Silk Typhoon New UM Service Child Process

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This query looks for new processes being spawned by the Exchange UM service where that process has not previously been observed before. Reference: https://www.microsoft.com/security/blog/2021/03/02/hafnium-targeting-exchange-servers/

Attribute Value
Type Analytic Rule
Solution Standalone Content
ID 95a15f39-d9cc-4667-8cdd-58f3113691c9
Severity Medium
Kind Scheduled
Tactics InitialAccess
Techniques T1190
Required Connectors SecurityEvents, WindowsSecurityEvents, WindowsSecurityEvents, WindowsForwardedEvents
Source View on GitHub

Tables Used

This content item queries data from the following tables:

Table Selection Criteria Transformations Ingestion API Lake-Only
SecurityEvent ?
WindowsEvent EventID == "4688" ?

Associated Connectors

The following connectors provide data for this content item:

Connector Solution
ESI-Opt34DomainControllersSecurityEventLogs Microsoft Exchange Security - Exchange On-Premises
SecurityEvents Windows Security Events
WindowsForwardedEvents Windows Forwarded Events
WindowsSecurityEvents Windows Security Events

Solutions: Microsoft Exchange Security - Exchange On-Premises, Windows Forwarded Events, Windows Security Events


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