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Query shows 1200+ failed attempts by cIP per hour on server, then successful logon. Only includes > 1 user agent string or port. Could indicate successful probing and brute force success on IIS servers.
| Attribute | Value |
|---|---|
| Type | Hunting Query |
| Solution | Standalone Content |
| ID | 934011da-1fe6-4507-aadb-d3914c877bcd |
| Tactics | CredentialAccess |
| Techniques | T1110 |
| Required Connectors | AzureMonitor(IIS) |
| Source | [View on GitHub](https://github.com/Azure/Azure-Sentinel/blob/master/Hunting Queries/W3CIISLog/Potential_IIS_BF.yaml) |
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