"Microsoft is bringing Sysmon functionality to Windows 11 and Windows Server 2025 as standard. The security tool, formerly part of Sysinternals, will be integrated into the operating system itself. Microsoft announced in November 2025 that Sysmon functionality would become available natively in Windows. The company is now rolling out the feature to Windows 11 Insider Preview Build 26220.7752. The tool is disabled by default and must be activated explicitly."
"Users can enable Sysmon via Settings > System > Optional features > More Windows features, or via PowerShell with the command 'Dism /Online /Enable-Feature /FeatureName:Sysmon'. After installation, start the service with 'sysmon -i' via PowerShell or command prompt. If you have already installed Sysmon from the Sysinternals website, you must first uninstall it before the built-in version can be activated. The functionality remains unchanged, including support for custom configuration files."
"Sysmon monitors system activity and writes events to the Windows event log. The tool helps detect threats such as credential theft and lateral movements in networks. Security teams use the generated data in SIEM systems for analysis and detection. End of operational overhead For many IT administrators, Sysmon used to mean manual work. You had to download binaries, roll out configurations, and consistently apply updates across thousands of endpoints. This introduced risks when updates were delayed."
Sysmon functionality will be integrated natively into Windows 11 and Windows Server 2025, arriving via Insider Preview Build 26220.7752 and disabled by default. Users must enable the feature through Settings or PowerShell and start the service with 'sysmon -i'. Existing Sysmon installations from Sysinternals must be uninstalled before activating the built-in version. Sysmon records detailed system activity events to Applications and Services Logs / Microsoft/Windows/Sysmon/Operational and does not generate alerts itself; generated data is intended for SIEM ingestion and analysis. Native integration provides automatic updates through Windows Update and reduces deployment and maintenance overhead.
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