FORCE: A Powerful Tool for RF Signal Analysis and Penetration Testing

A breakthrough device for analyzing, testing, and exploiting vulnerabilities in 315 MHz and 433 MHz remotes.

What is FORCE?

A few months ago, I set out to build a project from scratch to improve my programming and PCB design skills. That project became FORCE—a powerful device designed for RF security research and penetration testing.

Key Features of FORCE

Brute Force Attack

FORCE can perform a brute-force attack on 315 MHz or 433 MHz frequencies, cycling through possible remote control codes to test the security of RF-based systems.

Signal Analyzer

If you have an unknown remote and don’t know its frequency, FORCE can help. Enter the analyzer mode, hold down a button on your remote, and FORCE will detect and analyze its frequency and RSSI (signal strength).

Replay Attack – Exploiting a Common Vulnerability

One of FORCE’s most powerful features is its ability to perform a replay attack.

How Does the Vulnerability Work?

Many 315 MHz and 433 MHz remotes still use fixed codes, meaning they send the exact same signal every time a button is pressed. This allows an attacker to record the signal and replay it later—essentially cloning the remote.

How FORCE Uses This Vulnerability

• FORCE captures the remote’s RF signal, protocol, and bit sequence.
• It then retransmits the signal, allowing it to act as the original remote.
• This technique can be used to test whether a system is vulnerable to RF replay attacks.

If a remote is vulnerable, the best solution is to switch to a rolling code system that changes with every button press, making replay attacks impossible.

Advanced Firmware Update System

FORCE includes an easy-to-use OTA (Over-the-Air) update feature. Here’s how it works:

1. When you enter update mode for the first time, FORCE will display:

   • WiFi SSID (network name)
   • Password
   • IP Address

2. Connect to the WiFi network created by the ESP32.

3. Open a browser and go to the IP address displayed on the screen.

4. A list of available WiFi networks will appear—select yours, enter the password, and FORCE will save these settings for future updates.

This means you can update FORCE wirelessly, without needing a USB connection.

Upcoming Updates

FORCE is just getting started! I have huge updates planned.

The updates will make FORCE an even more powerful tool for RF security analysis.

Final Thoughts

FORCE is more than just a project—it’s a game-changing tool for RF security testing. Whether you’re analyzing remote signals, testing system vulnerabilities, or just exploring RF technology, FORCE provides a powerful and easy-to-use solution.

Want to see FORCE in action? Stay tuned for upcoming tutorials!