Unmasking the Unchangeable: The Quest for Immutable Bits on Linux! 🚀
In the SANS FOR577 course, we delve into Linux system triage, using tools and custom scripts. I once faced an attacker using an LD_PRELOAD rootkit and setting the immutable bit on files. To tackle this, I created a Python script that identifies files with the immutable bit. Check it out in my GitHub script repo!

Hot Take:
Why manually triage a Linux system when you can automate the detective work? This cybersecurity Sherlock Holmes script is like having a magnifying glass for those sneaky immutable files. Miss Marple, eat your heart out!
Key Points:
- Triaging Linux systems can be tricky, especially when dealing with pesky rootkits.
- LD_PRELOAD rootkits are clever hackers’ favorites for compromising systems.
- Finding files with the immutable bit set can be a real ‘needle in a haystack’ challenge.
- A Python script now exists to ease the pain of finding immutable files.
- The script is available on GitHub for anyone who wants to join the script-savvy club.
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