Ninjamailer.php

The file ninjamailer.php is most commonly associated with a used by cyberattackers to send spam or malicious content. Specifically, a tool named TeamCC ninjaMailer v1.3.3 has been identified by security researchers at Talos Intelligence as part of the toolsets used in targeted cyber campaigns to distribute malicious documents and download links. Common Characteristics

If you have encountered this file in a web environment, it is often indicative of a or a web shell . Key details include: ninjamailer.php

: A popular, secure form builder for WordPress that handles email notifications via standard WordPress functions. The file ninjamailer

: It is designed to mass-send emails, often bypassing standard server restrictions to facilitate phishing or malware proliferation. Key details include: : A popular, secure form

It is important to distinguish this script from legitimate WordPress plugins that use similar names: