Fileless protection explained: Blocking the invisible threat others miss

This document explains fileless attacks—malware that operates in memory using trusted tools like PowerShell and WMI—and describes how Malwarebytes detects and blocks such behavior through Script Monitoring and Command-Line Protection. It illustrates three common scenarios (macro-driven ransomware download, in-browser cryptomining scripts, and WMI-based persistence) to show how behavior-based detection prevents execution, persistence, and resource abuse, positioning this capability as part of Malwarebytes Premium’s broader layered defense.