Trend Micro Deep | Security Anti-malware Driver Offline Not Installed

Deep Security relies on ELAM (Early Launch Anti-Malware) and mini-filter drivers. If a Windows update or agent upgrade occurred recently, the OS will flag the driver as offline until a complete reboot cycles the kernel.

If enabled, verify if the Trend Micro digital certificates are trusted on the machine.

Check your Secure Boot status by running msinfo32 in Windows.

& "C:\Program Files\Trend Micro\Deep Security Agent\dsa_control" -m Linux: /opt/ds_agent/dsa_control -m

On the affected Windows machine:

Trend Micro builds drivers for specific Linux kernel versions. If the Linux security team patched the kernel recently, the existing Deep Security driver may fail to load. Check your current kernel: uname -r Use code with caution.

Anti-Malware: Driver offline / Not installed - Deep Security

Log into your Linux host via SSH and check if the Trend Micro file system filter modules are loaded: lsmod | grep grep -E "vfs|trend" Use code with caution.

The and exact version/kernel version of the host. The version of the Deep Security Agent you are running. Deep Security relies on ELAM (Early Launch Anti-Malware)

Verify if your installed Deep Security Agent version officially supports this kernel by cross-referencing the Trend Micro Kernel Support Matrix.

You are encountering an issue where the Deep Security Anti-Malware (AM) driver is either missing, listed as "Offline," or fails to install on the target machine. This prevents the Real-Time Scan from functioning correctly.

Other antivirus products (e.g., OfficeScan, Apex One, or third-party AVs) can conflict with the Deep Security driver installation. Kernel Incompatibility (Linux):

Before diving into solutions, it is important to understand why this happens: Check your Secure Boot status by running msinfo32 in Windows

Trend Micro Deep Security is a security software solution that provides a range of features to protect against various types of threats, including malware, ransomware, and zero-day attacks. It offers a multi-layered approach to security, incorporating features such as anti-malware, firewall, intrusion detection and prevention, and data loss prevention. Deep Security is designed to work in various environments, including virtual, cloud, and on-premises, making it a versatile solution for businesses with diverse infrastructure.

Ensure the necessary services are active on the affected machine. Open a command prompt as an administrator and run:

If the driver simply fails to install or bind, you can install it manually. The steps can vary slightly:

: Temporary offline status can occur during Storage vMotion if the VM's UUID changes. Check your current kernel: uname -r Use code with caution