The Mach-O format used by iOS and macOS for shared libraries. This contains the compiled C, C++, or Objective-C/Swift code you want to run inside the app.
Allows you to create a Logos tweak project in Xcode, which automatically handles injection and resigning during build.
iOS requires valid code signatures. After modifying the binary, you must re-sign:
: A popular GUI tool for Windows and macOS. It allows you to select an IPA and a dylib, and it handles the injection and signing automatically during the sideloading process. Inject Dylib Into Ipa
Summary
In the world of iOS security research, penetration testing, and even tweak development, the ability to modify an existing iOS application is a critical skill. One of the most common techniques is into an .ipa file.
: With Xcode and command-line tools installed. Method 1: Using Automated Tools (Recommended) The Mach-O format used by iOS and macOS for shared libraries
Incorrect entitlements or dylib architecture (e.g., x86 instead of ARM64).
The compiled Mach-O dynamic library targeted for the correct iOS architecture (usually arm64 ). Step 1: Unpacking the IPA
If everything works, your dylib will be loaded when the app launches. iOS requires valid code signatures
Several projects automate the entire injection process:
: The compiled dynamic library you wish to inject (often extracted from .deb tweak files).