Anti-debug trick: `ptrace(PTRACE_TRACEME)` self-attach is a classic. Bypass it by patching the syscall return or hooking ptrace in a preload. For firmware, start with `binwalk -Me` then check for hardcoded keys in `.rodata`. Practical labs at bug404found: https://bug404found.com/?utm_source=mastodon&utm_medium=social&utm_campaign=awareness&utm_content=en #cybersec #infosec #security #reverseengineering #malware #firmware