Reverse Engineer an Android Application

The video tutorial explains the process of decompiling APK files, highlighting the risks of intellectual property theft and data leakage. It demonstrates how to extract APK files using an APK extractor and decode them with APK tool. The tutorial explores the structure of extracted files and shows how to rebuild modified APKs. It concludes with techniques to prevent decompilation, such as code obfuscation and using ProGuard.

What is one of the risks associated with APK decompilation?

• Increased app performance

• Improved user interface

• Intellectual property theft

• Faster app updates

Which tool is used to decode resources from an APK file?

• APK Extractor

• APK Tool

• APK Builder

• APK Compiler

What file extension is associated with the Java code extracted from an APK?

• .java

• .apk

• .dex

• .smali

What should you ensure about the extracted files from your application?

• They are in a compressed format

• They are publicly accessible

• They contain no sensitive information

• They are easy to read

What is the purpose of using code obfuscation?

• To improve code readability

• To make reverse engineering difficult

• To simplify the code

• To make the code run faster

Which tool is mentioned as a commercial application for code obfuscation?

• ProGuard

• APK Tool

• NDK

• Discode

What is the role of NDK in preventing APK decompilation?

• It simplifies the code

• It allows writing libraries in C

• It enhances the user interface

• It speeds up the app