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Temporarily Scheduled Task Creation

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Temporarily Scheduled Task Creation

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Indicates the creation and deletion of a scheduled task within a short time interval. Adversaries can use these to proxy malicious execution via the schedule service and perform clean up.

Rule type: eql

Rule indices:

winlogbeat-*
logs-system.*
logs-windows.*

Severity: medium

Risk score: 47

Runs every: 5m

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:

Domain: Endpoint
OS: Windows
Use Case: Threat Detection
Tactic: Persistence

Version: 6

Rule authors:

Elastic

Rule license: Elastic License v2

Rule query

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sequence by winlog.computer_name, winlog.event_data.TaskName with maxspan=5m
   [iam where event.action == "scheduled-task-created" and not user.name : "*$"]
   [iam where event.action == "scheduled-task-deleted" and not user.name : "*$"]

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/
Sub-technique:
- Name: Scheduled Task
- ID: T1053.005
- Reference URL: https://attack.mitre.org/techniques/T1053/005/

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