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121.175.52.154 has a threat confidence score of 87%. This IP address from South Korea (AS4766, Korea Telecom) has been observed in 19 honeypot sessions and reported 1 times targeting TELNET protocols. Detected attack patterns include telnet busybox payload execution and cleanup. First observed on January 23, 2026, most recently active April 2, 2026.
Identifies post-authentication Telnet activity where an attacker leverages BusyBox to create a payload via echo redirection, enables shell execution, runs commands (sh/system/linuxshell), performs network actions (ping), modifies firewall rules (iptables flush), and removes artifacts via recursive hidden cleanup. Represents full payload staging, execution, and anti-forensics sequence typical of botnet propagation or remote access deployment.
| Reporter | Date | Category | Protocol | Comment |
|---|---|---|---|---|
| User | Mar 21, 2026, 22:11 | Brute Force | TELNET | SikkerGuard: 2 blocked packets |