Countercept Agent for Linux – 2026-02-23 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 Linux – Sensor Component

Version: 2026.1.170

Pilot Availability: 24/02/2026

General Availability: 10/03/2026

Predecessor: 2025.2.185

Release Purpose:

• Generic Maintenance

Customer Action Required:

• N/A

Name Changes:

• No changes to file, process, or service names.

Files Updated:

• sensor

New Features and Enhancements:

• CPU improvements on heavy load systems
• Extended file attributes for file metadata 
• Improved security of scanning results 
• Improved file event info gathering 
• Extended firewall monitoring 

Generic Maintenance:

• Dependency updates and bug fixes

OS Support:

• AMD64
  • AlmaLinux 8.4 – 9.x
  • Amazon Linux 2
  • CentOS 7, 8
  • Debian 10, 11, 12
  • Oracle Linux 7, 8, 9 (RHCK and UEK)
  • RHEL 7, 8, 9
  • Rocky Linux 8, 9
  • SUSE Linux Enterprise Server 12 SP3 – SP5
  • SUSE Linux Enterprise Server 15
  • Ubuntu 18.04, 20.04, 22.04, 24.04
• ARMv8/AArch64
  • Debian 11, 12
  • Rocky 9
  • Ubuntu 22.04, 24.04