Restoring Dyld Memory Loading

This blog post explains how recent macOS/dyld behavior persists Mach-O bundles created via NSCreateObjectFileImageFromMemory to temporary files and demonstrates a technique to intercept dyld (patching the mmap/pread/fcntl service calls) and mock I/O so a malicious or red-team payload can be kept in memory or have on-disk reads dynamically swapped; the write-up includes ARM64 patching details, sample hooking and mock implementations, caveats about code-signing/entitlements on Apple Silicon, and practical PoC notes.