How to De-obfuscate Android Obfuscated App Logic Stack Traces using Sentry SDK

What is Sentry?

Sentry is a lightweight, real-time crash reporting tool that helps developers track, prioritize, and fix stability issues that diminish app quality. Its integration with Appdome’s security features allows for easier debugging of obfuscated code.

Overview of Sentry Stack Traces with Appdome’s Obfuscate App Logic

Before diving into the de-obfuscation process, it’s important to understand the impact of integrating Appdome’s Obfuscate App Logic with Sentry. This integration results in obfuscated stack traces that are difficult to interpret without the appropriate de-obfuscation keys, thus safeguarding your app’s internal logic by making the stack traces difficult to read without proper de-obfuscation keys. The following sections of this article will guide you through the steps to automatically de-obfuscate these stack traces, starting with a glimpse at how an obfuscated stack trace looks prior to de-obfuscation.

Obfuscate Android Stack Traces using Sentry

Combining Appdome Android Obfuscate App Logic with Sentry will result in obfuscated stack traces in Sentry.

For manual deobfuscation, please follow How to Deobfuscate Crash Stack Traces for Debugging Android Apps when using Obfuscate App Logic

Preparing Your App

To start with the de-obfuscation process, your app needs to first be obfuscated using Appdome’s Obfuscate App Logic security features.

Automatic De-obfuscation of Android Stack Traces Using Sentry

Step 1: Build the feature – Obfuscate App Logic.

Figure 1: Fusion Set that will contain the Obfuscate App Logic feature
Note: Naming the Fusion Set to correspond to the protection(s) selected is for illustration purposes only (not required).

2.1.2. To add the Obfuscate App Logic feature to this Fusion Set, using the Appdome Console, follow the steps in Sections 2.2.1-2.2.2 of this article, Building the Obfuscate App Logic feature.

2.1.3. Open the Fusion Set Detail Summary by clicking the “…” symbol on the far-right corner of the Fusion Set.

2.1.4. Copy the Fusion Set ID from the Fusion Set Detail Summary (as shown below):

sentry-cli upload-proguard --uuid <you project UUID> <path/to/mapping.txt> --org <your organization> --project <project name which attached to the UUID>

From this point forward, every stack trace in Sentry related to this Appdome build will be automatically deobfuscated.