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212.21.136.133 has a threat confidence score of 59%. This IP address from Bulgaria (AS44247, Videosat 21 Vek OOD) has been observed in 1 honeypot sessions targeting TELNET protocols. Detected attack patterns include telnet busybox multi method payload retrieval and execution. First observed on February 18, 2026, most recently active February 18, 2026.
Identifies a Telnet session where an attacker leverages BusyBox utilities to retrieve a remote payload using one or more file transfer mechanisms (e.g., wget, curl, ftpget, or tftp) followed by execution of the downloaded script via sh. This pattern is consistent with IoT botnet propagation and automated malware deployment.