This code is an example of a simple firewall implementation in Python. It utilizes the pydivert library to capture and filter network packets on a specific port. The firewall is designed to block certain packets based on their content, block IP addresses that exceed a certain packet rate or number of blocked packets, and monitor and restart a specified process if it is not running.
The necessary libraries are imported: pydivert for capturing packets, threading for running packet capture and process monitoring concurrently, subprocess for restarting processes, time for time-related operations, psutil for process-related operations, ctypes for setting the console window title, and json for handling JSON file operations.
to run the script under windows install python 3.11 (is the one i used for this code) and from a CMD or powershell install the dependencies:
pip install pydivert
pip install psutil
for running it i used a CMD windows with admin rights, locate the FirewallPython.py file, and just write
FirewallPython.py and the firewall should start running without any problems
Blocking Hex packets:
