehuhn’s deauther project. I wanted to bring similar functionality to the ESP32 and introduce new Bluetooth capabilities to the tool.”

“The tool itself serves as a portable device used to test and analyze Wi-Fi and Bluetooth devices. Use this tool and its firmware with caution as the use of some of its capabilities without explicit consent from the target owner is unlawful in most countries.”

The firmware justcallmekoko has created is compatible with any ESP32-based development board, and designed to provide feedback via a 2.8″ ILI9341-based TFT touchscreen display. The pre-assembled versions take the firmware and install it onto a custom PCB with Espressif ESP32-WROOM chip at its heart and an integrated lithium-polymer charging circuit for power on the go.

The custom PCB is powered by an ESP32-WROOM. (📷: justcallmekoko)

The entire unit is then enclosed in a 3D-printed chassis, which in the case of the pre-assembled version comes in a selection of colors: black, “Galaxy Black,” neon green, and silver. Justcallmekoko warns, however, that “most of the work so far has been put into designing the hardware,” meaning that the current release has “limited firmware capabilities” — but that development is ongoing to add new features and functionality.

More details on the project can be found on GitHub, where the firmware, hardware, and 3D print files can be downloaded; the pre-assembled ESP32 Marauder, meanwhile, can be purchased from Tindie. source

 

ESP32 Marauder Kit Assembly and Programming Guide

Thank you for purchasing the ESP32 Marauder Kit! Let’s get started with assembling and programming your device.

Things You’ll Need

  • A computer with Google Chrome
  • A 3 mm Allen Wrench
  • An ESP32 Marauder Kit

Programming the Device

    1. First lets program the device as the buttons are not accessible while assembled. Go to :
      Marauder Online Flasher (https://flasher.biscuitshop.us)
    2. Hold the BOOT button (bottom one) on the back of the Marauder while plugging it into your computer. The screen should stay black if done correctly.
    3. Click the connect button on the website and select the COM port associated with your device. If you have multiple COM ports, unplug the device, see which port disappears, then repeat step two and connect to the correct port.

Connect the Device

    1. Click the dropdown menu and select CYD2USB w/o GPS. Do not choose the one shown in the pic (Unless you purchased from me early on and your device does not have USB-C), I have started using the new models for all orders going forward.

    1. Click the latest version 2.8 inch – (1.0.0) and click the program button. Allow it to finish without switching windows.

  1. Once programming is complete, the display will stay black. Power cycle the device, and it should boot into the Marauder firmware.

This same process can be used to update your device as new releases come out. As of July 15, 2024, Version 1.0.0 has just been released.

Assembling the Device

Switch to Battery-Powered Instructions
  1. Take the bottom part of the case and place the ESP32 Marauder PCB into it.
  2. Install the top cover and use the 4 provided screws to fasten it to the bottom half.

source

]]> What is Flipper Zero? https://goodshepherdmedia.net/what-is-flipper-zero/ Thu, 02 Mar 2023 10:20:34 +0000 https://goodshepherdmedia.net/?p=10914 What is Flipper Zero?

Pen Test Tool for Securing Network, Wifi, Bluetooth, NFC Signals 
Securing Communications within a secure zone

Your cyber buddy

Flipper Zero is a tiny piece of hardware with a curious personality of a cyber-dolphin. It can interact with digital systems in real life and grow while you use it. Explore any kind of access control system, RFID, radio protocols, and debug hardware using GPIO pins.
The idea of Flipper Zero is to combine all the hardware tools you’d need for exploration and development on the go. Flipper was inspired by pwnagotchi project, but unlike other DIY boards, Flipper is designed with the convenience of everyday usage in mind — it has a robust case, handy buttons, and shape, so there are no dirty PCBs or scratchy pins. Flipper turns your projects into a game, reminding you that development should always be fun.
Flipper Zero top side GPIO pins
Flipper Zero back side USB Type-C port
Flipper Zero specification

Flipper Zero is completely autonomous and can be controlled from a 5-Position directional pad without additional devices, such as computers or smartphones. Common scripts and functions are available from the menu.

