Reverse Engineering on Android APKs using Apktool

Hello. Reverse Engineering of Android APKs is basically decompiling the apk, extract the files, and rebuild this changing required changes. To achieve this we use a tool called ‘Apktool’.

Note — Wrapper scripts are not needed, but helpful so you don’t have to type java -jar apktool.jar over and over.

Steps to follow now:

Step1: Download the APK file which you want to decompile and place it somewhere in your machine.

>>This will create a folder with the same name as APK

Step3: Open this above-created folder and look for AndroidManifest.xml

Step4: Add the below key in <application> tag

Step5: Save and Close this xml file.

Steps6: Navigate to this APK generated folder and look for folder structure res>xml

Step8: Paste the below snippet and save this file.

Step9: Open CMD and run the below command

Step10: Copy this new APK in android device and try to install. It will fail to install as this is not signed yet.

Step12: Sign the new APK with this above-installed tool apk-signer.

All set. Your APK is rebuilt.

Thank you !

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