Severe Risk
IP 37.148.133.247 is a critical-risk address operating from Brazil via AS210356 (BattleHost) that has accumulated 310 abuse reports over a concentrated two-month window between March and April 2026, with the totality of recent detections linked to automated honeypot sensors capturing confirmed hacking activity. The address carries a threat level of 10 out of 10 and an 81 percent confidence score, indicating that security systems have reliably attributed the observed behavior to malicious intent rather than benign misconfiguration or legitimate traffic anomalies.
The 310 total reports against this single IP represent a substantial abuse volume, particularly when considered against an activity frequency rated at 0 out of 10, suggesting that while the address is not currently launching high-frequency campaigns, it maintains a persistent low-level presence in threat intelligence feeds. The honeypot infrastructure cataloging these reports identified TCP stream anomalies consistent with connection-based intrusion techniques, specifically Suricata-generated alerts indicating that the attacking host transmitted TCP FIN packets referencing sessions that did not exist within the sensor's tracking state. This pattern is characteristic of reconnaissance probing, TCP desynchronization attempts, or session-hijacking preparation where the attacker attempts to inject packets into an existing connection by referencing sequence numbers outside the expected window.
The dominant threat classification of hacking encompasses the exploitation of vulnerabilities, unauthorized access attempts, and intrusion activity that automated honeypot systems can reliably distinguish from legitimate network behavior. The TCP-level indicators observed against IP 37.148.133.247 suggest an actor engaged in either port scanning to identify open services, SYN scan techniques to map host topology, or exploitation attempts targeting TCP stack implementations. Such activity poses a concrete risk to any exposed service operating on standard or non-standard ports, as the reconnaissance phase often precedes more targeted exploitation against discovered entry points.
Site operators encountering this IP in their logs should treat it as hostile and implement immediate defensive measures: block or rate-limit traffic from this address at the network perimeter firewall, enforce strong authentication requirements on any accessible services, and deploy intrusion detection rules tuned to recognize anomalous TCP session behavior. Implementing fail2ban or equivalent dynamic blocking tools that automatically respond to honeypot-reported patterns provides an additional layer of automated protection against repeat visits from this or adjacent hostile addresses within the BattleHost AS210356 network block.
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