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// arsenal·Password CrackingIntermediateFOSS

Hashcat

The fastest open-source password recovery tool — GPU acceleration on every hash mode.

Password Cracking

$ hashcat --help

Hashcat

Hashcat logo
Hashcat logoWikimedia Commons

// what it is

Description

atom's brilliant cross-platform cracker with native GPU support via OpenCL/CUDA. Mode numbers (`-m 0`, `-m 1000`, `-m 1800`) select the algorithm; attack modes (`-a 0`, `-a 3`) select the strategy. The reason no modern password cracking session uses anything else.

// use cases

What people use it for

  • Offline password hash cracking
  • Custom rule-based mutation attacks
  • Mask + brute combinations

// commands

The commands you'll type

NTLM dictionary

$ hashcat -m 1000 -a 0 ntds.txt rockyou.txt

MD5 with rule mutations

$ hashcat -m 0 -a 0 hashes.txt rockyou.txt -r rules/best64.rule

8-char alphanumeric mask

$ hashcat -m 1800 -a 3 hashes.txt ?l?l?l?l?d?d?d?d

// facts

category
Password Cracking
platforms
LIN · WIN · MAC
license
FOSS
difficulty
Intermediate

// related in Password Cracking