Critical Threat
185.243.5.28 is a critical-risk IP address operating from Hong Kong infrastructure (ASN AS23470, RELIABLESITE) that has generated 329 abuse reports since December 2025, with all recent activity classified as general hacking intrusion attempts. With a threat level of 10/10 and a 94% confidence score, this address represents one of the most maliciously active sources currently targeting internet-facing systems and poses a severe threat to any exposed service.
Automated honeypot sensors detected this IP conducting systematic intrusion attempts over a compressed timeframe from December 2025 through January 2026. The 329 total reports and activity frequency rating of 8/10 indicate sustained, high-volume hostile operations rather than opportunistic scanning. All 20 of the most recent reports categorise the activity as general hacking, indicating a focused campaign of exploitation attempts against vulnerable services. Its origin in Hong Kong and RELIABLESITE ASN designation places it within commercial hosting infrastructure commonly leveraged by threat actors for anonymity and operational resilience.
General hacking activity encompasses a broad spectrum of unauthorised access attempts, vulnerability exploitation, and intrusion operations against internet-facing systems. The sustained, high-frequency engagement with honeypot infrastructure suggests automated tooling designed to identify and compromise unpatched or misconfigured services at scale. For exposed networks, the real-world risk includes potential unauthorised access to sensitive data, complete system compromise, lateral movement within internal infrastructure, or enrolment into larger botnet operations.
Network operators should block this IP address at the firewall or edge-device level given its confirmed malicious behaviour. Implementing dynamic blocking tools such as fail2ban can automatically respond to repeated intrusion patterns. Enforcing strong authentication on all internet-facing services, maintaining current patch cycles, and deploying intrusion detection systems significantly reduce exposure to automated exploitation attempts. Proactive log monitoring for connections originating from this IP enables early identification of compromise attempts.
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