android reverse engineering

• System
• Tools
• Commands

System

• Linux v5.8

Tools

• apktool
  • yay -S android-apktool
• dex2jar
  • yay -S dex2jar
• jd-cmd
  • yay -S jd-cmd
  • https://github.com/kwart/jd-cli

Commands

• Decompress:

apktool d -s -o decompiled base.apk

• Convert .dex files to .jar:

cd decompiled
dex2jar classes.dex
dex2jar classes2.dex
...

• Decompile:

jd-cmd classes-dex2jar.jar -od src
jd-cmd classes2-dex2jar.jar -od src
...

or

java -jar jd-cli.jar classes-dex2jar.jar -od src
java -jar jd-cli.jar classes2-dex2jar.jar -od src
...