Microsoft Entra ID Rare UserAgent App Sign-in

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This query establishes a baseline of the type of UserAgent (i.e. browser, office application, etc) that is typically used for a particular application by looking back for a number of days. It then searches the current day for any deviations from this pattern, i.e. types of UserAgents not seen before in combination with this application.

Attribute Value
Type Analytic Rule
Solution FalconFriday
ID 87d5cd18-211d-4fd4-9b86-65d23fed87ea
Severity Medium
Status Available
Kind Scheduled
Tactics DefenseEvasion
Techniques T1036
Required Connectors AzureActiveDirectory, AzureActiveDirectory
Source View on GitHub

Tables Used

This content item queries data from the following tables:

Table Transformations Ingestion API Lake-Only
AADNonInteractiveUserSignInLogs ?
SigninLogs ?

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