For agentless deployments, the DSVA must have network access to the ESXi host’s management IP and the VM’s storage (via vMotion network). If firewalls block ports (e.g., TCP 443, 4120), the driver status appears offline.
Missing files, partial upgrades, or interference from other third-party security software can corrupt the driver files.
Another process or user disabled the driver.
I can provide specific commands and paths tailored to your exact deployment. Share public link
If any of these commands return an error stating that the service does not exist or is stopped, the anti-malware driver is completely missing or failed to initialize. Step-by-Step Resolution Strategies
The most common cause is a pending restart. The DSA agent requires a reboot to lock the drivers into the kernel. Even if the installer didn't ask for it, 2. Verify Agent Status via CLI
I can provide the exact commands and compatibility checks tailored to your environment. Share public link
: Run the latest agent installer and Reactivate the agent from the Deep Security Manager . 2. Verify Digital Certificates (Windows)
Reinstall the agent using your package manager and activate it:
The "Trend Micro Deep Security Anti-Malware Driver Offline Not Installed" error is more than a nuisance—it’s a security gap. In this state, your workloads are running blind, unable to detect file-based malware, ransomware, or webshells.
Security Anti-malware Driver Offline Not Installed | Trend Micro Deep
For agentless deployments, the DSVA must have network access to the ESXi host’s management IP and the VM’s storage (via vMotion network). If firewalls block ports (e.g., TCP 443, 4120), the driver status appears offline.
Missing files, partial upgrades, or interference from other third-party security software can corrupt the driver files.
Another process or user disabled the driver. For agentless deployments, the DSVA must have network
I can provide specific commands and paths tailored to your exact deployment. Share public link
If any of these commands return an error stating that the service does not exist or is stopped, the anti-malware driver is completely missing or failed to initialize. Step-by-Step Resolution Strategies Another process or user disabled the driver
The most common cause is a pending restart. The DSA agent requires a reboot to lock the drivers into the kernel. Even if the installer didn't ask for it, 2. Verify Agent Status via CLI
I can provide the exact commands and compatibility checks tailored to your environment. Share public link Step-by-Step Resolution Strategies The most common cause is
: Run the latest agent installer and Reactivate the agent from the Deep Security Manager . 2. Verify Digital Certificates (Windows)
Reinstall the agent using your package manager and activate it:
The "Trend Micro Deep Security Anti-Malware Driver Offline Not Installed" error is more than a nuisance—it’s a security gap. In this state, your workloads are running blind, unable to detect file-based malware, ransomware, or webshells.