For more control, you can connect to Flipper via USB. Instead of a TFT/IPS/OLED, we decided to build in a cool old-school LCD screen, which is perfectly visible in sunlight and has an ultra-low power consumption of 400nA with the backlight turned off.

  • 1.4″ monochrome LCD display  128×64 px, ultra-low power Sunlight readable
  • 5-Button directional pad for menu navigation
  • Status LED
  • Exit/back button

Flipper Zero is completely autonomous and can be controlled from a 5-Position directional pad without additional devices, such as computers or smartphones. Common scripts and functions are available from the menu.

For more control, you can connect to Flipper via USB. Instead of a TFT/IPS/OLED, we decided to build in a cool old-school LCD screen, which is perfectly visible in sunlight and has an ultra-low power consumption of 400nA with the backlight turned off.

  • GPIO pins 3.3V logic levels (5V tolerant)
  • Infrared transceiver
  • Wrist strap hole
  • USB Type-C
  • Power and battery charging
  • Firmware update
  • MicroSD Card slot
  • Sub-1 GHz Transceiver

This is the operating range for a wide class of wireless devices and access control systems, such as garage door remotes, boom barriers, IoT sensors and remote keyless systems.Flipper has an integrated 433MHz antenna, and a CC1101 chip, which makes it a powerful transceiver capable of up to 50 meters range.

Sub-1 GHz Range

Smart sockets & bulbs
IoT sensors & doorbells
Flipper Zero 433 MHz
CC1101 is a universal transceiver designed for very low-power wireless applications. It supports various types of digital modulations such as 2-FSK, 4-FSK, GFSK and MSK, as well as OOK and flexible ASK shaping. You can perform any digital communication in your applications such as connecting to IoT devices and access control systems.
Oh, and one more thing — Flipper uses 433 MHz to communicate with other Flippers out there, so you can make some cyber-dolphin friends 🙂

Customizable radio platform

Flipper Zero CC1101 radio chipset

Garage doors & barriers

125kHz RFID Low-frequency proximity cards

This type of card is widely used in old access control systems around the world. It’s pretty dumb, stores only an N-byte ID and has no authentication mechanism, allowing it to be read, cloned and emulated by anyone. A 125 kHz antenna is located on the bottom of Flipper — it can read EM-4100 and HID Prox cards, save them to memory to emulate later.

You can also emulate cards by entering their IDs manually.
Moreover, Flipper owners can exchange card IDs remotely.

Flipper Zero EM4100 emulator
Flipper Zero 125 khz proximity card reader and emulator

NFC

High-frequency proximity cards

Flipper Zero has a built-in NFC module (13.56 MHz). Along with the 125kHz module, it turns Flipper into an ultimate RFID device operating in both Low Frequency (LF) and High Frequency (HF) ranges. The NFC module supports all the major standards.

It works pretty much the same as the 125 kHz module, allowing you to interact with NFC-enabled devices — read, write and emulate HF tags.

Flipper Zero 125 khz proximity card reader and emulator

Bluetooth

Connect to apps

Flipper Zero has a built-in Bluetooth Low Energy module. As with other Flipper wireless features, we will be providing an open source library for adding Flipper support to community-made apps.

Full BLE support allows Flipper Zero to act as both a host and a peripheral device, allowing you to connect your Flipper to 3rd-party devices and a smartphone simultaneously.

Our mobile developers are designing official iOS and Android apps to let you unleash Flipper’s potential with a larger screen and greater control.

Flipper Zero 125 khz proximity card reader and emulator

The infrared transmitter can transmit signals to control electronics such as TVs, air conditioners, stereo systems and more.

Flipper has a built-in library of common TV vendor command sequences for power and volume control. This library is constantly updated by Flipper community users uploading new signals to Flipper’s IR Remote database.

Infrared Transmitter
Flipper Zero infrared transmitter
Flipper Zero also has an IR receiver that can receive signals and save them to the library, so you can store any of your existing remotes to transmit commands later, and upload to the public IR Remote database to share with other Flipper users.
Flipper Zero infrared receiver
  • Infrared learning feature
  • Infrared Transceiver
  • Infrared receiver

Flipper Zero bad usb attack toolkit

MicroSD Card

There is lots of heavy data Flipper has to store: remotes codes, signal databases, dictionaries, image assets, logs and more. All this data can be stored on an SD card, as well as user plugins.

