Web hackeada

Hola, al parecer nos hackeado la web y necesitamos solucionar el problema para que vuelva a estar online. Este es el mensaje que nos han enviado del servidor: [login to view URL] is still hacked [login to view URL] is still sending spam. You have to take actions and reply to this message or we will be forced to suspend your services to protect our IP reputation and other clients. Thank you to: - read your mail server logs - investigate and identify the spam source (possible server misconfiguration, website compromised, account/password compromised etc...) - fix the issue and stop the spam source - clean the server outbound mail queue, and other potential malicious files - remove your IP from the blacklists [login to view URL] If you need assistance about this, we invite you contact our technical support, using your customer hub, live chat or phone :[login to view URL] Please refer: [login to view URL] Please investigate, fix the vulnerability, and clean the malicious content or suspend involved accounts. Common vulnerabilities include: - files/folders permissions - modified .htaccess files - software not up-to-date (including wordpress, joomla, apache, cpanel...) - weak passwords (including FTP accounts, email accounts) - any other malicious files (backdoors in website content, or malicious recently modified files) - website/application vulnerabilities The server may be compromised by malicious spamware and another malicious content. We recommend you to install Maldet (LMD) and Clamav, and run the scans regularly. [login to view URL] We recommend you to install an intrusion detection software to protect your server against brute-force. (Like ConfigServer Security&Firewall or Fail2Ban) [login to view URL] Please also keep up-to-date your CMS like joomla, wordpress or drupal **including plugins, themes and modules**: [login to view URL] Please note that the server security remains to your responsibility, thank you to act accordingly. We are awaiting your reply on this situation.