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178.156.223.13 has a threat confidence score of 93%. This IP address from United States (AS213230, Hetzner Online GmbH) has been observed in 15 honeypot sessions targeting SSH protocols. Detected attack patterns include ssh hardened host profiling and shell rc immutability bypass. First observed on March 16, 2026, most recently active March 16, 2026.
Identifies SSH post-auth activity combining resilient multi-source CPU enumeration (explicit /usr/bin/nproc fallback) with removal of the immutable flag from ~/.shellrc via chattr, indicating host profiling followed by shell configuration tampering for persistence preparation.