The sysmon module processes event log records from the Sysinternals System Monitor (Sysmon) which is a Windows service and device driver that logs system activity to the event log. Sysmon is not bundled with Windows or Winlogbeat and must be installed independently.
The default configuration file includes configuration for Sysmon. If you do not
have Sysmon installed Winlogbeat will log a warning that it could not read from
Microsoft-Windows-Sysmon/Operational channel. It will continue to read
from the other configured channels. If you do install Sysmon at a later time
then a restart of Winlogbeat is required to make it begin reading from the
This module was built based on Sysmon v10 event manifests. It contains transformations for each of the defined event IDs.