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UnknownMicrosoft Sentinel analytics

Anomalous Geo Location Logon

Adversaries may steal the credentials of a specific user or service account using credential access techniques or capture credentials earlier in their reconnaissance process through social engineering as a means of…

Description

Adversaries may steal the credentials of a specific user or service account using credential access techniques or capture credentials earlier in their reconnaissance process through social engineering as a means of gaining initial access. APT33, for example, has used valid accounts for initial access. The query below generates an output of a successful sign-in performed by a user from a new geolocation he has never connected to before and none of his peers as well.

Detection logic

Detection requirements

Platform
ContainersESXiIaaSIdentity ProviderLinuxmacOSNetwork DevicesOffice SuiteSaaSWindows

The rule states no platform. This is derived from the ATT&CK technique it maps to.

Log source product
azureactivedirectorybehavioranalytics
Log source service
behavioranalyticssigninlogs

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