OAuth Token Abuse - Unusual Cloud Access
This rule detects potential OAuth token abuse by correlating credential consent grants with subsequent unusual cloud access patterns from different geographic locations. It looks for activities like adding a service principal, adding OAuth2 permission grants, or consenting to an application, followed by access to specific cloud applications (Salesforce, Drift, Slack, Microsoft 365, Workday) from an IP address that does not match the IP address from which the consent was granted. The rule aggregates these events and triggers if there are at least 4 related events within a 6-hour window.
Microsoft Sentinel (KQL)
