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When a new Linux kernel version is released, Trend Micro releases a new kernel support package for the agent. If a computer's kernel version is not currently supported, then the Activity Monitoring engine can provide only basic protection. Normal protection resumes when the agent receives the update to support the new kernel version. To prevent this problem, verify that the new kernel version is supported before you upgrade it.

Basic functions

Module
Category
Feature name
Supported
Comment
Activity Monitoring
Telemetry
File Create Event
No
No support in container
File Open Event
No
No support in container
Process Create Event
Yes
Process Terminate Event
Yes
DNS Query Event
No
Network Inbound Connection Event
Yes
Network Outbound Event
Yes
UDSO
Logging action for IP address, domain, file SHA-1, and file SHA-256
No
Cannot log all DNS query events.
For more information, see Suspicious Object Management.
Quarantine or block action for file SHA-1 and file SHA-256
Yes
For more information, see Suspicious Object Management.
Response
Remote Shell
Yes
File Collection
Yes
Custom Script
Yes
Network Isolation
Yes
Memory Dump
Yes

Reason IDs

To restore full functionality when the agent is providing only basic protection, you must resolve the cause of the warning based on the reason ID:
  • Reason ID 7:
    1. Find out if the latest Kernel Support Package (KSP) for that particular kernel is available.
    2. File a case to request KSP support.
  • Other reason ID:
    1. Contact your support provider
The reason ID is included in events forwarded to an external Syslog, SIEM server, or Amazon SNS. Also the event description for the Anti-Malware Engine Offline or Anti-Malware Engine with Basic Functions agent displays the reason ID.
Reason ID
Event reason
Description
7
Unavailable kernel version
No driver is available for the Linux kernel version. This causes a driver offline error.
8
Failed driver loading
Loading the driver (tmhook/bmhook) into the kernel failed. This causes a driver offline error.
9
Failed driver unloading
Unloading a driver from the kernel failed. This causes a driver offline error.
14
Configuration file disable driver
Agent is set to not load the driver by configuration INI file. This causes a driver offline state.
15
Policy disable driver
Agent is set to not load the driver by Deep Security Manager or Workload Security policy. This causes a driver offline state.