Aston Game: How to View Source Code of an Android APK file Part 2

Thursday, December 7, 2017

How to View Source Code of an Android APK file Part 2

Am writing few words about viewing source code of an android app, to make sure this post appears in Google Search when you search for how to view source code of android apk or view source of apk, view android apk code and purely for nothing else, i am gonna add few more random keywords to make more visibility on android view source code of android apk, Google does not understand grammar, but searches for important keywords such as android, source code, java decompiler, axml printer, JDGUI, smali, which is related to this post, you are here cox i added these words,

when you reverse do reverse engineering for the first time, it will be lil difficult, later its just a min of wrk. so dont skip any step, finish every step before you go to next one. Tanx for bearing with me. Lets go to the real post. :)

Every one who is reading this post is damn fckg intelligent, but every author has his own way of telling, so go step by step.

Step : 1 Download APK Tool (all OS) & "apk-install-windows" if you are using windows from Android-APKTool
Extract the two files in the same folder (APKTool) you should have the files like this
     APKTool
        |- aapt.exe
        |- apktool.bat
        |- apktool.jar

Step : 2 Download Dex-to-Jar Extract it.
           mirror : Dex-to-Jar

Step : 2a Download JD-GUI written by Emmanuel Dupuy
          mirror : JD-GUI

Step 3 : Download Android ADB

Step 4 : Connect your Mobile to PC with USB Debugging Enabled. How to Enable USB Debugging???

Step 5 : Open unzipped ADB folder, Press Shift + Right Click, anywhere in the folder. --> Select "Open Command Window here"

Step 6 : type

adb devices

You should see your device id. If you dont see some random letters, plz check whether you have connected properly.

Step 7 : type

adb pull system/framework/framework-res.apk

Step 8 :Copy the pulled framework files to APKTool Folder
If you have any issues pulling files, you can use my files >> framework.zip

Step 9 : Now, you should have the following in your APKTool folder

apktool if framework-res.apk

You might get an error

Exception in thread "main" brut.androlib.AndrolibException: Cant create directory
: C:UsersVeeVeeapktoolframework
 at brut.androlib.res.AndrolibResources.getFrameworkDir(AndrolibResources.j
ava:663)
 at brut.androlib.res.AndrolibResources.installFramework(AndrolibResources.
java:558)
 at brut.androlib.Androlib.installFramework(Androlib.java:497)
 at brut.apktool.Main.cmdInstallFramework(Main.java:228)
 at brut.apktool.Main.main(Main.java:76)

Go to C:Users<username>
Create New Folder Named "apktool" and inside apktool create new folder named "framework"

re-type :

apktool if framework-res.apk

Success if you get this message
I: Framework installed to: C:UsersVeeVeeapktoolframework1.apk
(This Step is one time Process only, you need not do this again & again)

Till now we were preparing for gathering reverse engineering apk tools

Lets start Ripping APK,
Copy any *.apk to APK tool folder.
Consider the apk name is "Sample.apk"

Step 11:
type :

apktool d -s -f Sample.apk

d --> Decompile
-s --> only xml
-f --> Force delete folder if already exists.

Step : 12
Open Sample Folder, Copy "classes.dex" to Dex2Jar folder,

Step : 12a
Type :

d2j-dex2jar.bat classes.dex

Step : 12b

Type :

ren classes_dex2jar.jar src_class.zip

Feeling Tough, Copy these files into "dex2jar" folder & just double click, skip 12a & 12b EVERYTIME :)

You will find src_class.zip file, copy src_class.zip back to SampleFolder in APKTool.

UnZip src.zip to src

Open any file, i.e *.class inside src folder using JD-GUI

File --> Save All Sources --> src.zip

File --> Exit.

Delete Old classes.dex & src folder.
Unzip src.zip to src

This is only for Educational Purpose. Respect Developers & their work.

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