41 lines
1.1 KiB
YAML
41 lines
1.1 KiB
YAML
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title: New TaskCache Entry
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ruletype: Sigma
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author: Syed Hasan (@syedhasan009)
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date: 2021/06/18
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description: Monitor the creation of a new key under 'TaskCache' when a new scheduled
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task is registered
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detection:
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SELECTION_1:
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EventID: 12
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SELECTION_2:
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EventID: 13
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SELECTION_3:
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EventID: 14
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SELECTION_4:
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EventType: SetValue
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SELECTION_5:
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TargetObject: '*SOFTWARE\Microsoft\Windows NT\CurrentVersion\Schedule\TaskCache\Tree\\*'
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SELECTION_6:
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TargetObject:
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- '*Microsoft\Windows\UpdateOrchestrator*'
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- '*Microsoft\Windows\SoftwareProtectionPlatform\SvcRestartTask\Index*'
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- '*Microsoft\Windows\Flighting\OneSettings\RefreshCache\Index*'
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condition: ((SELECTION_1 or SELECTION_2 or SELECTION_3) and (SELECTION_4 and SELECTION_5)
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and not (SELECTION_6))
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falsepositives:
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- Unknown
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id: 4720b7df-40c3-48fd-bbdf-fd4b3c464f0d
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level: medium
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logsource:
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category: registry_event
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product: windows
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modified: 2021/12/06
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references:
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- https://thedfirreport.com/2021/03/29/sodinokibi-aka-revil-ransomware/
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status: experimental
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tags:
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- attack.persistence
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- attack.t1053
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- attack.t1053.005
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