Hydra is a powerful security tool for password testing and brute-force attacks on multiple protocols. User-friendly interface and versatile capabilities.
Hydra is a powerful and comprehensive security tool designed to help penetration testers and security professionals conduct brute-force attacks on various protocols and applications. The tool is widely used by security researchers and experts worldwide, providing them with the ability to perform testing and analysis on various security protocols, including HTTP, SMTP, FTP, Telnet, and many more.
Hydra is a versatile security tool that can be used for multiple purposes, including testing the strength of passwords, identifying vulnerabilities, and conducting penetration testing on different systems. It allows security professionals to automate their testing processes, which helps them save time and effort while ensuring that they get accurate and reliable results.
One of the primary features of Hydra is its ability to conduct brute-force attacks. This feature enables security professionals to test the strength of passwords by attempting to crack them using various techniques, such as dictionary attacks, which involve testing known words and phrases, and hybrid attacks, which combine multiple attack methods.
Hydra supports multiple protocols and applications, including HTTP, FTP, Telnet, SMTP, POP3, IMAP, SSH, and many more. It also offers a wide range of attack methods, including brute-force attacks, dictionary attacks, and rainbow table attacks, among others. This makes it a versatile tool that can be used to test the security of various systems and applications.
In addition to its powerful attack capabilities, Hydra also features a user-friendly interface that makes it easy to use for both novice and advanced users. The tool also comes with a comprehensive documentation that explains how to use it effectively and efficiently.
Overall, Hydra is an essential tool for any security professional who wants to conduct comprehensive penetration testing on various systems and applications. With its versatile attack capabilities, support for multiple protocols, and user-friendly interface, Hydra is the go-to tool for security professionals who want to ensure that their systems and applications are secure and protected from potential threats.
hydra Usage Example
Attempt to login as the root user (-l root) using a password list (-P /usr/share/wordlists/metasploit/unix_passwords.txt) with 6 threads (-t 6) on the given SSH server (ssh://192.168.1.123):
:~# hydra -l root -P /usr/share/wordlists/metasploit/unix_passwords.txt -t 6 ssh://192.168.1.123
Hydra v7.6 (c)2013 by van Hauser/THC & David Maciejak - for legal purposes only
Hydra (http://www.thc.org/thc-hydra) starting at 2014-05-19 07:53:33
[DATA] 6 tasks, 1 server, 1003 login tries (l:1/p:1003), ~167 tries per task
[DATA] attacking service ssh on port 22
pw-inspector Usage Example
Read in a list of passwords (-i /usr/share/wordlists/nmap.lst) and save to a file (-o /root/passes.txt), selecting passwords of a minimum length of 6 (-m 6) and a maximum length of 10 (-M 10):
Installed size:956 KBHow to install:sudo apt install hydra
Dependencies:
libapr1
libbson-1.0-0
libc6
libfbclient2
libfreerdp2-2
libgcrypt20
libidn12
libmariadb3
libmemcached11
libmongoc-1.0-0
libpcre2-8-0
libpq5
libssh-4
libssl3
libsvn1
libtinfo6
libwinpr2-2
zlib1g
dpl4hydra
Generates a (d)efault (p)assword (l)ist as input for THC hydra
:~# dpl4hydra -h
dpl4hydra v0.9.9 (c) 2012 by Roland Kessler (@rokessler)
Syntax: dpl4hydra [help] | [refresh] | [BRAND] | [all]
This script depends on a local (d)efault (p)assword (l)ist called
/root/.dpl4hydra/dpl4hydra_full.csv. If it is not available, regenerate it with
'dpl4hydra refresh'. Source of the default password list is
http://open-sez.me
Options:
help Help: Show this message
refresh Refresh list: Download the full (d)efault (p)assword (l)ist
and generate a new local /root/.dpl4hydra/dpl4hydra_full.csv file. Takes time!
BRAND Generates a (d)efault (p)assword (l)ist from the local file
/root/.dpl4hydra/dpl4hydra_full.csv, limiting the output to BRAND systems, using
the format username:password (as required by THC hydra).
