乌云网看到一篇文章讲述hashcat的使用简介(戳这里),对使用字典破解MD5内容
简单在kali上尝试了一下。
(1)首先查看了下hashcat的帮助文档,简单截取了其中的部分常用说明。
hashcat, advanced password recovery
Usage: hashcat [options] hashfile [mask|wordfiles|directories]
=======
Options
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* General:
-m, --hash-type=NUM Hash-type, see references below
-a, --attack-mode=NUM Attack-mode, see references below
-V, --version Print version
-h, --help Print help
--quiet Suppress output
* Attack modes:
0 = Straight(字典破解)
1 = Combination
2 = Toggle-Case
3 = Brute-force
4 = Permutation
5 = Table-Lookup
8 = Prince
* Hash types:
0 = MD5
10 = md5($pass.$salt)
20 = md5($salt.$pass)
30 = md5(unicode($pass).$salt)
40 = md5($salt.unicode($pass))
50 = HMAC-MD5 (key = $pass)
60 = HMAC-MD5 (key = $salt)
...
(2)参考上述命令格式,输入以下内容
root@kali2:~/Desktop# hashcat -a -m test.txt superdict.txt
其中
- -a 0 代表使用字典破解模式;
- -m 0代表Hash Type为md5;
- test.txt里保存要破解的Hash值;
root@kali2:~/Desktop# cat test.txt
CCFF985ACBE948354486FE49BD91C2EB
cf7be73c856c99c0fe02a78a562375c5
- superdict.txt代表字典文件
root@kali2:~/Desktop# head superdict.txt
feitong!@#
abc123!@#
sh%#!
nl123456
sy8106237
%null%
admin
administrator
administrators
(3)开始破解,以下红体加粗的一行数据说明已经被成功破解,值为wolegequ
root@kali2:~/Desktop# hashcat -a -m test.txt superdict.txt
Initializing hashcat v2. with threads and 32mb segment-size... Added hashes from file test.txt: ( salts) cf7be73c856c99c0fe02a78a562375c5:wolegequ
[s]tatus [p]ause [r]esume [b]ypass [q]uit => Input.Mode: Dict (superdict.txt)
Index.....: / (segment), (words), (bytes)
Recovered.: / hashes, / salts
Speed/sec.: 4.54M plains, 4.54M words
Progress..: / (100.00%)
Running...: --:--:--:--
Estimated.: --:--:--:-- Started: Fri Jun ::
Stopped: Fri Jun ::
(4)注意事项
- 指定保存hash文件还有字典文件的时候,linux环境下不要忘记文件路径
- 破解成功的概率取决于你的字典是否给力,因此选个给力的字典很有必要。