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121.237.11.223 has a threat confidence score of 99%. This IP address from China (AS4134, Chinanet) has been observed in 68 honeypot sessions targeting SSH protocols. Detected attack patterns include ssh interactive environment profiling with access consolidation, ssh authorized keys persistence established. First observed on March 31, 2026, most recently active April 1, 2026.
Identifies an SSH session performing multi-method system profiling (CPU model extraction, memory and disk inspection, active user/process monitoring), followed by SSH key replacement and password update indicative of interactive access validation and consolidation rather than single-shot automated takeover.
Removal of filesystem attribute protections from the user’s .ssh directory followed by deletion and recreation of the directory and insertion of a new public key into authorized_keys. This pattern reflects deliberate modification of SSH trust configuration to establish persistent key-based access.