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121.186.52.165 has a threat confidence score of 80%. This IP address from South Korea (AS4766, Korea Telecom) has been observed in 10 honeypot sessions targeting TELNET protocols. Detected attack patterns include telnet shell escalation with busybox execution attempt. First observed on January 27, 2026, most recently active April 2, 2026.
Telnet session exhibiting privilege escalation and shell breakout commands (enable, system, shell, sh) followed by execution of /bin/busybox with a non-standard or arbitrary applet name. The sequence indicates an attempt to escape restricted CLI environments and execute a staged or randomly named payload via BusyBox. The presence of an unknown BusyBox applet strongly suggests automated bot deployment logic rather than legitimate administrative activity.