August 21st, 2010 
Edwin 
Wikipedia describes THC-Hydra as “… software … that uses a dictionary attack to test for weak or simple passwords on one or many remote hosts running a variety of different services.” Its useful for doing quick tests against your servers to make sure that your users are not using simple passwords. In pen tester speak, this is called a brute-force attack.
Here are the steps needed for installing it on the 32-bit version of Ubuntu Lucid Lynx 10.04.
Make sure you have all the necessary development tools (i.e. libraries, compilers, headers) and the source files for GTK:
sudo apt-get install build-essential linux-headers-$(uname -r) libgtk2.0-dev
Download and extract the THC-Hydra tarball
wget -c http://freeworld.thc.org/releases/hydra-5.7-src.tar.gz tar -xvzf hydra-5.7-src.tar.gz cd hydra-5.7-src
Now you are ready to compile:
./configure make sudo makeinstall
You are now ready to use Hydra. Type ./hydra -h to get syntax help. The GUI version can be started by running xhydra.
An example of using Hydra would look like this:
./hydra -l yourfriend@hisdomain.com -P password.txt -V mail.hisdomain.com imap
I believe that I am only at a beginning, only knocking at a door, and I believe that the best is yet to come. –Pat Buckley
Posted in 
Followed directions but apparently I am missing some dependencies or something because I receive this error during make.
gcc -I. -Wall -O2 -o pw-inspector pw-inspector.c
…
gcc -I. -Wall -O2 -lm -o hydra hydra-vnc.o hydra-pcnfs.o hydra-rexec.o hydra-nntp.o hydra-socks5.o hydra-telnet.o hydra-cisco.o hydra-http.o hydra-ftp.o hydra-imap.o hydra-pop3.o hydra-smb.o hydra-icq.o hydra-cisco-enable.o hydra-ldap.o hydra-mysql.o hydra-http-proxy.o hydra-smbnt.o hydra-mssql.o hydra-snmp.o hydra-cvs.o hydra-smtpauth.o hydra-sapr3.o hydra-ssh2.o hydra-teamspeak.o hydra-postgres.o hydra-rsh.o hydra-rlogin.o hydra-oracle-listener.o hydra-svn.o hydra-pcanywhere.o hydra-sip.o hydra-vmauthd.o hydra-smtpauth-ntlm.o hydra-firebird.o hydra-ncp.o hydra-http-proxy-auth-ntlm.o hydra-imap-ntlm.o hydra-pop3-ntlm.o hydra-http-form.o crc32.o d3des.o md4.o hydra-mod.o ntlm.o hydra.o -lm -lpq -L/usr/lib -L/usr/local/lib -L/lib -L/usr/lib
/usr/bin/ld: cannot find -lpq
collect2: ld returned 1 exit status
make: *** [hydra] Error 1
any advice?
Try this:
sudo apt-get install libpq-dev
Thanks, I had the same error and installing that package worked
I keep having the ssh2 error..
make: *** [hydra-ssh2.o] Error 1
I think I might be missing a lib
Are you on Lucid? I would try this:
sudo apt-get install libssl-dev libssh-dev libssh2-1-dev
Hi, I think there is an option for ssl support in ./configure.
In your case, Hydra works fine, but the ssl support is non present. (993 Gmail IMAP, for example)
In backtrack 4 Hydra has SSL support.
Thanks for your info.
Rjky
Thanks for the tip. I normally use stunnel but it is a bit of a drag.
I started up BT4, ran xhydra and plugged in the parameters including SSL and presto! SSL worked. Very easy. Thanks for the tiip.
http://freeworld.thc.org/releases/hydra-5.7-src.tar.gz seems to be down.
I have uploaded a copy here: http://edwincastillo.com/wp-content/uploads/2010/10/hydra-5.7-src.tar.gz
I have xhydra installed and working in 10.04 and it works if I type in a url like somewhere.org, as a target, but if I type in somewhere.org/foldername it says login failed (the sub-directory is password protected). Any thoughts?
Thanks
According to the README, you need to add the subfolder as an option for the service module http[s]-form-{get|post}. for example:
/login.php:user=^USER^&pass=^PASS^&mid=123:incorrectI’m not 100% sure how that translates into the GUI xHydra but it seems to be on the Specific tab. The target variable needs to be able to translate into an IP address so you must only use the FQDN or IP Address. I hope that helps.
i put in the first thing and got
E: dpkg was interrupted, you must manually run ‘sudo dpkg –configure -a’ to correct the problem.
is this because of a past failed installation?
whats the bit of code to fix this?
i lost a link to it
You should be able to resolve the issue by running:
sudo dpkg --configure -aHave you tried that?
yep, thanks.
)
now i feel like a complete noob
thanks for getting back so quick
also, where can i get xhydra? does that come with this installation?
Estimado colega:
Yo lo instale de maravilla sin ningún tipo de dificultad en 10.04, aquí dejo plasmado los pasos que realicé:
1- descargarlo de http://freeworld.thc.org/releases/hydra-6.1-src.tar.gz
2- tar -xvzf hydra-6.1-src.tar.gz
3- cd hydra-6.1-src/
4- ./configure
5- make
6- sudo make install
y por útimo para hacer uso de el con su entorno gráfico, por su puesto, más cómodo:
7- xhydra
Espero que te funcione correctamente, en caso de problema no dudes en contactarme.
Jose Carlos Ramos Carmenates
jramoscarmenates@gmail.com
Saludos
A Tutorial in German language for ubuntu 10.10 and hydra 6.1 is found here: http://php-faq.eu/content/6/3/de/installations-anleitung-thc_hydra-61-in-ubuntu-1010.html
followed directions and works perfect. thank you.
I have followed the instructions carefully, but as I type in the command in the last step, the installation fails. This is what I come up with:
Now type make install
kristian@ubuntu:~/hydra-6.3-src$ sudo makeinstall
sudo: makeinstall: command not found
kristian@ubuntu:~/hydra-6.3-src$ sudo make install
strip hydra pw-inspector
echo OK > /dev/null && test -x xhydra && strip xhydra || echo OK > /dev/null
cp hydra pw-inspector /usr/local/bin && cd /usr/local/bin && chmod 755 hydra pw-inspector
echo OK > /dev/null && test -x xhydra && cp xhydra /usr/local/bin && cd /usr/local/bin && chmod 755 xhydra || echo OK > /dev/null
cp -f hydra.1 xhydra.1 pw-inspector.1 /usr/local/man/man1
cp: target `/usr/local/man/man1′ is not a directory
make: *** [install] Error 1
kristian@ubuntu:~/hydra-6.3-src$
I am using ubuntu 11.04, and as it is hydra 6.3 I am installing I have of cause change the command to this. Hope you can help me?
Thanks
Try creating the non-standard man directory;
sudo mkdir /usr/local/man/man1
than try sudo make install again.
[...] -> Hydra 5.4 Ubuntu 10.04 ‘Lucid Lynx’: http://edwincastillo.com/archives/95 -> Hydra 5.7 Ubuntu 10.10 ‘Maverick [...]
Hi, Thanks for Tutorial!
I have installed Hydra very well. But i have this error message when i tried to crack my router password using hydra:
” Error: File for logins not found!”
Please, may you help me. I have forgotten my router password and don’t want to reset.
Thanks!
The command i type to crack my router password is:
“hydra 192.168.2.1 -L /wordlists/login.txt -P /wordlists/ap_password.txt -t 1 -e ns -v -f http-get /loginpserr.htm ”
Thx!