xHydra is the graphical version of hydra, and it is easy to use. Hydra and xHydra comes pre-installed in Kali Linux.
Hydra supports these protocols: Cisco AAA, Cisco auth, Cisco enable, CVS, FTP, HTTP(S)-FORM-GET, HTTP(S)-FORM-POST, HTTP(S)-GET, HTTP(S)-HEAD, HTTP-Proxy, ICQ, IMAP, IRC, LDAP, MS-SQL, MySQL, NNTP, Oracle Listener, Oracle SID, PC-Anywhere, PC-NFS, POP3, PostgreSQL, RDP, Rexec, Rlogin, Rsh, SIP, SMB(NT), SMTP, SMTP Enum, SNMP v1+v2+v3, SOCKS5, SSH (v1 and v2), SSHKEY, Subversion, Teamspeak (TS2), Telnet, VMware-Auth, VNC and XMPP.
Hydra works in 4 modes:
- One username & one password
- User-list & One password
- One username & Password list
- User-list & Password list
We can check the options of hydra by using following command in our Kali Linux terminal:
The screenshot of the command is following:
We need a username of list of usernames and a password or list of passwords to login on web services. We can found the wordlist files in the /usr/share/wodlists directory of Kali Linux.
If we want to make custom wordlists then we can use crunch. For a ftp login in our localhost we can use following command:
Here xx refers to our target IP address. The screenshot is following:
Here we have used flags -l and -p for single username and password but we also can use -L and -P for wordlists of username and password.
Then the command will be like following:
In the way of cybersecurity after scanning with nmap if we find ftp port is open then we can try hydra to bruteforce the ftp login.
xHydra — Hydra with graphical interface
There is a graphical version of hydra, it’s called xHydra. It is also comes pre-installed in our Kali Linux machine.
You can open xHydra from the Kali Linux terminal by using xhydra command:
This command will open the xhydra as we can see in the following screenshot:
The above screenshot is xhydra’s target tab. Let’s know about all the tabs and it’s works.
- Target – Specify the target
- Passwords – Specify password options & wordlists
- Tuning – Specify how fast should hydra work. Other timing options also available.
- Specific – For testing on specific targets like a domain, https proxy etc.
- Start – Start and Stop the attack & shows the output.
In the following screenshot we have selected a a target and a protocol in the target tab.
Then in the passwords tab we can enter a username or a username list and a password or a password list. Check the cxample in the following screenshot:
Then comes tuning tab, we put 1 in the field of “Number of tasks“
Then we go to the “Start” tab and choose the start option on the bottom-left corner. The screenshot is following:
Then the process will started. Whenever xHydra crack the SSH we can see the username and password below, as shown in the following screenshot:
This is how we can brute-force online passwords using hydra and xHydra in Kali Linux. This is a very old and useful tool for penetration testers.
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