VIBE HACKING: PROXYING FLUTTER TRAFFIC ON ANDROID WITH CLAUDE

Summary from the TLDR InfoSec newsletter

Cronometer's Android app uses Flutter's own TLS stack, which ignores system proxies and bakes certificate pinning into libflutter.so, making traditional MITM approaches fail. By combining Frida on a rooted Pixel with custom hooks, it becomes possible to detect and patch Flutter's TLS verification, observe DNS lookups and socket connections, and then transparently redirect selected hosts through a proxy like mitmproxy. Injecting an HTTP CONNECT tunnel at the syscall level lets HTTPS traffic flow through the proxy without modifying the APK.