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2021-07-13 20:41:58 +00:00
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parent 16534f4c1b 4c41a5c635
commit 573bfd84fd
2 changed files with 11 additions and 6 deletions
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detections/endpoint/detect_wmi_event_subscription_persistence.yml
+10 -5
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@@ -11,11 +11,16 @@ description: 'The following analytic identifies the use of WMI Event Subscriptio
event occurs. WMI subscription execution is proxied by the WMI Provider Host process
(WmiPrvSe.exe) and thus may result in elevated SYSTEM privileges. This analytic
is restricted by commonly added process execution and a path. If the volume is low
enough, remove the values and flag on any new subscriptions.
All event subscriptions have three components
Filter - WQL Query for the events we want. EventID equals 19
Consumer - An action to take upon triggering the filter. EventID equals 20
Binding - Registers a filter to a consumer. EventID equals 21
enough, remove the values and flag on any new subscriptions.\
All event subscriptions have three components \
1. Filter - WQL Query for the events we want. EventID equals 19 \
1. Consumer - An action to take upon triggering the filter. EventID equals 20 \
1. Binding - Registers a filter to a consumer. EventID equals 21 \
Monitor for the creation of new WMI EventFilter, EventConsumer, and FilterToConsumerBinding.
It may be pertinent to review all 3 to identify the flow of execution. In addition,
EventCode 4104 may assist with any other PowerShell script usage that registered
detections/endpoint/wmi_permanent_event_subscription___sysmon.yml
+1 -1
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@@ -12,7 +12,7 @@ description: 'This analytic looks for the creation of WMI permanent event subscr
WMI subscription execution is proxied by the WMI Provider Host process (WmiPrvSe.exe)
and thus may result in elevated SYSTEM privileges. This analytic is restricted by
commonly added process execution and a path. If the volume is low enough, remove
the values and flag on any new subscriptions.
the values and flag on any new subscriptions.\
All event subscriptions have three components \