Recent Posts

0tH2026.2.0 Released

1 minute read

Zero the Hero (0tH) 2.0 is out. A Mach-O triage tool for macOS security work, focused on structural inspection and code-signing analysis, with both CLI and R...

Reading LC_CODE_SIGNATURE with 0tH

15 minute read

A deep, hands-on walkthrough of LC_CODE_SIGNATURE across three Mach-O binaries — from an ad-hoc do-nothing app to Safari’s full Apple-grade signature. We in...

More on registers: the ABI

7 minute read

In this lesson we examine what really happens when data moves through registers and execution jumps across routines. We introduce the ABI and AAPCS64, explai...