Managed Sentinel – Alert 216
| Alert ID | MS-A216 |
| Alert Name | IIS pages generating Page Not Found errors (404) |
| Description | This alert identifies Microsoft IIS pages that generate Page Not Found errors (status code 404). |
| Severity Level | Informational |
| Threat Indicator | Misconfiguration |
| MITRE ATT&CK Tactics | Execution |
| Log sources | Web Traffic |
| False Positive | robots.txt missing page |
| Recommendations | A 404 error is an HTTP status code that means that the page you were trying to reach on a website couldn't be found on the web server. 1. Contact your website administrator and inform him about missing pages |