A scheduled task was updatededit

Indicates the update of a scheduled task using Windows event logs. Adversaries can use these to establish persistence, by changing the configuration of a legit scheduled task. Some changes such as disabling or enabling a scheduled task are common and may may generate noise.

Rule type: eql

Rule indices:

  • winlogbeat-*
  • logs-system.*

Severity: low

Risk score: 21

Runs every: 5m

Searches indices from: now-9m (Date Math format, see also Additional look-back time)

Maximum alerts per execution: 100



  • Elastic
  • Host
  • Windows
  • Threat Detection
  • Persistence

Version: 1

Rule authors:

  • Elastic

Rule license: Elastic License v2

Rule queryedit

iam where event.action == "scheduled-task-updated" and

 /* excluding tasks created by the computer account */
 not user.name : "*$" and
 not winlog.event_data.TaskName :
           "\\OneDrive Reporting Task-S-1-5-21*",
           "\\Hewlett-Packard\\HP Web Products Detection",