Ntlm-hash-decrypter Guide

Basic usage:

john --format=nt --wordlist=rockyou.txt hash.txt

Extract NTLM hash (Windows):

reg save hklm\sam sam.save
reg save hklm\system system.save
secretsdump.py -sam sam.save -system system.save LOCAL

Crack with Hashcat:

hashcat -m 1000 -a 0 hash.txt rockyou.txt
hashcat -m 1000 -a 3 hash.txt ?a?a?a?a?a?a?a?a

Crack with John:

john --format=nt --wordlist=rockyou.txt hash.txt

Check if hash is NTLM format: 32 hex chars → ^[a-fA-F0-9]32$ ntlm-hash-decrypter

To prepare a feature for an NTLM hash decrypter, we should consider what NTLM hashes are and how they are used, as well as the ethical and legal implications of creating such a tool.

Take a wordlist (e.g., rockyou.txt, SecLists) of millions of real passwords. Hash each one and compare. Basic usage: john --format=nt --wordlist=rockyou

Example wordlist snippet:

password
123456
admin
letmein
trustno1

Command with Hashcat:

hashcat -m 1000 -a 0 ntlm_hash.txt rockyou.txt