modules/auxiliary/analyze/crack_windows.rb
##
# This module requires Metasploit: https://metasploit.com/download
# Current source: https://github.com/rapid7/metasploit-framework
##
class MetasploitModule < Msf::Auxiliary
include Msf::Auxiliary::PasswordCracker
include Msf::Exploit::Deprecated
moved_from 'auxiliary/analyze/jtr_windows_fast'
def initialize
super(
'Name' => 'Password Cracker: Windows',
'Description' => %(
This module uses John the Ripper or Hashcat to identify weak passwords that have been
acquired from Windows systems.
LANMAN is format 3000 in hashcat.
NTLM is format 1000 in hashcat.
MSCASH is format 1100 in hashcat.
MSCASH2 is format 2100 in hashcat.
NetNTLM is format 5500 in hashcat.
NetNTLMv2 is format 5600 in hashcat.
),
'Author' => [
'theLightCosine',
'hdm',
'h00die' # hashcat integration
],
'License' => MSF_LICENSE, # JtR itself is GPLv2, but this wrapper is MSF (BSD)
'Actions' => [
['john', { 'Description' => 'Use John the Ripper' }],
['hashcat', { 'Description' => 'Use Hashcat' }],
],
'DefaultAction' => 'john',
)
register_options(
[
OptBool.new('NTLM', [false, 'Crack NTLM hashes', true]),
OptBool.new('LANMAN', [false, 'Crack LANMAN hashes', true]),
OptBool.new('MSCASH', [false, 'Crack M$ CASH hashes (1 and 2)', true]),
OptBool.new('NETNTLM', [false, 'Crack NetNTLM', true]),
OptBool.new('NETNTLMV2', [false, 'Crack NetNTLMv2', true]),
OptBool.new('INCREMENTAL', [false, 'Run in incremental mode', true]),
OptBool.new('WORDLIST', [false, 'Run in wordlist mode', true]),
OptBool.new('NORMAL', [false, 'Run in normal mode (John the Ripper only)', true])
]
)
end
def half_lm_regex
# ^\?{7} is ??????? which is JTR format, so password would be ???????D
# ^[notfound] is hashcat format, so password would be [notfound]D
/^[?{7}|\[notfound\]]/
end
def show_command(cracker_instance)
return unless datastore['ShowCommand']
if action.name == 'john'
cmd = cracker_instance.john_crack_command
elsif action.name == 'hashcat'
cmd = cracker_instance.hashcat_crack_command
end
print_status(" Cracking Command: #{cmd.join(' ')}")
end
def run
# we have to overload the process_cracker_results from password_cracker.rb since LANMAN
# is a special case where we may need to do some combining
def process_cracker_results(results, cred)
return results if cred['core_id'].nil? # make sure we have good data
# make sure we dont add the same one again
if results.select { |r| r.first == cred['core_id'] }.empty?
results << [cred['core_id'], cred['hash_type'], cred['username'], cred['password'], cred['method']]
end
# however, a special case for LANMAN where it may come back as ???????D (jtr) or [notfound]D (hashcat)
# we want to overwrite the one that was there *if* we have something better.
results.map! do |r|
if r.first == cred['core_id'] &&
r[3] =~ half_lm_regex
[cred['core_id'], cred['hash_type'], cred['username'], cred['password'], cred['method']]
else
r
end
end
create_cracked_credential(username: cred['username'], password: cred['password'], core_id: cred['core_id'])
results
end
def check_results(passwords, results, hash_type, method)
passwords.each do |password_line|
password_line.chomp!
next if password_line.blank?
fields = password_line.split(':')
cred = { 'hash_type' => hash_type, 'method' => method }
if action.name == 'john'
# If we don't have an expected minimum number of fields, this is probably not a hash line
next unless fields.count > 2
cred['username'] = fields.shift
cred['core_id'] = fields.pop
case hash_type
when 'mscash', 'mscash2', 'netntlm', 'netntlmv2'
cred['password'] = fields.shift
when 'lm', 'nt'
# If we don't have an expected minimum number of fields, this is probably not a NTLM hash
next unless fields.count >= 6
2.times { fields.pop } # Get rid of extra :
nt_hash = fields.pop
lm_hash = fields.pop
id = fields.pop
password = fields.join(':') # Anything left must be the password. This accounts for passwords with semi-colons in it
if hash_type == 'lm' && password.blank?
if nt_hash == Metasploit::Credential::NTLMHash::BLANK_NT_HASH
password = ''
else
next
end
end
# password can be nil if the hash is broken (i.e., the NT and
# LM sides don't actually match) or if john was only able to
# crack one half of the LM hash. In the latter case, we'll
# have a line like:
# username:???????WORD:...:...:::
cred['password'] = john_lm_upper_to_ntlm(password, nt_hash)
end
next if cred['password'].nil?
