metasploit-framework/modules/auxiliary/analyze/jtr_crack_fast.rb

##
# This module requires Metasploit: http//metasploit.com/download
# Current source: https://github.com/rapid7/metasploit-framework
##


require 'msf/core'

class Metasploit3 < Msf::Auxiliary

  include Msf::Auxiliary::JohnTheRipper

  def initialize
    super(
      'Name'        => 'John the Ripper Password Cracker (Fast Mode)',
      'Description' => %Q{
          This module uses John the Ripper to identify weak passwords that have been
        acquired as hashed files (loot) or raw LANMAN/NTLM hashes (hashdump). The goal
        of this module is to find trivial passwords in a short amount of time. To
        crack complex passwords or use large wordlists, John the Ripper should be
        used outside of Metasploit. This initial version just handles LM/NTLM credentials
        from hashdump and uses the standard wordlist and rules.
      },
      'Author'      => 'hdm',
      'License'     => MSF_LICENSE  # JtR itself is GPLv2, but this wrapper is MSF (BSD)
    )
  end

  def run
    cracker = new_john_cracker

    #generate our wordlist and close the file handle
    wordlist = wordlist_file
    wordlist.close
    print_status "Wordlist file written out to #{wordlist.path}"
    cracker.wordlist = wordlist.path
    cracker.hash_path = hash_file

    ['lm','nt'].each do |format|
      # dupe our original cracker so we can safely change options between each run
      cracker_instance = cracker.dup
      cracker_instance.format = format
      print_status "Cracking #{format} hashes in normal wordlist mode..."
      cracker_instance.crack do |line|
        print_status line.chomp
      end

      print_status "Cracking #{format} hashes in single mode..."
      cracker_instance.rules = 'single'
      cracker_instance.crack do |line|
        print_status line.chomp
      end

      print_status "Cracking #{format} hashes in incremental mode (All4)..."
      cracker_instance.rules = nil
      cracker_instance.wordlist = nil
      cracker_instance.incremental = 'All4'
      cracker_instance.crack do |line|
        print_status line.chomp
      end

      print_status "Cracking #{format} hashes in incremental mode (Digits5)..."
      cracker_instance.incremental = 'Digits5'
      cracker_instance.crack do |line|
        print_status line.chomp
      end

      print_status "Cracked Passwords this run:"
      cracker_instance.each_cracked_password do |password_line|
        password_line.chomp!
        next if password_line.blank?

        fields = password_line.split(":")
        # If we don't have an expected minimum number of fields, this is probably not a hash line
        next unless fields.count >=7
        username = fields.shift
        core_id = fields.pop
        4.times{ fields.pop }
        password = fields.join(':')

        print_good "#{username}:#{password}:#{core_id}"
        #create_cracked_credential( username: username, password: password, core_id: core_id)
      end
    end
  end

  def hash_file
    hashlist = Rex::Quickfile.new("hashes_tmp")
    Metasploit::Credential::NTLMHash.joins(:cores).where(metasploit_credential_cores: { workspace_id: myworkspace.id } ).each do |hash|
      hash.cores.each do |core|
        user = core.public.username
        hash_string = "#{hash.data}"
        id = core.id
        hashlist.puts "#{user}:#{id}:#{hash_string}:::#{id}"
      end
    end
    hashlist.close
    print_status "Hashes Written out to #{hashlist.path}"
    hashlist.path
  end
end