towsifkafi / MC_Client_Spoofer

Python script to modify minecraft client's info packet and block out specific plugin message packets.

Brand Strip Minecraft Proxy

This is a python script that proxies a Minecraft server and modifies plugin message packets sent by the client to change its name and brand. It can also block out specified packets if they have a keyword match.

🙄 Some minecraft server banned me for using a normal client. so i managed to make this to send different client name to the server.

Requirements

• Python 3.6 or higher
• twisted, quarry, colorama library (to install: pip3 install twisted quarry colorama)

Usage

To run the proxy, use the command below:

python3 brand_strip.py -b <connect_ip> -q <connect_port>

where <connect_ip> and <connect_port> is the ip/port of the Minecraft server you want to connect to.

You may also specify other options such as the listen address and port, and the connect address, using the following arguments:

 -a, --listen-host: address to listen on (default: `0.0.0.0`)
 -p, --listen-port: port to listen on (default: `25565`)
 -b, --connect-host: address to connect to (default: `127.0.0.1`)
 -q, --connect-port: port to connect to (required)

For example, to listen on localhost port 12345 and connect to example.com on port 25565, use the command below:

python3 brand_strip.py -a localhost -p 12345 -b example.com -q 25565

Functionality

The proxy intercepts plugin message packets sent by the client and modifies them to change the client's name and brand. Specifically, it replaces instances of LiteLoader in the packet data with Lunarclient:v2.7.1-2324 or replaces instances of cmclient:f1df6c8 with NiceClient:1337.

The proxy also checks each packet against a list of keywords, and blocks the packet if any of the keywords match. The keywords to check for can be modified within the script by changing the strings_to_check list.

All intercepted packets are logged to the console, along with their direction (upstream or downstream), identifier, and data. Modified packets are highlighted in cyan, blocked packets are highlighted in red, and upstream/downstream packets are highlighted in blue/magenta, respectively.

Credits

It makes use of the quarry library by David Vierra and the twisted library by Twisted Matrix Laboratories. Also thanks to LiveOverflow for I Spent 100 Days Hacking Minecraft.