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.

Rule type: eql

Rule indices:

winlogbeat-*
logs-endpoint.events.*
logs-windows.*

Severity: medium

Risk score: 47

Runs every: 5m

Searches indices from: now-9m (Date Math format, see also Additional look-back time)

Maximum alerts per execution: 100

References:

https://docs.microsoft.com/en-us/powershell/scripting/learn/remoting/running-remote-commands?view=powershell-7.1

Tags:

Elastic
Host
Windows
Threat Detection
Lateral Movement

Version: 101

Rule authors:

Elastic

Rule license: Elastic License v2

Rule query

edit

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

Framework: MITRE ATT&CK^TM

Tactic:
- Name: Lateral Movement
- ID: TA0008
- Reference URL: https://attack.mitre.org/tactics/TA0008/
Technique:
- Name: Remote Services
- ID: T1021
- Reference URL: https://attack.mitre.org/techniques/T1021/

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