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MediumMicrosoft Sentinel analytics

Expired access credentials being used in Azure

This query searches for logins with an expired access credential (for example an expired cookie). It then matches the IP address from which the expired credential access occurred with the IP addresses of successful…

Description

This query searches for logins with an expired access credential (for example an expired cookie). It then matches the IP address from which the expired credential access occurred with the IP addresses of successful logins. If there are logins with expired credentials, but no successful logins from an IP, this might indicate an attacker has copied the authentication cookie and is re-using it on another machine.

Detection logic

Detection requirements

Platform
ContainersIaaSIdentity ProviderOffice SuiteSaaS

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

Log source product
azureactivedirectory
Log source service
signinlogs

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