The output file is called dpl4hydra_BRAND.lst.
all Dump list of all systems credentials into dpl4hydra_all.lst.
Example:
# dpl4hydra linksys
File dpl4hydra_linksys.lst was created with 20 entries.
# hydra -C ./dpl4hydra_linksys.lst -t 1 192.168.1.1 http-get /index.asp
hydra
A very fast network logon cracker which supports many different services
:~# hydra -h
Hydra v9.4 (c) 2022 by van Hauser/THC & David Maciejak - Please do not use in military or secret service organizations, or for illegal purposes (this is non-binding, these *** ignore laws and ethics anyway).
Syntax: hydra [[[-l LOGIN|-L FILE] [-p PASS|-P FILE]] | [-C FILE]] [-e nsr] [-o FILE] [-t TASKS] [-M FILE [-T TASKS]] [-w TIME] [-W TIME] [-f] [-s PORT] [-x MIN:MAX:CHARSET] [-c TIME] [-ISOuvVd46] [-m MODULE_OPT] [service://server[:PORT][/OPT]]
Options:
-R restore a previous aborted/crashed session
-I ignore an existing restore file (don't wait 10 seconds)
-S perform an SSL connect
-s PORT if the service is on a different default port, define it here
-l LOGIN or -L FILE login with LOGIN name, or load several logins from FILE
-p PASS or -P FILE try password PASS, or load several passwords from FILE
-x MIN:MAX:CHARSET password bruteforce generation, type "-x -h" to get help
-y disable use of symbols in bruteforce, see above
-r use a non-random shuffling method for option -x
-e nsr try "n" null password, "s" login as pass and/or "r" reversed login
-u loop around users, not passwords (effective! implied with -x)
-C FILE colon separated "login:pass" format, instead of -L/-P options
-M FILE list of servers to attack, one entry per line, ':' to specify port
-o FILE write found login/password pairs to FILE instead of stdout
-b FORMAT specify the format for the -o FILE: text(default), json, jsonv1
-f / -F exit when a login/pass pair is found (-M: -f per host, -F global)
-t TASKS run TASKS number of connects in parallel per target (default: 16)
-T TASKS run TASKS connects in parallel overall (for -M, default: 64)
-w / -W TIME wait time for a response (32) / between connects per thread (0)
-c TIME wait time per login attempt over all threads (enforces -t 1)
-4 / -6 use IPv4 (default) / IPv6 addresses (put always in [] also in -M)
-v / -V / -d verbose mode / show login+pass for each attempt / debug mode
-O use old SSL v2 and v3
-K do not redo failed attempts (good for -M mass scanning)
-q do not print messages about connection errors
-U service module usage details
-m OPT options specific for a module, see -U output for information
-h more command line options (COMPLETE HELP)
server the target: DNS, IP or 192.168.0.0/24 (this OR the -M option)
service the service to crack (see below for supported protocols)
OPT some service modules support additional input (-U for module help)
Supported services: adam6500 asterisk cisco cisco-enable cobaltstrike cvs firebird ftp[s] http[s]-{head|get|post} http[s]-{get|post}-form http-proxy http-proxy-urlenum icq imap[s] irc ldap2[s] ldap3[-{cram|digest}md5][s] memcached mongodb mssql mysql nntp oracle-listener oracle-sid pcanywhere pcnfs pop3[s] postgres radmin2 rdp redis rexec rlogin rpcap rsh rtsp s7-300 sip smb smtp[s] smtp-enum snmp socks5 ssh sshkey svn teamspeak telnet[s] vmauthd vnc xmpp
Hydra is a tool to guess/crack valid login/password pairs.
Licensed under AGPL v3.0. The newest version is always available at;
https://github.com/vanhauser-thc/thc-hydra
Please don't use in military or secret service organizations, or for illegal
purposes. (This is a wish and non-binding - most such people do not care about
laws and ethics anyway - and tell themselves they are one of the good ones.)
These services were not compiled in: afp ncp oracle sapr3 smb2.
Use HYDRA_PROXY_HTTP or HYDRA_PROXY environment variables for a proxy setup.
