Elastic medium stable eql

Incoming Execution via PowerShell Remoting

Identifies remote execution via Windows PowerShell remoting. Windows PowerShell remoting allows a user to run any Windows PowerShell command on one or more remote computers. This could be an indication of lateral movement.

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Detection Logic

sequence by host.id with maxspan = 30s
   [network where host.os.type == "windows" and network.direction : ("incoming", "ingress") and destination.port in (5985, 5986) and
    source.ip != "127.0.0.1" and source.ip != "::1"]
   [process where host.os.type == "windows" and
    event.type == "start" and process.parent.name : "wsmprovhost.exe" and not process.executable : "?:\\Windows\\System32\\conhost.exe"]

False Positives

⚠ PowerShell remoting is a dual-use protocol that can be used for benign or malicious activity. It's important to baseline your environment to determine the amount of noise to expect from this tool.

Field Validations

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