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66.132.172.42 has a threat confidence score of 70%. This IP address from United States (AS398324, Censys, Inc.) has been observed in 9 honeypot sessions targeting RDP, SSH, SMTP protocols. First observed on March 20, 2026, most recently active March 20, 2026.
Identifies RDP clients attempting authentication using the legacy RDP security mode where credentials are exchanged through the older RDP security layer instead of Network Level Authentication (NLA). This indicates the client negotiated legacy plaintext authentication during the RDP security handshake
SMTP interaction identified as an internet-wide scanning probe originating from Censys infrastructure. The client announces itself via EHLO www.censys.io and issues a STARTTLS request to verify TLS upgrade support and collect service capability metadata. This pattern reflects automated reconnaissance and exposure mapping rather than direct exploitation, but still represents active external probing of the SMTP service.