Silk Typhoon Suspicious Exchange Request

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This query looks for suspicious request patterns to Exchange servers that fit a pattern observed by Silk Typhoon actors. The same query can be run on HTTPProxy logs from on-premise hosted Exchange servers. Reference: https://www.microsoft.com/security/blog/2021/03/02/hafnium-targeting-exchange-servers/

Attribute Value
Type Analytic Rule
Solution Standalone Content
ID 23005e87-2d3a-482b-b03d-edbebd1ae151
Severity Medium
Kind Scheduled
Tactics InitialAccess
Techniques T1190
Required Connectors AzureMonitor(IIS)
Source View on GitHub

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