Exchange Server Suspicious File Downloads.

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'This query looks for messages related to file downloads of suspicious file types on an Exchange Server. This could indicate attempted deployment of webshells. This query uses the Exchange HttpProxy AOBGeneratorLog, you will need to onboard this log as a custom log under the table http_proxy_oab_CL before using this query. This log is commonly found at C:\Program Files\Microsoft\Exchange Server\V15\Logging\OABGeneratorLog on the Exchange server. Details on collecting custom logs into Sentinel

Attribute Value
Type Analytic Rule
Solution Standalone Content
ID 8955c0fb-3408-47b0-a3b9-a1faec41e427
Severity Medium
Kind Scheduled
Tactics InitialAccess
Techniques T1190
Source View on GitHub

Tables Used

This content item queries data from the following tables:

Table Transformations Ingestion API Lake-Only
http_proxy_oab_CL 🔶 ? ?

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