Countercept Agent for Windows – 2025-08-12 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: 2025.2.44

Pilot Availability: 13/08/2025

General Availability: 02/09/2025

Predecessor: 2025.1.89

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.
  Any endpoints which are not ACS-compliant will continue to run the previous production version of the sensor (2023.1.75).

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 detection improvements

General Maintenance:

• Bug fixes and dependency updates

OS Support:

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

Please note that Windows 7 and Windows Server 2008 (R2) are not supported. On endpoints where these operating systems are in use, the Countercept agent will not be updated, and the previous sensor version (2024.2.31) will continue to run. New Countercept agent installations to these operating systems are now impossible.