B374k.php

Look for GET /somefile.php followed by a POST with a password parameter ( ?p= or ?pass= ). Example:

For a deeper look into identifying and removing this threat, explore these expert resources. Detection & Triage Manual Removal Threat Hunting How to identify web shells in your environment MeetCyber's SOC Guide b374k.php

If you find b374k.php on a server you manage, treat it as an active breach. Here’s why: Look for GET /somefile

Deploying b374k.php is rarely the end goal – it is a stepping stone. After gaining access, attackers can: b374k.php