Challenge Overview

In a Capture the Flag (CTF) cybersecurity challenge, participants have been tasked with analyzing a mystery Android device that contains a specially designed application. The goal is to uncover hidden flags dispersed within the app, each flag leading to the next stage of the challenge. To succeed, challengers must investigate the app's interface, functions, and underlying code, piecing together hints and bypassing obstacles to reveal each concealed flag. The target machine is running an Android OS and is accessible at IP 10.10.1.101. It hosts an application named "ECCAppLock" that contains a hidden flag. To successfully complete the challenge, participants must connect to the device, identify, and retrieve the hidden flag by exploring the app's activities and functions.

What You Will Learn

  • Analyzing Android application architecture and components to understand app structure and behavior.
  • Using ADB to connect to and interact with an Android device for investigation purposes.
  • Decompiling and reverse engineering the application using Apktool and jadx-gui to inspect source code and resources.
  • Identifying and extracting hidden flags by exploring app activities, functions, and embedded logic.
  • Applying systematic problem-solving skills to progress through multiple stages of a Capture the Flag (CTF) challenge.

Program Curriculum

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