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A scheduled task was created

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A scheduled task was created

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Indicates the creation of a scheduled task using Windows event logs. Adversaries can use these to establish persistence, move laterally, and/or escalate privileges.

Rule type: eql

Rule indices:

winlogbeat-*
logs-system.*

Severity: low

Risk score: 21

Runs every: 5 minutes

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

Maximum alerts per execution: 100

References:

https://docs.microsoft.com/en-us/windows/security/threat-protection/auditing/event-4698

Tags:

Elastic
Host
Windows
Threat Detection
Persistence

Version: 1

Added (Elastic Stack release): 8.5.0

Rule authors: Elastic

Rule license: Elastic License v2

Potential false positives

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Legitimate scheduled tasks may be created during installation of new software.

Rule query

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iam where event.action == "scheduled-task-created" and /* excluding
tasks created by the computer account */ not user.name : "*$" and
/* TaskContent is not parsed, exclude by full taskname noisy ones */
not winlog.event_data.TaskName : ("\\OneDrive Standalone
Update Task-S-1-5-21*", "\\Hewlett-Packard\\HP Web
Products Detection", "\\Hewlett-Packard\\HPDeviceCheck")

Threat mapping

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Framework: MITRE ATT&CK^TM

Tactic:
- Name: Persistence
- ID: TA0003
- Reference URL: https://attack.mitre.org/tactics/TA0003/
Technique:
- Name: Scheduled Task/Job
- ID: T1053
- Reference URL: https://attack.mitre.org/techniques/T1053/

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