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45.156.128.77 has a threat confidence score of 77%. This IP address from Portugal (AS211680, Sistemas Informaticos, S.A.) has been observed in 186 honeypot sessions targeting HTTPS, IMAP, TELNET, SIP, MONGODB and 6 other protocols. First observed on January 21, 2026, most recently active March 20, 2026.
Client sends RTSP OPTIONS requests to check supported methods and confirm that an RTSP service is exposed, then disconnects without attempting authentication or stream setup. This pattern is typically associated with automated reconnaissance or internet-wide scanning rather than active stream access.
Identifies HTTPS requests targeting the web server root path ("/"), typically used for initial service discovery, host validation, or baseline content inspection prior to deeper enumeration
FTP session where the client issues AUTH TLS to upgrade the connection to Transport Layer Security. This reflects protocol-level encryption negotiation prior to further interaction.
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.