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45.91.81.111 has a threat confidence score of 98%. This IP address from United States (AS8796, FASTNET DATA INC) has been observed in 65 honeypot sessions targeting SSH protocols. Detected attack patterns include ssh authorized keys persistence established. First observed on March 11, 2026, most recently active March 19, 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.