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[Rule Tuning] Suspicious WMI Event Subscription Created #4618

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Merged
w0rk3r merged 3 commits into from
Apr 16, 2025
Merged

[Rule Tuning] Suspicious WMI Event Subscription Created #4618

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0cc409c
[Rule Tuning] Suspicious Execution via Scheduled Task
w0rk3r Apr 7, 2025
e327a00
Merge branch 'main' into rt_0
w0rk3r Apr 15, 2025
19f11ed
[Rule Tuning] Suspicious WMI Event Subscription Created
w0rk3r Apr 15, 2025
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8 changes: 4 additions & 4 deletions rules/windows/persistence_sysmon_wmi_event_subscription.toml
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Original file line number Diff line number Diff line change
Expand Up @@ -2,7 +2,7 @@
creation_date = "2023/02/02"
integration = ["windows", "endpoint"]
maturity = "production"
updated_date = "2025/01/15"
updated_date = "2025/04/15"
min_stack_version = "8.15.0"
min_stack_comments = "Elastic Defend WMI events were added in Elastic Defend 8.15.0."

Expand Down Expand Up @@ -40,10 +40,10 @@ query = '''
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
?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"))
(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"))
)
'''
note = """## Triage and analysis
Expand Down
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