Synopsis
Activation Period |
14 Days |
Training Period |
30 Days |
Test Period |
N/A (single event) |
Deduplication Period |
1 Day |
Required Data |
|
Detection Modules |
Identity Threat Module |
Detector Tags |
Active Directory Federation Services Analytics |
ATT&CK Tactic |
|
ATT&CK Technique |
|
Severity |
Informational |
Description
A user attempted to sign in using an invalid SAML. This might indicate a Golden SAML attack.
Attacker's Goals
An attacker might forge a valid SAML token to impersonate other user accounts. This is used to gain persistent, unauthorized access to cloud resources, and bypassing MFA.
Investigative actions
- Check for recent changes to the SAML signing certificate on both the Identity Provider and the Service Provider to rule out a configuration drift or expiration issue.
- Check for other correlated alerts on on-premises systems that may be related to the Golden SAML attack.
- Look for signs that the user account is compromised (e.g. abnormal logins, unusual activity).