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45.144.212.237 has a threat confidence score of 98%. This IP address from Ukraine (AS214940, Kprohost LLC) has been observed in 228 honeypot sessions and reported 4 times targeting SMTP protocols. Detected attack patterns include smtp open relay probe. First observed on February 25, 2026, most recently active March 19, 2026.
Automated SMTP interaction sequence consistent with open-relay validation or spam delivery testing. The client performs a full transaction flow (EHLO → RSET → MAIL FROM → RCPT TO → DATA → QUIT) and submits a minimal test message containing known probe markers such as t_Smtp.LocalIP. This pattern indicates scripted activity attempting to confirm whether the server allows unauthenticated message relaying or outbound mail submission. Such behavior is commonly observed from spam bot infrastructure validating targets before larger abuse campaigns.
| Reporter | Date | Category | Protocol | Comment |
|---|---|---|---|---|
| User | Mar 19, 2026, 22:51 | Brute Force | SMTP | SikkerGuard: 2 blocked packets |
| User | Mar 19, 2026, 16:52 | Brute Force | SMTP | SikkerGuard: 2 blocked packets |
| User | Mar 10, 2026, 01:34 | Brute Force | SMTP | SikkerGuard: 2 blocked packets |
| User | Feb 27, 2026, 12:46 | Brute Force | SMTP | SikkerGuard: 2 blocked packets |