Dylib Injection Guide

: It uses vm_allocate() to carve out an empty chunk of memory inside the victim process.

: The operating system will refuse to load any dynamic library unless it is signed by either Apple or the exact same Team ID as the host binary. This cleanly breaks basic dylib hijacking and environment variable injection attacks, as a malicious dylib signed by an outside entity will cause the process to instantly crash at launch. dylib injection

Furthermore, the ubiquity of code signing acts as a powerful deterrent. Since the advent of macOS 10.15 (Catalina), running unsigned or improperly signed code has become difficult. Hardened Runtime, an extension of code signing, specifically prevents the loading of libraries that are not signed by the same developer team as the main executable or lack a valid cryptographic ticket. If an application attempts to load a foreign library, the operating system kills the process. : It uses vm_allocate() to carve out an