H Y D R A
(c) 2001-2011 by van Hauser / THC
<vh@thc.org> http://www.thc.org
co-maintained by David (dot) Maciejak @ gmail (dot) com
BFG code by Jan Dlabal <dlabaljan@gmail.com>
Licened under GPLv3 (see LICENSE file)
INTRODUCTION
------------
Number one of the biggest security holes are passwords, as every password
security study shows.
This tool is a proof of concept code, to give researchers and security
consultants the possiblity to show how easy it would be to gain unauthorized
access from remote to a system.
THIS TOOL IS FOR LEGAL PURPOSES ONLY!
There are already several login hacker tools available, however none does
either support more than one protocol to attack or support parallized
connects.
It was tested to compile cleanly on Linux, Windows/Cygwin, Solaris, FreeBSD and OSX.
Currently this tool supports:
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, ICQ, IMAP, IRC, LDAP, MS-SQL, MYSQL, NCP, NNTP, PCNFS, POP3,
POSTGRES, REXEC, SAP/R3, SMB,SMBNT, SMTP, SNMP, SOCKS5, SSH(v1 and v2),
Subversion, Teamspeak (TS2), TELNET, VMware-Auth, VNC and XMPP.
However the module engine for new services is very easy so it won't take a
long time until even more services are supported.
Planned are: Oracle and more.
Your help in writing these modules is highly appreciated!! :-)
HOW TO COMPILE
--------------
For hydra, just type:
./configure
make
make install
If you need ssh module support, you have to setup libssh on your system,
get it from http://www.libssh.org, for ssh v1 support you also need to add
"-DWITH_SSH1=On" option in the cmake command line.
SUPPORTED PLATFORMS
-------------------
All UNIX platforms (linux, *bsd, solaris, etc.)
Mac OS/X
Windows with Cygwin (both ipv4 and ipv6)
Mobile systems with ARM processors and Linux (e.g. Zaurus, iPaq)
PalmOS
HOW TO USE
----------
Type "./configure", followed by "make" to compile hydra and then
"./hydra -h" to see the command line options.
You make also type "make install" to install hydra to /usr/local/bin.
Note that NO login/password file is included. Generate them yourself.
For Linux users, a GTK gui is available, try "./xhydra"
SPECIAL OPTIONS FOR MODULES
---------------------------
Via the third command line parameter (TARGET SERVICE OPTIONAL) or the -m
commandline option, you can pass one option to a module.
Only some modules actually use this, a few require this.
Here is the complete list:
service module optional parameter
============== =================================================
http[s]-{head|get}
specifies the page to authentication at (REQUIRED)
Value can be "/secret" or "http://bla.com/foo/bar" or
"https://test.com:8080/members"
http-proxy specifies the page to authenticate at (OPTIONAL,
default is http://www.microsoft.com/).
Basic, DIGEST-MD5, NTLM auths are supported.
http[s]-{get|post}-form
specifies the page and the parameters for the web form.
the keyword "^USER^" is replaced with the login and
^PASS^ with the password. The parameters are seperated
by a colon.
syntax: <url>:<form parameters>:<failure string>
e.g.: /login.php:user=^USER^&pass=^PASS^&mid=123:incorrect
smbnt value [L,LH,D,DH,B,BH] (optional, default is 'Both')
(L) Check local accounts, (D) Domain Accounts, (B) Either
(H) interpret passwords as NTLM hashes
ldap2, ldap3[-{cram|digest}md5]
specifies the DN (OPTIONAL, you can also specify the DN
as login when Simple auth method is used).
The keyword "^USER^" is replaced with the login.
Simple method has 3 operation modes: anonymous
(no user no pass), unauthenticated (user but no pass),
user/pass authenticated (user and pass). So don't forget to
set empty string as user/pass to test all modes.
cvs repository name to attack (OPTIONAL, default is /root)
cisco-enable specifies the logon password for the cisco device (OPTIONAL)
Note: if you have an AAA, use the -l option for the username
and the optional parameter for the password of the user.
