MITM Kakaotalk LOCO Packets

This is a simple script to man-in-the-middle LOCO packets with mitmproxy.

Setup on your MITM host:

$ python3 -m venv venv
$ source venv/bin/activate
(venv) $ python3 -m pip install mitmproxy bson cryptography
(venv) $ mitmdump --mode wireguard --rawtcp -s loco_mitm.py

Android emulator setup:

Install the Kakaotalk app if not done already
Install the WireGuard app
Change the IP address in mitmproxy's generated WireGuard config to 10.0.2.2. Example:

[Interface]
PrivateKey = MCCAFVMZQk+k+sbdXx0B4LG+Mij/UO7qyWa7IRqv/nA=
Address = 10.0.0.1/32
DNS = 10.0.0.53

[Peer]
PublicKey = K+t/qiGO8tlA9L7wjAOb8wqjnu/NuthHgLs2gOCIDgY=
AllowedIPs = 0.0.0.0/0
Endpoint = 10.0.2.2:51820

Import the config into the WireGuard app

Back on your MITM host start Frida (see setup instructions):

# Start frida-server
$ adb root && adb shell /data/local/tmp/frida-server

# Start LOCO debugging script
$ frida -U -l loco-tracer.js -f com.kakao.talk

To run the unit tests:

Install pytest and pytest-datadir via pip
Run the tests: $ pytest tests/test_loco_parser.py

1.2 KiB Raw Blame History

MITM Kakaotalk LOCO Packets

1.2 KiB

Raw Blame History