51.161.65.186📋 Copy

# IP Intelligence Briefing: 51.161.65.186/32

## Executive Summary

IP 51.161.65.186 presents a moderate risk profile (Risk Score: 40) with concerning geolocation inconsistencies and high-abuse subnet characteristics. While no active threat indicators were observed, the IP operates within an OVH-hosted cloud environment with elevated neighborhood abuse density.

## Infrastructure Profile

• Organization: Dmytro, Ahrefs Pte Ltd (ASN 16276)
• Network: OVH-CUST-281059690 (51.161.65.0/24)
• Infrastructure Type: CloudCompute, Hosting
• DNS Resolves: proxy-ca011-san186.ahrefs.net
• Status: Firewalled / No Services detected

## Geolocation Anomalies

Critical inconsistency detected: IP geolocation reports country as Canada (CA) with city listed as Singapore, yet RTT measurements show 27ms latency. For a 6,082km distance, minimum possible RTT should be 121.6ms. This violation indicates potential spoofed or inaccurate geolocation data requiring validation.

## Neighborhood Risk Assessment

The /24 subnet (51.161.65.0/24) demonstrates elevated abuse characteristics:

• Abuse Density: 0.7305 (High Abuse classification)
• Threat Siblings: 187 of 256 total IPs
• Inherited Risk Score: 29
• Active Siblings: 212 of 256 IPs

Abuse density increased from 0.6055 to 0.7305 between 14-19 June 2026, indicating escalating subnet-level activity.

## Threat Indicators

• Known Attacker: No
• Spam Source: No
• Tor Exit Node: No
• Blacklist Count: 0
• Known Campaigns: None identified
• DNSBL Listed: 1 of 8 total lists

## Observation History

Signal monitoring reveals progressive subnet degradation over the past 5 days. Abuse density climbed 20% while maintaining high-abuse classification. No new threat categories emerged during this observation window.

## Recommended Actions

Based on risk profile, consider the following firewall rules:

```bash

# iptables

iptables -A INPUT -s 51.161.65.186 -j DROP

# nftables

nft add rule inet filter input ip saddr 51.161.65.186 drop

# nginx

deny 51.161.65.186;

# Cloudflare WAF

Expression: ip.src eq 51.161.65.186, Action: block

# AWS WAF

Addresses: 51.161.65.186/32

Description: IPDebrief risk 40

```

## Analyst Notes

• Monitor for service emergence (current state: no open ports)
• Validate actual geolocation through independent sources
• Subnet-level blocking may be warranted given 0.73 abuse density
• No immediate threat indicators present, but elevated neighborhood risk suggests defensive posture

Classification: Moderate Risk / Monitoring Recommended

Last Updated: 2026-06-19

This summary was generated by AI and may contain inaccuracies. Verify critical details independently.