Você conhece a ferramenta de segurança oSSEC? http://www.ossec.net/
Ela faz isso que você quer, e monitora vários serviços e diretórios. Ah, e também tem versão em português ! []'s Alexandre Gorges http://www.google.com.br/profiles/algorges MSN/Gtalk/iCHAT/Skype/Jabber: algor...@gmail.com ICQ: 2031408 From: ricardoscript <ricardoscr...@yahoo.com.br> Reply-To: Lista Shell Script <shell-script@yahoogrupos.com.br> Date: Sun, 21 Feb 2010 00:25:59 -0000 To: Lista Shell Script <shell-script@yahoogrupos.com.br> Subject: [shell-script] Ajuda - Ler um arquivo de log e executar uma tarefa Pessoal, estou precisando de um script que leia meu arquivo mail.log e ao encontrar a palavra "LOGIN FAILED" vindo de um mesmo IP por mais de 6 vezes ele execute o comando iptables -A INPUT -s xxx.xxx.xxx.xxx(IP atacante) -j DROP Segue corte de meu mail.log onde se observa a tentativa de brute-force Por qualquer ajudo, estou desde já agradecido. Feb 20 09:20:35 matrix pop3d: Connection, ip=[::ffff:189.126.109.221] Feb 20 09:20:35 matrix pop3d: LOGIN FAILED, user=staff, ip=[::ffff:189.126.109.221] Feb 20 09:20:40 matrix pop3d: Disconnected, ip=[::ffff:189.126.109.221] Feb 20 09:20:40 matrix pop3d: Connection, ip=[::ffff:189.126.109.221] Feb 20 09:20:40 matrix pop3d: LOGIN FAILED, user=humberto, ip=[::ffff:189.126.109.221] Feb 20 09:20:45 matrix pop3d: Disconnected, ip=[::ffff:189.126.109.221] Feb 20 09:20:45 matrix pop3d: Connection, ip=[::ffff:189.126.109.221] Feb 20 09:20:45 matrix pop3d: LOGIN FAILED, user=humberto, ip=[::ffff:189.126.109.221] Feb 20 09:20:50 matrix pop3d: Disconnected, ip=[::ffff:189.126.109.221] Feb 20 09:20:50 matrix pop3d: Connection, ip=[::ffff:189.126.109.221] Feb 20 09:20:50 matrix pop3d: LOGIN FAILED, user=ian, ip=[::ffff:189.126.109.221] Feb 20 09:20:56 matrix pop3d: Disconnected, ip=[::ffff:189.126.109.221] Feb 20 09:20:56 matrix pop3d: Connection, ip=[::ffff:189.126.109.221] Feb 20 09:20:56 matrix pop3d: LOGIN FAILED, user=ian, ip=[::ffff:189.126.109.221] Feb 20 09:21:01 matrix pop3d: Disconnected, ip=[::ffff:189.126.109.221] Feb 20 09:21:01 matrix pop3d: Connection, ip=[::ffff:189.126.109.221] Feb 20 09:21:01 matrix pop3d: LOGIN FAILED, user=iasmin, ip=[::ffff:189.126.109.221] Feb 20 09:21:06 matrix pop3d: Disconnected, ip=[::ffff:189.126.109.221] Feb 20 09:21:06 matrix pop3d: Connection, ip=[::ffff:189.126.109.221] Feb 20 09:21:06 matrix pop3d: LOGIN FAILED, user=iasmin, ip=[::ffff:189.126.109.221] Feb 20 09:21:11 matrix pop3d: Disconnected, ip=[::ffff:189.126.109.221] Feb 20 09:21:11 matrix pop3d: Connection, ip=[::ffff:189.126.109.221] Feb 20 09:21:11 matrix pop3d: LOGIN FAILED, user=iasser, ip=[::ffff:189.126.109.221] Feb 20 09:21:16 matrix pop3d: Disconnected, ip=[::ffff:189.126.109.221] Feb 20 09:21:16 matrix pop3d: Connection, ip=[::ffff:189.126.109.221] Feb 20 09:21:16 matrix pop3d: LOGIN FAILED, user=iasser, ip=[::ffff:189.126.109.221] Feb 20 09:21:21 matrix pop3d: Disconnected, ip=[::ffff:189.126.109.221] Feb 20 09:21:21 matrix pop3d: Connection, ip=[::ffff:189.126.109.221] Feb 20 09:21:22 matrix pop3d: LOGIN FAILED, user=ibraim, ip=[::ffff:189.126.109.221] Feb 20 09:21:27 matrix pop3d: Disconnected, ip=[::ffff:189.126.109.221] Feb 20 09:21:27 matrix pop3d: Connection, ip=[::ffff:189.126.109.221] Feb 20 09:21:27 matrix pop3d: LOGIN FAILED, user=ibraim, ip=[::ffff:189.126.109.221] Feb 20 09:21:32 matrix pop3d: Disconnected, ip=[::ffff:189.126.109.221] Feb 20 09:21:32 matrix pop3d: Connection, ip=[::ffff:189.126.109.221] Feb 20 09:21:32 matrix pop3d: LOGIN FAILED, user=ibsen, ip=[::ffff:189.126.109.221] [As partes desta mensagem que não continham texto foram removidas]
