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20.55.35.128 has a threat confidence score of 81%. This IP address from United States (AS8075, Microsoft Corporation) has been observed in 152 honeypot sessions targeting HTTPS, HTTP, FTP, IMAP, ELASTICSEARCH and 13 other protocols. Detected attack patterns include https autodiscover powershell probe. First observed on January 21, 2026, most recently active April 12, 2026.
HTTPS request to /autodiscover/autodiscover.json with a query string containing @zdi/Powershell.
HTTP request using GET method.
Identifies HTTP requests targeting the web server root path ("/"), typically used for initial service discovery, host validation, or baseline content inspection prior to deeper enumeration.
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.