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52.146.21.59 has a threat confidence score of 51%. This IP address from United States (AS8075, Microsoft Corporation) has been observed in 40 honeypot sessions targeting SIP, DOCKER, WINRM, HTTP, MSSQL and 4 other protocols. First observed on January 21, 2026, most recently active April 7, 2026.
Client repeatedly sends GET requests to the /bad-request Docker API endpoint, indicating malformed or incompatible traffic against the Docker daemon. This pattern is typically associated with generic internet scanning or tools attempting HTTP interaction without speaking the proper Docker API protocol.
Identifies HTTP GET requests directly targeting the /bad-request path, indicating automated or manual probing of application error-handling routes rather than legitimate navigation flow.