Windows Unusual Count Of Disabled Users Failed Authentication Using Kerberos

This analytic identifies a source endpoint failing to authenticate with multiple disabled domain users using the Kerberos protocol. It leverages Windows EventCode 4768, which is generated when the Key Distribution Center issues a Kerberos Ticket Granting Ticket (TGT) and detects failure code `0x12` (credentials revoked). This behavior is significant as it may indicate a Password Spraying attack targeting disabled accounts, potentially leading to initial access or privilege escalation. If confirmed malicious, attackers could gain unauthorized access or elevate privileges within the Active Directory environment.