"Android App development" Android APK anti-compilation confusing recompile

Anti-compilation tool : Summed up the Linux, Windows, Mac version, put together on the CSDN download;

-- CSDN :

[Email protected]:~/decompiler$ tree-l 2.├──linux│├──apktool│├──dex2jar-0.0.9.15│└──jd-gui├──mac│├──apk tool│├──dex2jar-0.0.9.15│└──jd-gui-0.3.5.osx.i686.dmg├──windows│├──apktool│├──dex2jar-0.0.9.15│└──jd- gui.exe└── Source    └──apktool-source.zip10 directories, 4 files

I. decompile to Java source code

1. Introduction of Tools

Dex2jar Introduction : Convert. dex or. class suffix files to. jar files;

-- Latest version : Currently the latest version 0.0.9.15;

-- official address (need to turn over the wall) : http://code.google.com/p/dex2jar/ ;

-- (need to turn over the wall) : http://code.google.com/p/dex2jar/downloads/list;

Jd-gui Introduction : Use this tool to view the Java code in the. jar;

-- official address : http://jd.benow.ca/ ;

2. Anti-compilation process

(1) Ubuntu system anti-compilation

A. get the. dex suffix file : Modify the apk file suffix to obtain the Class.dex file;

B. perform anti-compilation : Copy the Classes.dex to the Dex2jar directory and execute the ./d2j-dex2jar.sh classes.dex command;

-- Execution Results :

[Email protected]:~/decompiler/linux/dex2jar-0.0.9.15$./d2j-dex2jar.sh Classes.dex Dex2jar Classes.dex Classes-dex2jar.jar

c. View the source code in Jd-gui : Drag the Classes-dex2jar.jar file into the Jd-gui to view the source code;

3. Confusing Code

Note: Files that are copied directly from eclipse cannot be confused if you do not use a signature file for packaging.

(1) Configuring confusing files

Edit Progard.cfg :

-- file contents :

-optimizationpasses 5- Dontusemixedcaseclassnames-dontskipnonpubliclibraryclasses-dontpreverify-verbose-optimizations!code/ simplification/arithmetic,!field/*,!class/merging/* #组件相关的类不进行混淆, keep-keep public class * extends Android.app.activity-keep public class * extends Android.app.application-keep public class * extends Android.app.service-keep public class * extends Android.content.broadcastreceiver-keep public class * extends Android.content.contentprovider-keep public class * extends Android.app.backup.backupagenthelper-keep public class * Extends Android.preference.preference-keep public class com.android.vending.licensing.ilicensingservice# in all classes Native method does not confuse-keepclasseswithmembernames class * {native <methods>;} # The method name of the specified method for all classes is not confused-keepclasseswithmembers class * {public <init> (Android.content.Context, Android.util.AttributeSet);} #对全部类的指定方法的方法名不进行混淆-keepclasseswithmembers class * {public <init> (Android.content.Context, Android.util.AttributeSet, int);} # Keep Activity subclass-keepclassmembers class * extends android.app.Activity {public void * (Android.view.View);}    # The method names of the following specified methods are not confused for all classes of enum type enum-keepclassmembers enum * {public static **[] values (); public static * * VALUEOF (java.lang.String);} # classes that implement the Parcelable serialization interface do not confuse-keep class * Implements android.os.Parcelable {public static final Android.os.parcelable$cre Ator *;}

-- project.properties configuration obfuscation file :

Target=android-19proguard.config=proguard.cfg

(2) package apk file (Create new KeyStore)

A. set up a packaged project : Right-click the project Select Android Tools---Export Signed application package option, pop up the following dialog box, select the program to package, set it up Click Next;

B. Create KeyStore : Select Create New KeyStore, select a file, and then set the KeyStore user name and password;

- Location: KeyStore file;

-- Password : password;

-- Confirm : Confirm password, re-enter password;

c. Enter KeyStore details :

- alias: aliases;

-- Password : alias password;

-- Confirm : Confirm password;

-- validity (years) : expiry date, recommended 25 years;

-First and last name : developer name;

The following parameters may not be filled in

-- orgnizational Unit : Name of the organization;

-- orgnization : organization;

-City or location: cities;

State or provience : Provinces or States;

-- Country Code : country;

d. Select the apk file and pack : After clicking the Finish button, the package is finished;

(3) Pack the APK file (using an existing KeyStore file)

A. Select the packaged project : Right click on Project, select Android Tools---Export signed application package option;

B. Select signature file : Enter the signature file password;

c. Enter the alias password :

d. pack apk: Select the apk file to be packaged :

(4) Verifying the confusion effect

decompile : Change the apk file suffix to. zip, then remove the Classes.dex file to the Dex2jar root directory and execute the./d2j-dex2jar.sh classes.dex command;

[Email protected]:~/decompiler/linux/dex2jar-0.0.9.15$./d2j-dex2jar.sh Classes.dex Dex2jar Classes.dex Classes-dex2jar.jar

to view Java code in Jd-gui :

two. Apktools Anti-compilation

1. Apktools Introduction

Apktools Introduction :

-- Latest version : 2.0.0;

-- official website (need to turn over the wall) : https://code.google.com/p/android-apktool/ ;

-- new version : https://bitbucket.org/iBotPeaches/apktool/downloads ;

-- old version (need to turn over the wall) : https://code.google.com/p/android-apktool/downloads/list ;

files that need to be downloaded :

-- Apktool jar package : apktool1.5.2.tar.bz2

-- apktool boot tool (Linux) : apktool-install-linux-r05-ibot.tar.bz2

-- apktool boot tool (MAC) : apktool-install-macosx-r05-ibot.tar.bz2

-- apktool boot tool (wondows) : apktool-install-windows-r05-ibot.tar.bz2

2. Anti-compilation

to place the downloaded file in a file :

decompile : Put the apk file into the above directory and execute the command./apktool d wheelview.apk;

--Anti-compilation process:

[Email protected]:~/decompiler/linux/apktool$/apktool d wheelview.apk i:baksmaling ... I:loading Resource Table ... I:loaded.i:decoding Androidmanifest.xml with resources ... I:loading Resource table from file:/home/octopus/apktool/framework/1.apki:loaded.i:regular manifest Package ... I:decoding file-resources ... I:decoding Values */* xmls ... I:done.i:copying Assets and Libs ... [Email protected]:~/decompiler/linux/apktool$ lsaapt  apktool  apktool.jar  wheelview  wheelview.apk

-- Anti-compilation results: Anti-compilation results are in the Wheelview directory, res is a related resource file, Smali is the Smali assembly file;

3. recompile

Recompile command format :./apktool b apk Source directory apk file name;

-- Execute command :./apktool b wheelview wheelview1.apk, wheelview1.apk file can be generated;

[Email protected]:~/decompiler/linux/apktool$ lsaapt  apktool  apktool.jar  wheelview  wheelview.apk [email protected]:~/decompiler/linux/apktool$./apktool b wheelview WheelView1.apkI:Checking whether sources has Changed ... I:smaling ... I:checking whether resources has changed ... I:building Resources ... i:building apk file ... [Email protected]:~/decompiler/linux/apktool$ lsaapt  apktool  apktool.jar  wheelview  wheelview1.apk  wheelview.apk

"Android App development" Android APK anti-compilation confusing recompile