write-ups-challenges-2022-2023/rise-of-the-androids/SOLUTION.md
2022-11-24 22:59:22 +01:00

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## Difficulty
Medium, 35 points
## How To Solve
1. Decompile the APK, (e.g. using JADX or online: http://www.javadecompilers.com/apk).
2. Figure out the (rather simple) logic of the app, which is located in the `MainActivity.java` file:
- The decoded flag is shown in a toast whenever the code is correct.
3. The code is a construction of strings fetched from `resources/res/values/strings.xml`.
4. Reconstruct the code, enter the code in the app and the flag will be shown.
The correct code is 7402583711.
## Flag
IGCTF{Sp0tt3dTheAndr01dUser}