title: Account Tampering - Suspicious Failed Logon Reasons description: This method uses uncommon error codes on failed logons to determine suspicious activity and tampering with accounts that have been disabled or somehow restricted. author: Florian Roth tags: - attack.persistence - attack.privilege_escalation - attack.t1078 logsource: product: windows service: security detection: selection: EventID: - 4625 - 4776 Status: - '0xC0000072' - '0xC000006F' - '0xC0000070' - '0xC0000413' - '0xC000018C' condition: selection falsepositives: - User using a disabled account level: high