14 February 2007 | 325,733 views

THC-Hydra – The Fast and Flexible Network Login Hacking Tool

Cybertroopers storming your ship?

THC-Hydra rocks, it’s pretty much the most up to date and currently developed password brute forcing tool around at the moment.

It supports a LOT of services and protocols too.

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


There are already several login hacker tools available, however none does either support more than one protocol to attack or support parallelized connects.

Currently this tool supports:

NNTP, PCNFS, ICQ, SAP/R3, Cisco auth, Cisco enable, SMTP-AUTH, SSH2, SNMP,
CVS, Cisco AAA.

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: SSH v1, Oracle and more…

This tool is a proof of concept code, to give researchers and security consultants the possibility to show how easy it would be to gain unauthorized access from remote to a system.

There is a lot more information contained in the README file here.

You can download Hydra here:


Compile and install (./configure; make; make install)

IF you want the windows version you can grab this Cygwin version:


More info is available here:

THC-Hydra Homepage


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31 Responses to “THC-Hydra – The Fast and Flexible Network Login Hacking Tool”

  1. Gouki 15 February 2007 at 2:06 am Permalink

    Ubuntu and Debian users have the pre-compiled packages here:


  2. Darknet 15 February 2007 at 5:29 am Permalink

    Gouki: Thanks that’ll be useful!

  3. matt 17 February 2007 at 10:01 pm Permalink

    Can someone tell me what i did wrong with the login file? I put hydra -L /matt/documents and setting/logins.txt -Anyone got an example to share or can someone provide some help? Thanks

  4. The Mesterious Stranger 24 April 2007 at 12:38 am Permalink

    I need help this wont run and i need a good bruteforcer…When i click on hydra a command prompt shows up then dissapers about .5 seconds later. What am i doing wrong?!?!?!?!?!?!?!??!?!?

  5. richard a 3 May 2007 at 8:00 pm Permalink

    i’m having the same problem as The Mysterious Stranger above. anybody know what were doing wrong? thanks

  6. onlyforfun 25 June 2007 at 12:44 pm Permalink

    hello,this is a good site for learing crack, thank you all.


  7. backbone 25 June 2007 at 1:18 pm Permalink

    The Mesterious Stranger

    The windows version has maybe no frontend… have you thought about this? the just start you command prompt and run it from there… a list of options should appear…

  8. Crazum 6 August 2007 at 9:04 pm Permalink

    i ran the command prompt, now what. i typed in ./configure and it says that it is unrecognized or something. please help. thanks.

  9. Maiku 2 February 2008 at 9:14 pm Permalink

    ummm no exe file?

  10. Pantagruel 2 February 2008 at 10:48 pm Permalink

    It’s *nix only, so get Cygwin to run it

  11. Maiku 2 February 2008 at 10:58 pm Permalink

    yeah figured that out a few minutes ago xD thanks!

  12. Alex 9 May 2008 at 7:49 pm Permalink

    i tried to download the hydra-5.3-win.zip on
    the THC-Hydra homepage, and my anti virus programm detected
    a virus, is this normal for the data??
    pls help me!

  13. Bogwitch 9 May 2008 at 8:49 pm Permalink

    It is very usual for hacking tools to be identified as malware. Considering hacking tools are developed by the hacking community, it would be wise to treat any tool you have acquired with a fair degree of suspicion. If you have the ability, tools and techniques to either examine the source code or monitor what the application is actually doing it would probably be best to avoid attempting to hack altogether until you can.
    Additionally, running any hacking tools on your production/ main workstation is a Bad Idea.

  14. Alex 10 May 2008 at 7:04 pm Permalink

    ok, thx for your advise!

  15. Alex 23 May 2008 at 1:07 pm Permalink

    now i have another problem,
    i downloaded cygwin, wrote the command, but it doesn’t work!
    what can i do?

  16. Bogwitch 23 May 2008 at 6:13 pm Permalink

    You’ll need to give a little more information than that. Any error messages? What do you mean ‘it doesn’t work’?

  17. Alex 23 May 2008 at 9:01 pm Permalink

    ok, when i write the command, ” no such file or directory” or “Error: Coudn’t find hydra.exe ” appears.

  18. Bogwitch 23 May 2008 at 9:28 pm Permalink

    OK, which error do you get under which circumstances?
    Are you running the command from the directory where you extracted the files?
    Is your anti-virus blocking access to the files?

  19. lafluaf 31 October 2008 at 2:39 pm Permalink

    You have to store the dll files which comes with the zip package in you x:/cygwin/bin folder and then start it with a dos console.

    it’s a downgrade of the dll used in general

  20. Alex 3 December 2008 at 4:17 pm Permalink

    the link to download it does not work. Where can you get a copy of it?

  21. Darknet 4 December 2008 at 6:40 am Permalink

    Links updated because you’re too retarded to Google for thc-hydra or just go to the homepage..

  22. bewolf 16 December 2008 at 10:25 am Permalink

    i have some probleme:

    Checking for SAP/R3 (librfc/saprfc.h) …
    … NOT found, module sapr3 disabled

    any ideas ?!!

  23. Haxer 10 February 2009 at 2:22 am Permalink


  24. Haxer 10 February 2009 at 2:23 am Permalink

    kk now u go to start>run type cmd hit enter
    now cd to where u put the files in
    when ur in folder type this hydra -h now u should see bunch of commands so u type hydra (script here)

  25. jeck 4 March 2009 at 7:56 am Permalink

    “coudnt create signal pipe". whats this?

  26. dblackshell 4 March 2009 at 8:40 am Permalink

    @jeck: are you running the windows version, or are you running it with cygwin… if the second is the case read the following http://www.cygwin.com/ml/cygwin/2005-02/msg00286.html

  27. T 23 April 2009 at 1:39 am Permalink

    I’m confused as to how this program works. Does it enable you to get passwords that have been entered into remote computers?

  28. Casso 30 May 2009 at 3:04 pm Permalink

    I can’t downlaod the program. Can anyone upload it on megaupload or rapidshare ? thx

    I don’t speak english very well

  29. Bogwitch 30 May 2009 at 5:33 pm Permalink

    @Cosso, if you can’t managee to download the program, you shouldn’t be using it!