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win_taskscheduler_susp_schtasks_delete.yml
41 lines (41 loc) · 1.39 KB
/
win_taskscheduler_susp_schtasks_delete.yml
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title: Important Scheduled Task Deleted
id: 9e3cb244-bdb8-4632-8c90-6079c8f4f16d
related:
- id: dbc1f800-0fe0-4bc0-9c66-292c2abe3f78 # ProcCreation schtasks delete
type: similar
- id: 7595ba94-cf3b-4471-aa03-4f6baa9e5fad # Security-Audting Eventlog
type: similar
status: test
description: |
Detects when adversaries try to stop system services or processes by deleting their respective scheduled tasks in order to conduct data destructive activities
references:
- https://www.socinvestigation.com/most-common-windows-event-ids-to-hunt-mind-map/
author: frack113
date: 2023/01/13
modified: 2023/02/07
tags:
- attack.impact
- attack.t1489
logsource:
product: windows
service: taskscheduler
definition: 'Requirements: The "Microsoft-Windows-TaskScheduler/Operational" is disabled by default and needs to be enabled in order for this detection to trigger'
detection:
selection:
EventID: 141
TaskName|contains:
- '\Windows\SystemRestore\SR'
- '\Windows\Windows Defender\'
- '\Windows\BitLocker'
- '\Windows\WindowsBackup\'
- '\Windows\WindowsUpdate\'
- '\Windows\UpdateOrchestrator\'
- '\Windows\ExploitGuard'
filter:
UserName|contains:
- 'AUTHORI'
- 'AUTORI'
condition: selection and not filter
falsepositives:
- Unknown
level: high