Countercept Agent for Windows - 2026-03-02 - Sensor update

The update is related to the Countercept Agent’s Sensor component. The Sensor component gathers data to be analyzed in the WithSecure backend to identify any malicious activity.

Product Name: Countercept Agent for Windows – Sensor Component

Version: 2026.1.40

Pilot Availability: 03/03/2026

General Availability: 17/03/2026

Predecessor: 2025.3.64

Release Purpose:

New Features and Enhancements
Generic maintenance

Customer Action Required:

The Operating System should be Azure Code Signing (ACS) compliant to receive this update. See https://community.withsecure.com/en/kb/articles/29714-changes-in-support-on-microsoft-windows-minimum-patch-level for more details.

Name Changes:

No changes to file, process, or service names.

Files Updated:

fsatp.sys
fsatpl.exe
fsatpn.exe
install.exe
sensor_control.exe

New Features and Enhancements:

New detections and monitoring improvements
Additional tampering protection

General Maintenance:

Bug fixes and dependency updates

OS Support:

Windows 10, 11
Windows Server 2012, 2012 R2, 2016, 2019, 2022, 2025