The SD slot will have a push-push type connector, so the card will be reliably secured inside and won’t stick out.
Flipper Zero will support any FAT32 formatted microSD card to store your assets so you’ll never have to worry the memory will run out. The card is not required for Flipper Zero to operate and is not included.

External storage for apps and data
Hand strap hole

Tool for Hardware Exploration

Flipper Zero — Tool for Hardware Hacking

Hand strap hole

Flipper Zero is a versatile tool for hardware exploration, firmware flashing, debugging, and fuzzing. It can be connected to any piece of hardware using GPIO to control it with buttons, run your own code and print debug messages to the LCD display. It can also be used as a regular USB to UART/SPI/I2C/etc adapter.
  • SPI/UART/I2C to USB converter – Communicate with any hardware from your desktop application.
  • Firmware flashing tool – Flash any kind of SPI memory, such as EEPROM.
  • Fuzzing tool – Test any protocols and signals.
  • Built-in 5V and 3.3V power pins. Control from built-in buttons and display, no PC required.
  • Completely Autonomous

Flipper Zero has a built-in 1-Wire connector to read iButton (aka DS1990A, Touch Memory or Dallas key) contact keys. This old technology is still widely used around the world. It uses the 1-Wire protocol that doesn’t have any authentication. Flipper can easily read these keys, store IDs to the memory, write IDs to blank keys and emulate the key itself.

Flipper Zero has a unique contact pad design on the corner — its shape works as a reader and a probe to connect to iButton sockets at the same time. This mode is also handy for silently intercepting the 1-Wire data line.

iButton
Flipper Zero ibutton 1-wire reader
1-Wire
+
_
Flipper Zero iButton emulator
1-Wire keys (Touch Memory)

What’s inside

Flipper Zero technical specification and scheme

Tech specs:

        • Bluetooth LE 5.0 TX Power: 0 dBm max RX Sensitivity: -96 dBm Data rate: 2 Mbps
      Infrared TX/RX range: 800-950 nm TX power: 300 mW
MCU (Microcontroller unit)
  • Model: STM32WB55RG
  • ARM Cortex-M4 32-bit 64 MHz (application processor)
  • ARM Cortex-M0+ 32 MHz (network processor)
  • Flash: 1024 KB
  • SRAM: 256 KB
  • Sub-1 GHz module
  • Chip: TI CC1101
  • TX Power: 0 dBm max
  • Frequency bands (depends on your region):
    •  315 MHz
    • 433 MHz
    •  868 MHz
    • 915 MHz
  • Vibration Motor
  • Battery  LiPo 2000 mA⋅h 7 days approximately
  • Micro SD
  • Buzzer Frequency: 100-2500 Hz Sound Output: 87 dB Type: Coin
  •  Display LCD Monochrome Resolution: 128×64 px Controller: ST7565R Interface: SPI Diagonal Size: 1.4“
  • GPIO – 3.3 CMOS Level Input 5V tolerant Up to 20 mA per digital pin
Physical:
Size: 100 x 40 x 25 mm
Weight: 102 grams
Body materials: PC, ABS, PMMA
Operating temperature: 0 ~ 40 °C
NFC Frequency: 13.56 MHz
Supported cards:
  •  ISO-14443A/B
  • One well-known brand
  • FeliCa™
  • NFC Forum protocols

Frequency: 125 kHz Modulation: AM, PSK, FSK
Supported cards:

  • EM400x, EM410x, EM420x
  •  HIDProx, Indala
Control
5-button joystick
Back button
Reboot — Back+Left buttons for 2 seconds
USB
1x USB 2.0 port, type C
USB device
Charging
iButton 1-Wire
Operate modes: Reader/Writer/Emulator
Supported protocols:
● Dallas DS1990A
● CYFRAL
GPIO Pinout
Full size image
Live 3D model
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