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26 lines
779 B
YAML
26 lines
779 B
YAML
title: PowerShell Network Connections
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status: experimental
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description: "Detects a Powershell process that opens network connections - check for suspicious target ports and target systems - adjust to your environment (e.g. extend filters with company's ip range')"
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author: Florian Roth
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references:
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- https://www.youtube.com/watch?v=DLtJTxMWZ2o
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logsource:
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product: windows
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service: sysmon
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detection:
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selection:
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EventID: 3
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Image: '*\powershell.exe'
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filter:
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DestinationIp:
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- '10.*'
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- '192.168.*'
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- '172.*'
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- '127.0.0.1'
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DestinationIsIpv6: 'false'
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User: 'NT AUTHORITY\SYSTEM'
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condition: selection and not filter
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falsepositives:
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- Administrative scripts
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level: low
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