Skip to content
EDRStartupHinder Tool Blocks Antivirus and EDR at Windows 11 25H2 Startup

EDRStartupHinder Tool Blocks Antivirus and EDR at Windows 11 25H2 Startup

First seen 12 Jan 2026, 08:57 UTC • •

Article Content

Browse articles
ThreatCluster AI
ThreatCluster •March 12, 2026 at 13:27 UTC

A new tool named EDRStartupHinder has been unveiled by security researcher TwoSevenOneT. This tool is designed to block antivirus and EDR services at startup on Windows 11 25H2 by redirecting critical System32 DLLs, specifically demonstrated on Windows Defender. The tool is part of a series of EDR evasion tools developed by the researcher.

Start a free Starter trial for enhanced analysis

Ask AI about this cluster

Updated 212d ago How this analysis works

More articles in this cluster (3)