Start with the protected package
DexProtector supports APK and AAB inputs and can protect Java, Kotlin and native code. Its published Android feature matrix includes encryption-based integrity control, code and file checks, certificate checks, anti-debugging, anti-Frida, anti-root, anti-emulator, anti-Xposed and anti-sideloading.
Those features leave different evidence. A certificate check follows the installed signing identity. File checks read packaged or extracted content. Anti-Frida and anti-Xposed checks inspect processes, libraries, ports, threads or modified runtime behavior. Code encryption moves useful methods away from their normal static location until the application needs them.
Find the first useful boundary
We do not treat every failed launch as the same protection event. We record the exact point where normal execution changes: application startup, login, entry to a protected screen or construction of the target request. That boundary tells us which checks affect the commercial task.
- Inventory DEX files, assets and native libraries by ABI.
- Watch new executable mappings and files created after launch.
- Compare a normal device run with the failing analysis run.
- Trace values entering the HTTP client after all interceptors.
Rebuild the backend flow
Once the app is running, we map endpoint discovery, authentication, cookies, signatures, binary encoding and server errors. The deliverable runs outside the protected app when the protocol permits it. If a key remains tied to Android Keystore or device attestation, that dependency is shown in the design and handled at the narrowest possible boundary.
Reviewed 30 August 2026 · SReverse research desk