*本工具仅供技术分享、交流讨论，严禁用于非法用途。

关于appdecrypt

一直以来，iOS程序逆向分析的第一步是先寻找一台越狱的iOS或iPad OS设备，然后使用frida-ios-dump等工具进行动态脱壳。而动态脱壳必须要运行APP，如果APP里进行了越狱检测，那么很有可能无法进行脱壳。

appdecrypt是一款可以运行在iOS和macOS上的脱壳程序，该工具基于Swift 5实现其主要功能。可以在越狱的iPhone或者iPad上进行静态脱壳（无需运行APP）。

但appdecrypt强大的地方在于可以在装有M1芯片的Mac上对app进行脱壳，并且Mac无需关闭SIP，这样一来就完全不需要考虑越狱检测的事情，脱壳成功率大大提高。

功能介绍

Version 2.0

appdecrypt is a tool to make decrypt application encrypted binaries on macOS when SIP-enabled.

Examples:
    mac:
        appdecrypt /Applicaiton/Test.app /Users/admin/Desktop/Test.app
    iPhone:
        appdecrypt /var/containers/Bundle/Application/XXXXXX /tmp

USAGE: appdecrypt encryptMachO_Path decryptMachO_Path

ARGUMENTS:
  <encryptApp_Path>     The encrypt app file path.
  <decrypt_Path>        The path output file.

OPTIONS:
  -h, --help              Show help information.

使用方法

在装有 M1 CPU的Mac上

> git clone https://github.com/paradiseduo/appdecrypt.git
> cd appdecrypt
> chmod +x build-macOS_arm.sh
> ./build-macOS_arm.sh
> cd .build/release
> ./appdecrypt /Applicaiton/Test.app /Users/admin/Desktop/Test.app
Success to copy file.
Dump /Applications/Test.app/Wrapper/Test.app/Test Success
Dump /Applications/Test.app/Wrapper/Test.app/PlugIns/TestNotificationService.appex/TestNotificationService Success
Dump /Applications/Test.app/Wrapper/Test.app/Frameworks/trackerSDK.framework/trackerSDK Success
Dump /Applications/Test.app/Wrapper/Test.app/Frameworks/AgoraRtcKit.framework/AgoraRtcKit Success
> cd /Users/admin/Desktop/Test.app
> ls
WrappedBundle Wrapper
> cd Wrapper
> ls
BundleMetadata.plist Test.app            iTunesMetadata.plist

在越狱的iPhone上

> git clone https://github.com/paradiseduo/appdecrypt.git
> cd appdecrypt
> chmod +x build-iOS.sh
> ./build-iOS.sh
> scp -P 2222 global.xml root@127.0.0.1:/tmp
> cd .build/release
> scp -P 2222 appdecrypt root@127.0.0.1:/tmp

// In iPhone shell
> cd /tmp
> ldid -Sglobal.xml appdecrypt 
> ./appdecrypt /var/containers/Bundle/Application/23E4B0B4-7275-46CE-8EEA-18CADE61FDB8 /tmp
Success to copy file.
Dump /var/containers/Bundle/Application/23E4B0B4-7275-46CE-8EEA-18CADE61FDB8/Aweme.app/Aweme Success
Dump /var/containers/Bundle/Application/23E4B0B4-7275-46CE-8EEA-18CADE61FDB8/Aweme.app/PlugIns/AwemeDYShareExtension.appex/AwemeDYShareExtension Success
Dump /var/containers/Bundle/Application/23E4B0B4-7275-46CE-8EEA-18CADE61FDB8/Aweme.app/PlugIns/AwemeNotificationService.appex/AwemeNotificationService Success
Dump /var/containers/Bundle/Application/23E4B0B4-7275-46CE-8EEA-18CADE61FDB8/Aweme.app/PlugIns/AwemeWidgetExtension.appex/AwemeWidgetExtension Success
Dump /var/containers/Bundle/Application/23E4B0B4-7275-46CE-8EEA-18CADE61FDB8/Aweme.app/PlugIns/AWEVideoWidget.appex/AWEVideoWidget Success
Dump /var/containers/Bundle/Application/23E4B0B4-7275-46CE-8EEA-18CADE61FDB8/Aweme.app/PlugIns/AwemeBroadcastExtension.appex/AwemeBroadcastExtension Success
Dump /var/containers/Bundle/Application/23E4B0B4-7275-46CE-8EEA-18CADE61FDB8/Aweme.app/PlugIns/AWEFriendsWidgets.appex/AWEFriendsWidgets Success
Dump /var/containers/Bundle/Application/23E4B0B4-7275-46CE-8EEA-18CADE61FDB8/Aweme.app/PlugIns/AwemeVideoNotification.appex/AwemeVideoNotification Success
Dump /var/containers/Bundle/Application/23E4B0B4-7275-46CE-8EEA-18CADE61FDB8/Aweme.app/Frameworks/ByteRtcEngineKit.framework/ByteRtcEngineKit Success
Dump /var/containers/Bundle/Application/23E4B0B4-7275-46CE-8EEA-18CADE61FDB8/Aweme.app/Frameworks/byteaudio.framework/byteaudio Success
> ls
Payload/
> cd Payload
> ls
Aweme.app/  BundleMetadata.plist  iTunesMetadata.plist

项目地址

https://github.com/paradiseduo/appdecrypt