Email Impersonating Internal IT Department

Darshan Thummar@Mighty

•updated Jun 11, 2026•0•0•5

This rule detects emails sent to the internal network (SMTP port 25) that attempt to impersonate an internal IT department. It specifically looks for the 'From:' header, the phrase 'IT Department' (case-insensitive), and the word 'password' (case-insensitive) within the email content. This combination suggests a social engineering attempt, likely phishing, to trick recipients into revealing credentials.