Extreme Threat
IP 45.153.34.32 is a critical-risk address originating from the Netherlands with a threat level of 10 out of 10 and a confidence rating of 89%, supported by 583 total abuse reports and an activity frequency rated 8 out of 10. This address, operating through AS51396 under Pfcloud UG, has been flagged primarily for general hacking activity including intrusion attempts and unauthorized access probes since its first report in August 2025, with its most recent activity logged in June 2026.
The detection volume of 583 reports across automated honeypot sensors over approximately ten months translates to a sustained campaign of malicious activity rather than isolated probing. The ICMP-based communication pattern detected—specifically packets indicating administrative prohibition—suggests network reconnaissance or testing of firewall rule configurations, a common precursor to more targeted intrusion attempts. The Netherlands-based hosting infrastructure provides the geographic origin, while the AS51396 ASN indicates commercial cloud or hosting services often exploited by threat actors for anonymity.
The hacking classification encompasses a broad spectrum of intrusion methodologies, from vulnerability exploitation attempts to credential-based brute-force operations against exposed services. With a threat level this severe and report volume this high, the concrete risk to any exposed service includes unauthorized system access, data exfiltration, lateral movement within networks, and potential compromise leading to further attack campaigns. The administrative prohibition responses observed indicate this IP is actively probing network boundaries and testing defensive configurations.
Site operators should immediately block this IP at the firewall level given its confirmed malicious status. Implementing rate-limiting on authentication endpoints and employing defensive tools such as fail2ban can mitigate credential-based attacks. Continuous monitoring of access logs for patterns consistent with this IP's observed reconnaissance activity, combined with prompt patching of vulnerable services, will reduce exposure to the intrusion techniques this address employs.
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