The HTTP Toolkit CA digital certificate is added to the Trusted credentials:Ī fake VPN service is started on the AVD:īy default, HTTP Toolkit will intercept the network traffic from ALL apps and services installed on the AVD. When the option Android Device via ADB is selected, several things happen behind the scenes: On the main window you'll see several options, select Android Device via ADB: Start Android Vistual Device (AVD) and open the HTTP Toolkit software. Download HTTP Toolkit (it's available for Linux, MacOS and Windows) and then install it on your computer. HttpTolkitįor this tutorial we are going to use HTTP Toolkit that sets up a fake VPN service. On one hand, no root permission is required, on the other hand it might require extra steps to download the captured packets to a computer. Using a fake VPN on Android - this is the simplest way to intercept traffic, and it allows choosing just one app to be redirected and captured. The main disadvantage is that all Android traffic is routed through the proxy and it's more difficult to find the packects related to the app we want to study. Using a proxy on a computer - this method is a bit more complex to setup, but is the one that generally guarantees more flexibility to analyse the captured traffic. using a fake VPN on Android to act like a proxy, like Packet Capture, or HTTP Toolkit.using a proxy on a computer, like mitmproxy, or PolarProxy.There are several ways to accomplish network traffic interception: The proxy will act as Man-in-the-middle between the Android device and the servers it connects to. To intercept the network traffic of an Android device we need a proxy. If the APP you are analysing does not provide a version for x86, or x86_64, you need to use Android 9, or Android 11 on the emulator, because these versions include a translation mechanism from arm instructions to x86. However, some APPs are compiled only for arm, or arm64 CPU architectures. The Android emulator uses the x86, or x86_64 CPU instruction set. Linux: already installed in most Linux distributions.Rooting an Android device is beyond the scope of this tutorial, but you can read this webpage to learn more about it. or a physical smartphone with Android rooted.Android 11 (API version 30) was used for this tutorial.Android Virtual Device (AVD) - see one of these tutorials: Android Studio Emulator - GUI, or Android Studio Emulator - command line to learn how to set up an AVD.In order to implement this tutorial you need to use one of these Android devices: Intercept networt traffic from APPS with certificate pinning.This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License How to intercept network trafic on Android Version Tutorial: Android Network Traffic Interception
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