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.
28 lines
1.4 KiB
YAML
28 lines
1.4 KiB
YAML
title: New PowerShell Instance Created
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id: ac7102b4-9e1e-4802-9b4f-17c5524c015c
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related:
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- id: 58cb02d5-78ce-4692-b3e1-dce850aae41a
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type: derived
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status: test
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description: Detects the execution of PowerShell via the creation of a named pipe starting with PSHost
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references:
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- https://threathunterplaybook.com/hunts/windows/190610-PwshAlternateHosts/notebook.html
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- https://threathunterplaybook.com/hunts/windows/190410-LocalPwshExecution/notebook.html
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author: Roberto Rodriguez (Cyb3rWard0g), OTR (Open Threat Research)
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date: 2019-09-12
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modified: 2023-11-30
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tags:
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- attack.execution
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- attack.t1059.001
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logsource:
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product: windows
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category: pipe_created
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definition: 'Note that you have to configure logging for Named Pipe Events in Sysmon config (Event ID 17 and Event ID 18). The basic configuration is in popular sysmon configuration (https://github.com/SwiftOnSecurity/sysmon-config), but it is worth verifying. You can also use other repo, e.g. https://github.com/Neo23x0/sysmon-config, https://github.com/olafhartong/sysmon-modular. How to test detection? You can check powershell script from this site https://svch0st.medium.com/guide-to-named-pipes-and-hunting-for-cobalt-strike-pipes-dc46b2c5f575'
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detection:
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selection:
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PipeName|startswith: '\PSHost'
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condition: selection
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falsepositives:
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- Likely
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level: informational
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