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212.21.136.182 has a threat confidence score of 76%. This IP address from Bulgaria (AS44247, Videosat 21 Vek OOD) has been observed in 3 honeypot sessions targeting TELNET protocols. Detected attack patterns include telnet shell breakout with busybox payload execution. First observed on April 13, 2026, most recently active April 13, 2026.
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.