A very fast network logon cracker which support many different services. See feature sets and services coverage page - incl. a speed comparison against ncrack and medusa

Current Version: 8.1 Last update 2014-12-08

 [0x00] News and Changelog

        Check out the feature sets and services coverage page - including a speed comparison against ncrack and medusa (yes, we win :-) )
        Development just moved to a public github repository:
        There is a new section below for online tutorials.
        Read below for Linux compilation notes.

        CHANGELOG for 8.1
        ! Development moved to a public github repository:
        * David Maciejak, my co-maintainer moved to a different job and country and can not help with Hydra anymore - sadly! Wish you all the best!
        * Added patch from Ander Juaristi which adds h/H header options for http-form-*, great work, thanks!
        * Found login:password combinations are now printed with the name specified (hostname or IP), not always IP
        * Fixed the -M option, works now with many many targets :-)
        * -M option now supports ports, add a colon in between: "host:port", or, if IPv6, "[ipv6ipaddress]:port"
        * Fixed for cisco-enable if an intial Login/Password is used (thanks to joswr1te for reporting)
        * Added patch by tux-mind for better MySQL compilation and an Android patches and Makefile. Thanks!
        * Added xhydra gtk patches by Petar Kaleychev to support -h, -U, -f, -F, -q and -e r options, thanks!
        * Added patch for teamspeak to better identify server errors and auth failures (thanks to Petar Kaleychev)
        * Fixed a crash in the cisco module (thanks to Anatoly Mamaev for reporting)
        * Small fix for HTTP form module for redirect pages where a S= string match would not work (thanks to mkosmach for reporting)
        * Updated configure to detect subversion packages on current Cygwin
        * Fixed RDP module to support the port option (thanks to and.enshin(at)

	You can also take a look at the full CHANGES file

 [0x01] Introduction

	Welcome to the mini website of the THC Hydra project.

	Number one of the biggest security holes are passwords, as every password security study shows.
	Hydra is a parallized login cracker which supports numerous protocols to attack. New modules
	are easy to add, beside that, it is flexible and very fast.

        Hydra was tested to compile on Linux, Windows/Cygwin, Solaris 11, FreeBSD 8.1, OpenBSD, OSX,
        QNX/Blackberry, and is made available under GPLv3 with a special OpenSSL license expansion.

	Currently this tool supports:
	  Asterisk, AFP, Cisco AAA, Cisco auth, Cisco enable, CVS, Firebird, FTP, HTTP-FORM-GET, HTTP-FORM-POST,
	  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, S7-300, SAP/R3, SIP, SMB, SMTP, SMTP Enum,
	  SNMP, SOCKS5, SSH (v1 and v2), Subversion, Teamspeak (TS2), Telnet, VMware-Auth, VNC and XMPP.

        For HTTP, POP3, IMAP and SMTP, several login mechanisms like plain and MD5 digest etc. are supported.

	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.

        The program was written van Hauser and is additiionally supported by David Maciejak.

 [0x02] Screenshots

	(1) Target selection

	(2) Login/Password setup

	(3) Hydra start and output

 [0x03] Documentation 
	Hydra comes with a rather long README file that describes the
	details about the usage and special options.
	But sometimes detailed online help can vastly improve your efficency.
	The following links on the global internet are a recommended read.
          General usage and options:

          HTTP basic auth:

          HTTP form based auth:

          Multiple protocols:
        For those people testing with DVWA, this is what you want:
          hydra -l admin -p password   http-get-form "/dvwa/login.php:username=^USER^&password=^PASS^&submit=Login:Login failed"

	If you find other good ones, just email them in ( vh(at)thc(dot)org ).

 [0x04] Disclaimer

	1. Please do not use in military or secret service organizations or for illegal purposes.
	2. The Affero General Public License Version 3 (AGPLv3) applies to this code.
	3. A special license expansion for OpenSSL is included which is required for the Debian people

 [0x05] The Art of Downloading: Source and Binaries
	   The source code of state-of-the-art Hydra: hydra-8.1.tar.gz
	   (compiles on all UNIX based platforms - even MacOS X, Cygwin on Windows, ARM-Linux, Android, iPhone, Blackberry 10, etc.)

           You can download and compile the current development version of hydra always in its public GITHUB repository:
  by either
             svn co
             git clone
           Note that this is the development state! New features - and new bugs. Things might not work!

	3. The source code of an old, deprecated version of Hydra ONLY in case v7.x gives you problems on unusual and old platforms:

	4. The Win32/Cywin binary release: --- not anymore ---
	   Install cygwin from
	   and compile it yourself. If you do not have cygwin installed - how
	   do you think you will do proper securiy testing? duh ...

        5. ARM and Palm binaries here are old and not longer maintained:
	     ARM:  hydra-5.0-arm.tar.gz

 [0x06] Compilation Help

        Hydra compiles fine on all platforms that have gcc - Linux, all BSD, Mac OS/X, Cygwin on Windows, Solaris, etc.
        It should even compile on historical SunOS, Ultrix etc. platforms :-)
        There are many optional modules for network protocols like SSH, SVN etc. that require libraries.
        If they are not found, these optional libraries will not be supported in your binary.
        If you are on Linux, the following commands install all necessary libraries:
        Ubuntu/Debian:  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 libncurses5-dev
        Redhat/Fedora:  yum install openssl-devel pcre-devel ncpfs-devel postgresql-devel libssh-devel subversion-devel libncurses-devel
        OpenSuSE:       zypper install libopenssl-devel pcre-devel libidn-devel ncpfs-devel libssh-devel postgresql-devel subversion-devel libncurses-devel
        This enables all optional modules and features with the exception of Oracle, SAP R/3 and the
        Apple filing protocol - which you will need to download and install from the vendor's web sites.
        For Oracle this is (install the basic and SDK packages):

        For all other Linux derivates and BSD based systems, use the system software installer and look for
        similar named libraries like in the command above.
        In all other cases you have to download all source libraries and compile them manually; 
        the configure script output tells you what is missing and where to get it from.

 [0x07] Development & Contributions

	Your contributions are more than welcomed!
	If you find bugs, coded enhancements or wrote a new attack module for a service,
	please send them to vh (at) thc (dot) org

	Interesting attack modules would be:
	(or anything else you might be able to do (and is not there yet))
	Please note that you can also download and commit via github:

 Comments and suggestions are welcome.

 Yours sincerly,

 van Hauser
 The Hackers Choice