Inject Dylib Into Ipa

To load the dylib, you need to update the IPA's dyld load libraries. You can do this by adding the following line to the IPA's Info.plist file:

<key>DYLoadLibraries</key>
<array>
    <string>dylib.dylib</string>
</array>

Alternatively, you can use a tool like install_name_tool to update the load libraries:

install_name_tool -add_rpath @executable_path/Frameworks /path/to/output/folder/Payload/app.app/app

Apple has implemented multiple defenses against unauthorized dylib injection: Inject Dylib Into Ipa

To bypass these, attackers resort to more advanced techniques: using dlopen() at runtime (if a writable segment exists), patching dyld itself on jailbroken devices, or using ptrace and syscall hooks to evade detection.

You can install the new IPA using:

If everything works, your dylib will be loaded when the app launches.

Apps downloaded from the App Store are encrypted with FairPlay DRM. You cannot directly modify an encrypted IPA. You must first decrypt it (often using tools like frida-ios-dump or Clutch on a jailbroken device). To load the dylib, you need to update

Before starting, you need:

Install optool via GitHub:

git clone https://github.com/alexzielenski/optool.git
cd optool && xcodebuild
# Copy the binary to /usr/local/bin