Frequently Asked Questions
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Backdoor:PHP:MAILER:33
Attackers use this PHP Mailer tool to send spam emails from your site. It hides in the filesystem and hence it is difficult to detect if the user cannot access to the server or logs. This is often used by hackers to perform phishing and Denial of Service Attacks (DOS), exploiting the compromised server as a part of their botnet.
Mode of Infection: Any outdated website (outdated Joomla, Wordpress, osCommerce and stolen passwords).
