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112.213.111.77 has a high threat confidence level of 67%, originating from Hong Kong, on the CTG Server Limited network (152194). It has been observed across 73 sessions targeting SSH, First observed on January 20, 2026, most recently active February 8, 2026.
Attempts to remove filesystem attribute protections (e.g., immutable flags via chattr -i/-a) from the user’s ~/.ssh directory. This pattern indicates preparatory activity to modify SSH trust configuration, commonly preceding insertion or replacement of authorized_keys for persistence.