High Risk
IP 185.156.73.16 is a high-risk address originating from Ukraine with a threat level of 8/10, linked to sustained port-scanning activity against automated honeypot sensors over a four-month period.
Security monitoring systems logged 1,446 reports associated with this IP across 20 distinct automated honeypot sensors between March and June 2026, yielding a confidence score of 91%. The activity frequency score of 8/10 reflects persistent, repeated scanning behavior rather than isolated probes. The address is allocated to FOP Dmytro Nedilskyi operating through ASN AS211736, placing the source within Ukrainian network infrastructure. The concentration of recent reports centers on CiscoASA port scanning patterns, suggesting the operator is systematically cataloguing exposed network services for potential follow-on exploitation.
Port scanning represents the initial reconnaissance phase of most targeted attacks, where adversaries systematically identify accessible services before launching exploitation attempts. A CiscoASA-specific scan indicates deliberate probing of firewall and security appliance configurations, as these devices frequently host management interfaces or VPN services that, if vulnerable, could provide privileged network access. The scale and duration of activity from IP 185.156.73.16 suggests either automated scanning infrastructure or persistent hostile intent rather than opportunistic scanning.
Network defenders should implement firewall rules restricting inbound access from untrusted sources, particularly targeting management and administrative interfaces. Deploying tools such as fail2ban or similar rate-limiting solutions helps block repeated scanning behavior automatically. Continuous monitoring for scanning patterns and blocking IPs demonstrating sustained hostile reconnaissance activity significantly reduces exposure to subsequent attack vectors.
BG