APK decompilation goes beyond advertising secrets, and apk decompilation secrets

APK decompilation goes beyond advertising secrets, and apk decompilation secrets
Decompile APK to Advertisement
Procedure:

1. Download apktool

: Https://code.google.com/p/android-apktool/downloads/list

2. decompile the apk using apktool. Enter the following command in the command line: apktool. bat d-f aaa.apk (apk path) decompile the APK File

3. start modifying the XML layout File

First, we enter the decompiled folder.

Go to the C: \ apk \ com. youmi. android. sample \ res \ layout directory.

Open activity_ad.xml in Notepad (Note: Different program advertisements are in different files. You can check that other files are in xml files under the res \ layout directory .)

The following code is displayed:

<LinearLayout

Android: id = "@ + id/adLayout"

Android: layout_width = "fill_parent"

Android: layout_height = "wrap_content"

Android: layout_alignParentBottom = "true"

Android: gravity = "center_horizontal"

Android: orientation = "horizontal"

>

This code is used to display advertisements. We can change it

<LinearLayout

Android: id = "@ + id/adLayout"

Android: layout_width = "fill_parent"

Android: layout_height = "wrap_content"

Android: layout_alignParentBottom = "true"

Android: gravity = "center_horizontal"

Android: orientation = "horizontal"

Android: visibility = "gone"

>

In this way, the advertisement is hidden.

4. Use apktool to compile the modified Code into APK and enter apktool. bat B aaa (the folder you compiled)

5. Remember to sign the new APK.

Sign apk file: jarsigner-keystore test. keystore-storepass password-verbose TestApp-unsigned.apk name_alias

 

Appendix

Jarsigner command details

[-Keystore <url>] keystore location

[-Storepass <password>] password used for keystore integrity

[-Storetype <type>] keystore type

[-Keypass <password>] private key password (if different)

[-Sigfile <File>]. SF/. DSA file name

[-Signedjar <File>] Name of the signed JAR File

[-Digestalg <algorithm>] Name of the digest algorithm

[-Sigalg <algorithm>] signature algorithm name

[-Verify] verify the signed JAR File

[-Verbose] Output details during signature/Verification

[-Certs] outputs details and displays the certificate during verification

[-Tsa <url>] Location of the timestamp Mechanism

[-Tsacert <alias>] Public Key Certificate of the time stamp organization

[-Altsigner <class>] Class Name of the alternative signature mechanism

[-Altsignerpath <path list>] Location of the alternative signature mechanism

[-Internalsf] contains the. SF file in the signature block.

[-Sectionsonly] does not calculate the hash of the entire list

[-Protected] keystore protected authentication path

[-ProviderName <Name>] provider name

[-ProviderClass <class> name of the encryption service provider

[-ProviderArg <parameter>]... main class file and constructor Parameters