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45.156.129.68 has a high threat confidence level of 72%, originating from Portugal, on the Sistemas Informaticos, S.A. network (211680). It has been observed across 131 sessions targeting HTTPS, IMAP, SIP, FTP, TELNET and 5 other protocols, First observed on January 20, 2026, most recently active March 5, 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.
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 HTTPS requests targeting the web server root path ("/"), typically used for initial service discovery, host validation, or baseline content inspection prior to deeper enumeration