IMPORTANT: No additional bug fixes or documentation updates will be released for this version. For the latest information, see the current release documentation.

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Suspicious WMI Event Subscription Created

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Suspicious WMI Event Subscription Created

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Detects the creation of a WMI Event Subscription. Attackers can abuse this mechanism for persistence or to elevate to SYSTEM privileges.

Rule type: eql

Rule indices:

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

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:

Tags:

Domain: Endpoint
OS: Windows
Use Case: Threat Detection
Tactic: Persistence
Data Source: Sysmon
Data Source: Elastic Defend

Version: 306

Rule authors:

Elastic

Rule license: Elastic License v2

Rule query

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any where
 (
   (event.dataset == "windows.sysmon_operational" and event.code == "21" and
    winlog.event_data.Operation : "Created" and winlog.event_data.Consumer : ("*subscription:CommandLineEventConsumer*", "*subscription:ActiveScriptEventConsumer*")) or

   (event.dataset == "endpoint.events.api" and event.provider == "Microsoft-Windows-WMI-Activity" and process.Ext.api.name == "IWbemServices::PutInstance" and
    process.Ext.api.parameters.consumer_type in ("ActiveScriptEventConsumer", "CommandLineEventConsumer"))
 )

Framework: MITRE ATT&CK^TM

Tactic:
- Name: Persistence
- ID: TA0003
- Reference URL: https://attack.mitre.org/tactics/TA0003/
Technique:
- Name: Event Triggered Execution
- ID: T1546
- Reference URL: https://attack.mitre.org/techniques/T1546/
Sub-technique:
- Name: Windows Management Instrumentation Event Subscription
- ID: T1546.003
- Reference URL: https://attack.mitre.org/techniques/T1546/003/

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