sapr3 specifies the client id, a number between 0 and 99 (REQUIRED)
telnet specified the string which is displayed after a successful
login (case insensitive), use if the default in the telnet
module produces too many false positives (OPTIONAL)
postgres database name to attack (OPTIONAL, default is template1)
mysql database name to attack (OPTIONAL, default is mysql)
firebird database name to attack (OPTIONAL, default is
C:\Program Files\Firebird\Firebird_2_0\security2.fdb
ncp the full context can be passed for example ".O=cx"
svn repository name to attack (OPTIONAL, default is trunk)
smtp 5 authentication types are supported, default is LOGIN,
also available PLAIN, CRAM-MD5, DIGEST-MD5, NTLM
imap 9 authentication types are supported, default is CLEAR,
also available LOGIN, PLAIN, CRAM-MD5, CRAM-SHA1,
CRAM-SHA256, DIGEST-MD5, NTLM, SCRAM-SHA1
pop3 9 authentication types are supported default is CLEAR or
APOP depending on the server answer, also available LOGIN,
PLAIN, CRAM-MD5, CRAM-SHA1, CRAM-SHA256, DIGEST-MD5, NTLM
nntp 6 authentication types are supported default is USER,
also available LOGIN, PLAIN, CRAM-MD5, DIGEST-MD5, NTLM
xmpp 5 authentication types are supported, default is LOGIN,
also available PLAIN, CRAM-MD5, DIGEST-MD5, SCRAM-SHA1
irc specifies the general server password (OPTIONAL, if the
server is requiring one and none is passed the password
from -p/-P will be used
An example for how to use this with the www module to hand over the web page
to authenticate to (appended as last option):
hydra -l jdoe -P /tmp/passlist www.attack.com http /members/
is the same like (with the -m option):
hydra -m /members/ -l jdoe -P /tmp/passlist www.attack.com http
other example:
hydra -m LH -l administrator -P sam.dump nt.microsoft.com smbnt
still other example:
hydra -l gast -p gast -m 6 -s 3200 sapr3.sap.com sapr3
or
hydra -l bla -p blubb ms.com telnet "welcome hacker"
RESTORING AN ABORTED/CRASHED SESSION
------------------------------------
When hydra is aborted with Control-C, killed or crashs, it leavs a
"hydra.restore" file behind which contains all necessary information to
restore the session. This session file is written every 5 minutes.
NOTE: if you are cracking parallel hosts (-M option), this feature doesnt
work, and is therefore disabled!
NOTE: the hydra.restore file can NOT be copied to a different platform (e.g.
from little indian to big indian, or from solaris to aix)
HOW TO SCAN/CRACK OVER A PROXY
------------------------------
The environment variable HYDRA_PROXY_HTTP defines the web proxy (this works
just for the http/www service!).
The following syntax is valid:
HYDRA_PROXY_HTTP="http://123.45.67.89:8080/"
For all other services, use the HYDRA_PROXY_CONNECT variable to scan/crack
via a web proxy's CONNECT call. It uses the same syntax. eg:
HYDRA_PROXY_CONNECT=proxy.anonymizer.com:8000
If you require authentication for the proxy, use the HYDRA_PROXY_AUTH
environment variable:
HYDRA_PROXY_AUTH="the_login:the_password"
ADDITIONAL HINTS
----------------
* uniq your dictionary files! this can save you a lot of time :-)
cat words.txt | sort | uniq > dictionary.txt
* if you know that the target is using a password policy (allowing users
only to choose password with a minimum length of 6, containing a least one
letter and one number, etc. use the tool pw-inspector which comes along
with the hydra package to reduce the password list:
cat dictionary.txt | pw-inspector -m 6 -c 2 -n > passlist.txt
SPEED
-----
through the parallizing feature, this password cracker tool can be very
fast, however it depends on the protocol. The fastest are generally POP3
and FTP.
Experiment with the task option (-t) to speed thinks up! The higher - the
faster ;-) (but too high, and it disables the service)
STATISTICS
----------
Run against a SuSE Linux 7.2 on localhost with a "-C FILE" containing
295 entries (294 tries invalid logins, 1 valid). Every test was run three
times (only for "1 task" just once), and the average noted down.
P A R A L L E L T A S K S
SERVICE 1 4 8 16 32 50 64 100 128
------- --------------------------------------------------------------------
telnet 23:20 5:58 2:58 1:34 1:05 0:33 0:45* 0:25* 0:55*
ftp 45:54 11:51 5:54 3:06 1:25 0:58 0:46 0:29 0:32
pop3 92:10 27:16 13:56 6:42 2:55 1:57 1:24 1:14 0:50
imap 31:05 7:41 3:51 1:58 1:01 0:39 0:32 0:25 0:21
(*)
Note: telnet timings can be VERY different for 64 to 128 tasks! e.g. with
128 tasks, running four times resulted in timings between 28 and 97 seconds!
The reason for this is unknown...
guesses per task (rounded up):
295 74 38 19 10 6 5 3 3
guesses possible per connect (depends on the server software and config):
telnet 4
ftp 6
pop3 1
imap 3
BUGS & FEATURES
---------------
Hydra:
Email me or David if you find bugs or if you have written a new module.
vh@thc.org (and put "antispam" in the subject line)
David (dot) Maciejak @ gmail (dot) com
Type Bits/KeyID Date User ID
pub 2048/CDD6A571 1998/04/27 van Hauser / THC <vh@reptile.rug.ac.be>
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