E.g. % export HYDRA_PROXY=socks5://l::9150 (or: socks4:// connect://)
% export HYDRA_PROXY=connect_and_socks_proxylist.txt (up to 64 entries)
% export HYDRA_PROXY_HTTP=http://login::8080
% export HYDRA_PROXY_HTTP=proxylist.txt (up to 64 entries)
Examples:
hydra -l user -P passlist.txt ftp://192.168.0.1
hydra -L userlist.txt -p defaultpw imap://192.168.0.1/PLAIN
hydra -C defaults.txt -6 pop3s://[2001:db8::1]:143/TLS:DIGEST-MD5
hydra -l admin -p password ftp://[192.168.0.0/24]/
hydra -L logins.txt -P pws.txt -M targets.txt ssh
hydra-wizard
Wizard to use hydra from command line
:~# man hydra-wizard
HYDRA-WIZARD(1) General Commands Manual HYDRA-WIZARD(1)
NAME
HYDRA-WIZARD - Wizard to use hydra from command line
DESCRIPTION
This script guide users to use hydra, with a simple wizard that will
make the necessary questions to launch hydra from command line a fast
and easily
1. The wizard ask for the service to attack
2. The target to attack
3. The username o file with the username what use to attack
4. The password o file with the passwords what use to attack
5. The wizard ask if you want to test for passwords same as login, null
or reverse login
6. The wizard ask for the port number to attack
Finally, the wizard show the resume information of attack, and ask if
you want launch attack
SEE ALSO
hydra(1), dpl4hydra(1),
AUTHOR
hydra-wizard was written by Shivang Desai <>.
This manual page was written by Daniel Echeverry <>,
for the Debian project (and may be used by others).
19/01/2014 HYDRA-WIZARD(1)
pw-inspector
A tool to reduce the password list
:~# pw-inspector -h
PW-Inspector v0.2 (c) 2005 by van Hauser / THC [https://github.com/vanhauser-thc/thc-hydra]
Syntax: pw-inspector [-i FILE] [-o FILE] [-m MINLEN] [-M MAXLEN] [-c MINSETS] -l -u -n -p -s
Options:
-i FILE file to read passwords from (default: stdin)
-o FILE file to write valid passwords to (default: stdout)
-m MINLEN minimum length of a valid password
-M MAXLEN maximum length of a valid password
-c MINSETS the minimum number of sets required (default: all given)
Sets:
-l lowcase characters (a,b,c,d, etc.)
-u upcase characters (A,B,C,D, etc.)
-n numbers (1,2,3,4, etc.)
-p printable characters (which are not -l/-n/-p, e.g. $,!,/,(,*, etc.)
-s special characters - all others not within the sets above
PW-Inspector reads passwords in and prints those which meet the requirements.
The return code is the number of valid passwords found, 0 if none was found.
Use for security: check passwords, if 0 is returned, reject password choice.
Use for hacking: trim your dictionary file to the pw requirements of the target.
Usage only allowed for legal purposes.
hydra-gtk
Hydra is a parallelized login cracker which supports numerous protocols to attack. It is very fast and flexible, and new modules are easy to add.
This tool makes it possible for researchers and security consultants to show how easy it would be to gain unauthorized access to a system remotely.
This package provides the GTK+ based GUI for hydra.
Installed size:107 KBHow to install:sudo apt install hydra-gtk
Dependencies:
hydra
libatk1.0-0
libc6
libgdk-pixbuf-2.0-0
libglib2.0-0
libgtk2.0-0
xhydra
Gtk+2 frontend for thc-hydra
:~# man xhydra
XHYDRA(1) General Commands Manual XHYDRA(1)
NAME
xhydra - Gtk+2 frontend for thc-hydra
SYNOPSIS
Execute xhydra in a terminal to start the application.
DESCRIPTION
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.
xhydra is the graphical fronend for the hydra(1) tool.
SEE ALSO
hydra(1), pw-inspector(1).
AUTHOR
hydra was written by van Hauser <>
This manual page was written by Daniel Echeverry <>,
for the Debian project (and may be used by others).
02/02/2012 XHYDRA(1)
