Android apk package cracking

---

foreword

How to get the Android apk package and how to crack it. The process is as follows

---

1. Pre-work

1. Get an apk file and modify its suffix to zip

   例如：  test.apk   =>   test.zip	 		
   

2. Use the decompression tool to decompress. After decompression as shown in the figure

	获取到原始文件目录，注意其中的 classes.dex 文件，后面会用到

3. Download tool
   dex to jar:
   https://github.com/pxb1988/dex2jar/releases
   jar package class decompilation tool jd-gui
   https://github.com/java-decompiler/jd-gui/releases/tag/v1. 6.6
   jd-gui Download according to the system type, I am windows, the downloaded jd-gui-windows-1.6.6.zip can be used after decompression.

4. Install dex and jd-gui

    两个我都是下载的zip包，解压即可用
   

After decompressing dex:

After decompressing jd-gui:

Second, the official start

1. Configure dex environment variables for subsequent use

2. Find the classes.dex file in the apk package after decompression

在文件目录输入cmd 回车，进入cmd 窗口，使用命令

d2j-dex2jar classes.dex

如图：

Enter to confirm and generate

3. Obtain the jar file. Open the decompressed jd-gui and run the jd-gui.exe file. Drag the jar file into the window

	目录中 android 就是apk程序的源码文件目录  。
	自此得到我们需要的class文件，根据class文件可进行我们需要的操作

Continually updated…