Nasreddine Bencherchali
598d29f811
chore: change tags, date, modified fields to comply with v2 of the Sigma spec. chore: update the related type from `obsoletes` to `obsolete`. chore: update local json schema to the latest version.
39 lines
1.2 KiB
YAML
39 lines
1.2 KiB
YAML
title: Delete Important Scheduled Task
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id: dbc1f800-0fe0-4bc0-9c66-292c2abe3f78
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related:
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- id: 9e3cb244-bdb8-4632-8c90-6079c8f4f16d # TaskScheduler EventLog
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type: similar
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- id: 7595ba94-cf3b-4471-aa03-4f6baa9e5fad # Security-Audting Eventlog
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type: similar
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status: test
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description: Detects when adversaries stop services or processes by deleting their respective scheduled tasks in order to conduct data destructive activities
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references:
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- Internal Research
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author: Nasreddine Bencherchali (Nextron Systems)
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date: 2022-09-09
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tags:
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- attack.impact
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- attack.t1489
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logsource:
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category: process_creation
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product: windows
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detection:
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selection:
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Image|endswith: '\schtasks.exe'
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CommandLine|contains|all:
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- '/delete'
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- '/tn'
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CommandLine|contains:
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# Add more important tasks
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- '\Windows\BitLocker'
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- '\Windows\ExploitGuard'
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- '\Windows\SystemRestore\SR'
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- '\Windows\UpdateOrchestrator\'
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- '\Windows\Windows Defender\'
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- '\Windows\WindowsBackup\'
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- '\Windows\WindowsUpdate\'
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condition: selection
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falsepositives:
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- Unlikely
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level: high
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