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131.161.249.165 has a threat confidence score of 100%. This IP address from Brazil (AS264403, CMTECH Com.e Serv.de Informatica Ltda) has been observed in 494 honeypot sessions targeting SSH protocols. Detected attack patterns include ssh authorized keys persistence established, ssh automated post compromise recon and persistence chain. First observed on January 22, 2026, most recently active March 20, 2026.
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.
Identifies an SSH session performing comprehensive automated host reconnaissance (CPU, memory, disk, processes, users), followed by credential modification and SSH key manipulation consistent with scripted post-compromise takeover and persistence establishment.