PH_RULE_MS_DefEndpoint_Incident_Generic
Enabled
Microsoft 365 Defender portal triggered an incident of severity medium, high, or unknown
7
Security
Suspicious Activity
No Technique Specified
Application
MS 365 Defender via HTTPS_ADVANCED (Graph API) ,Azure Event Hub via AZURE_PYTHON_SDK
Correlation
Investigate the incident in the MS 365 portal, determine if legitimate
If the following pattern or patterns match an ingested event within the given time window in seconds, trigger an incident.
300 seconds
If the following defined pattern/s occur within a 300 second time window.
ms365defender
This is the named definition of the event query, this is important if multiple subpatterns are defined to distinguish them.
This is the query logic that matches incoming events
eventType CONTAIN "M365Defender-Incident" AND eventSeverityCat IN ("medium","high","unknown")
This defines how matching events are aggregated, only events with the same matching attribute values are grouped into one unique incident ID
incidentTitle,incidentExtTicketId
This is most typically a numerical constraint that defines when the rule should trigger an incident
COUNT(*) >= 1
This section defines which fields in matching raw events should be mapped to the incident attributes in the resulting incident.
The available raw event attributes to map are limited to the group by attributes and the aggregate event constraint fields for each subpattern
incidentTitle=ms365defender.incidentTitle,
incidentExtTicketId=ms365defender.incidentExtTicketId