Powershell Create Scheduled Task

calendar Aug 12, 2024 · attack.persistence attack.t1053.005  ·
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Adversaries may abuse the Windows Task Scheduler to perform task scheduling for initial or recurring execution of malicious code

Sigma rule (View on GitHub)

 1title: Powershell Create Scheduled Task
 2id: 363eccc0-279a-4ccf-a3ab-24c2e63b11fb
 3status: test
 4description: Adversaries may abuse the Windows Task Scheduler to perform task scheduling for initial or recurring execution of malicious code
 5references:
 6    - https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1053.005/T1053.005.md#atomic-test-4---powershell-cmdlet-scheduled-task
 7    - https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1053.005/T1053.005.md#atomic-test-6---wmi-invoke-cimmethod-scheduled-task
 8author: frack113
 9date: 2021-12-28
10tags:
11    - attack.persistence
12    - attack.t1053.005
13logsource:
14    product: windows
15    category: ps_script
16    definition: 'Requirements: Script Block Logging must be enabled'
17detection:
18    selection_cmdlet:
19        ScriptBlockText|contains:
20            - 'New-ScheduledTaskAction'
21            - 'New-ScheduledTaskTrigger'
22            - 'New-ScheduledTaskPrincipal'
23            - 'New-ScheduledTaskSettingsSet'
24            - 'New-ScheduledTask'
25            - 'Register-ScheduledTask'
26    selection_cimmethod:
27        ScriptBlockText|contains|all:
28            - 'Invoke-CimMethod'
29            - '-ClassName'
30            - 'PS_ScheduledTask'
31            - '-NameSpace'
32            - 'Root\Microsoft\Windows\TaskScheduler'
33    condition: 1 of selection_*
34falsepositives:
35    - Unknown
36level: medium

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