elsif action.name == 'hashcat'
next unless fields.count >= 2
cred['core_id'] = fields.shift
if ['netntlm', 'netntlmv2'].include? hash_type
# we could grab the username here, but no need since we grab it later based on core_id, which is safer
6.times { fields.shift } # Get rid of a bunch of extra fields
else
cred['hash'] = fields.shift
end
fields.pop if hash_type == 'mscash' # Get rid of username
cred['password'] = fields.join(':') # Anything left must be the password. This accounts for passwords with semi-colons in it
next if cred['core_id'].include?("Hashfile '") && cred['core_id'].include?("' on line ") # skip error lines
# we don't have the username since we overloaded it with the core_id (since its a better fit for us)
# so we can now just go grab the username from the DB
cred['username'] = framework.db.creds(workspace: myworkspace, id: cred['core_id'])[0].public.username
end
results = process_cracker_results(results, cred)
end
results
end
tbl = cracker_results_table
# array of hashes in jtr_format in the db, converted to an OR combined regex
hash_types_to_crack = []
hash_types_to_crack << 'lm' if datastore['LANMAN']
hash_types_to_crack << 'nt' if datastore['NTLM']
hash_types_to_crack << 'mscash' if datastore['MSCASH']
hash_types_to_crack << 'mscash2' if datastore['MSCASH']
hash_types_to_crack << 'netntlm' if datastore['NETNTLM']
hash_types_to_crack << 'netntlmv2' if datastore['NETNTLMV2']
jobs_to_do = []
# build our job list
hash_types_to_crack.each do |hash_type|
job = hash_job(hash_type, action.name)
if job.nil?
print_status("No #{hash_type} found to crack")
else
jobs_to_do << job
end
end
# bail early of no jobs to do
if jobs_to_do.empty?
print_good("No uncracked password hashes found for: #{hash_types_to_crack.join(', ')}")
return
end
# array of arrays for cracked passwords.
# Inner array format: db_id, hash_type, username, password, method_of_crack
results = []
cracker = new_password_cracker(action.name)
# generate our wordlist and close the file handle.
wordlist = wordlist_file
unless wordlist
print_error('This module cannot run without a database connected. Use db_connect to connect to a database.')
return
end
wordlist.close
print_status "Wordlist file written out to #{wordlist.path}"
cleanup_files = [wordlist.path]
jobs_to_do.each do |job|
format = job['type']
hash_file = Rex::Quickfile.new("hashes_#{job['type']}_")
hash_file.puts job['formatted_hashlist']
hash_file.close
cracker.hash_path = hash_file.path
cleanup_files << hash_file.path
# dupe our original cracker so we can safely change options between each run
cracker_instance = cracker.dup
cracker_instance.format = format
if action.name == 'john'
cracker_instance.fork = datastore['FORK']
end
# first check if anything has already been cracked so we don't report it incorrectly
print_status "Checking #{format} hashes already cracked..."
results = check_results(cracker_instance.each_cracked_password, results, format, 'Already Cracked/POT')
vprint_good(append_results(tbl, results)) unless results.empty?
job['cred_ids_left_to_crack'] = job['cred_ids_left_to_crack'] - results.map { |i| i[0].to_i } # remove cracked hashes from the hash list
next if job['cred_ids_left_to_crack'].empty?
if action.name == 'john'
print_status "Cracking #{format} hashes in single mode..."
cracker_instance.mode_single(wordlist.path)
show_command cracker_instance
cracker_instance.crack do |line|
vprint_status line.chomp
end
results = check_results(cracker_instance.each_cracked_password, results, format, 'Single')
vprint_good(append_results(tbl, results)) unless results.empty?
job['cred_ids_left_to_crack'] = job['cred_ids_left_to_crack'] - results.map { |i| i[0].to_i } # remove cracked hashes from the hash list
next if job['cred_ids_left_to_crack'].empty?
if datastore['NORMAL']
print_status "Cracking #{format} hashes in normal mode..."
cracker_instance.mode_normal
show_command cracker_instance
cracker_instance.crack do |line|
vprint_status line.chomp
end
results = check_results(cracker_instance.each_cracked_password, results, format, 'Normal')
vprint_good(append_results(tbl, results)) unless results.empty?
job['cred_ids_left_to_crack'] = job['cred_ids_left_to_crack'] - results.map { |i| i[0].to_i } # remove cracked hashes from the hash list
next if job['cred_ids_left_to_crack'].empty?
end
end
if datastore['INCREMENTAL']
print_status "Cracking #{format} hashes in incremental mode..."
cracker_instance.mode_incremental
show_command cracker_instance
cracker_instance.crack do |line|
vprint_status line.chomp
end
results = check_results(cracker_instance.each_cracked_password, results, format, 'Incremental')
vprint_good(append_results(tbl, results)) unless results.empty?
job['cred_ids_left_to_crack'] = job['cred_ids_left_to_crack'] - results.map { |i| i[0].to_i } # remove cracked hashes from the hash list
next if job['cred_ids_left_to_crack'].empty?
end
if datastore['WORDLIST']
print_status "Cracking #{format} hashes in wordlist mode..."
cracker_instance.mode_wordlist(wordlist.path)
# Turn on KoreLogic rules if the user asked for it
if action.name == 'john' && datastore['KORELOGIC']
cracker_instance.rules = 'KoreLogicRules'
print_status 'Applying KoreLogic ruleset...'
end
show_command cracker_instance
cracker_instance.crack do |line|
vprint_status line.chomp
end
results = check_results(cracker_instance.each_cracked_password, results, format, 'Wordlist')
vprint_good(append_results(tbl, results)) unless results.empty?
job['cred_ids_left_to_crack'] = job['cred_ids_left_to_crack'] - results.map { |i| i[0].to_i } # remove cracked hashes from the hash list
next if job['cred_ids_left_to_crack'].empty?
end
# give a final print of results
print_good(append_results(tbl, results))
end
if datastore['DeleteTempFiles']
cleanup_files.each do |f|
File.delete(f)
end
end
end
end