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201.71.144.239 has a threat confidence score of 99%. This IP address from Brazil (AS28635, AVATO TECNOLOGIA S.A) has been observed in 38 honeypot sessions targeting TELNET protocols. Detected attack patterns include telnet busybox shell activation with capability check, telnet shell breakout with busybox payload execution, telnet busybox multi method payload retrieval and execution. First observed on January 26, 2026, most recently active February 20, 2026.
Identifies a Telnet session where BusyBox is leveraged to activate or access a shell environment (sh, shell, system, linuxshell, enable) followed by command capability validation (ping). This pattern reflects deliberate shell breakout and execution-context validation commonly observed in IoT botnets and embedded Linux compromise workflows. The presence of multiple shell invocation variants combined with BusyBox applet usage indicates adaptive execution logic rather than incidental command usage.
Telnet session exhibiting privilege escalation and shell breakout attempts (enable, system, linuxshell, shell, sh) followed by execution of /bin/busybox with a non-standard or arbitrary applet name. The combination indicates an automated attempt to escape restricted CLI environments and execute a staged or randomly named payload via BusyBox. This pattern is characteristic of IoT/Linux bot deployment frameworks leveraging BusyBox as a universal execution wrapper.
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.