Entra ID Excessive Permission Changes to Application
This rule detects when an excessive number of permissions are changed for an application within Microsoft Entra ID (formerly Azure AD). While adding permissions is a normal activity, a sudden increase in the number of permissions granted to an application, exceeding a defined threshold (currently 5), could indicate malicious activity such as an attacker attempting to escalate privileges or broaden access for a compromised application. The rule specifically looks for 'Update application' events in Azure AD Directory Audit logs where the 'RequiredResourceAccess' attribute changes significantly.
YARA-L
