SyntaxFix

[android] Is it possible to decompile an Android .apk file?

Decompilation of APK file is possible. But it might be difficult to understand the code if it is obfuscated.

ApkTool to view resources inside APK File

  • Extracts AndroidManifest.xml and everything in res folder(layout xml files, images, htmls used on webview etc..)
  • command : apktool.bat d sampleApp.apk
  • NOTE: You can achieve this by using zip utility like 7-zip. But, It also extracts the .smali file of all .class files.

Using dex2jar

  • Generates .jar file from .apk file, we need JD-GUI to view the source code from this .jar.
  • command : dex2jar sampleApp.apk

Decompiling .jar using JD-GUI

  • decompiles the .class files (obfuscated- in a case of the android app, but a readable original code is obtained in a case of other .jar file). i.e., we get .java back from the application.

Examples related to android

• Under what circumstances can I call findViewById with an Options Menu / Action Bar item? • How to implement a simple scenario the OO way • My eclipse won't open, i download the bundle pack it keeps saying error log • getting " (1) no such column: _id10 " error • java doesn't run if structure inside of onclick listener • Cannot retrieve string(s) from preferences (settings) • strange error in my Animation Drawable • how to put image in a bundle and pass it to another activity • FragmentActivity to Fragment • A failure occurred while executing com.android.build.gradle.internal.tasks

Examples related to obfuscation

• Is it possible to hide/encode/encrypt php source code and let others have the system? • Convert a PHP script into a stand-alone windows executable • How do I hide javascript code in a webpage? • Is it possible to decompile an Android .apk file? • Best Java obfuscator? • How can I hide or encrypt JavaScript code? • Protect .NET code from reverse engineering? • Best solution to protect PHP code without encryption • How do I protect Python code? • Is there a code obfuscator for PHP?

Examples related to apk

• Application Installation Failed in Android Studio • Difference between signature versions - V1 (Jar Signature) and V2 (Full APK Signature) while generating a signed APK in Android Studio? • Session 'app': Error Installing APK • Android Error Building Signed APK: keystore.jks not found for signing config 'externalOverride' • Build and Install unsigned apk on device without the development server? • The APK file does not exist on disk • Android Studio: Application Installation Failed • How to retrieve Key Alias and Key Password for signed APK in android studio(migrated from Eclipse) • ADB Install Fails With INSTALL_FAILED_TEST_ONLY • Upload failed You need to use a different version code for your APK because you already have one with version code 2

Examples related to decompiling

• How to decompile to java files intellij idea • How to decompile an APK or DEX file on Android platform? • How to change already compiled .class file without decompile? • Reverse engineering from an APK file to a project • Decompile an APK, modify it and then recompile it • Is it possible to decompile a compiled .pyc file into a .py file? • Extract source code from .jar file • Is there a way to get the source code from an APK file? • Is it possible to decompile an Android .apk file? • How can I protect my .NET assemblies from decompilation?

Examples related to dex

• Unable to merge dex • Android dex gives a BufferOverflowException when building • Unable to execute dex: method ID not in [0, 0xffff]: 65536 • How to extract code of .apk file which is not working? • Unable to execute dex: Multiple dex files define Lcom/myapp/R$array; • What are .dex files in Android? • Is it possible to decompile an Android .apk file? • decompiling DEX into Java sourcecode