66.232.15.73📋 Copy

INTELLIGENCE BRIEFING: 66.232.15.73

Classification: Moderate Risk | Date: 2026-06-23

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EXECUTIVE SUMMARY

IP 66.232.15.73 is a Single-Service Host registered to Large Bright Investments Limited (ASN 59371) in Hong Kong. The IP presents a Moderate Risk profile (Risk Score: 50) with limited threat indicators but elevated network-level concerns including route instability and DNSBL listings. The subnet shows minimal abuse density with no correlated threat siblings.

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OWNERSHIP & INFRASTRUCTURE

• Organization: Large Bright Investments Limited
• ASN: 59371 (Origin: 66.232.0.0/20)
• Geolocation: Hong Kong (22.4°N, 114.11°E)
• Network Classification: Single-Service Host
• Route Stability: False (route changes detected in 30-day window)

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NETWORK PROFILE

Active Services:

• Port 22/TCP (SSH) – OpenSSH_7.4

DNS Analysis:

• No PTR hostnames recorded
• Zero forward DNS resolutions
• No hosted domains or email authentication (SPF/DMARC absent)

Control Plane:

• DNSSEC: Valid
• DNSBL Status: Listed on 2 of 8 total lists
• RPKI State: Not verified
• BGP Prefix: 66.232.0.0/20

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THREAT INDICATORS

• Known Attacker: No
• Tor Exit Node: No
• Spam Source: No
• Abuse Confidence Score: Not calculated
• Blacklist Count: 0 (profile data) / 2 (control plane DNSBL)
• Threat Feeds: None detected
• Known Campaigns: None correlated

Historical Observations: 19 total signals recorded, most recent on 2026-06-23. One high-confidence geolocation validation (0.90 confidence) confirmed Hong Kong location with 9,173.5km distance from probe origin.

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SUBNET ANALYSIS (66.232.15.0/24)

• Abuse Density: 0% (Clean classification)
• Total Siblings: 1
• Active Siblings: 1
• Threat Siblings: 0
• High Risk Neighbors: 0

The /24 subnet shows minimal malicious activity with no high-risk or medium-risk neighboring IPs.

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SECURITY RECOMMENDATIONS

Based on risk profile and DNSBL listings:

1. Block at perimeter: Recommended for iptables, nftables, pfSense, AWS WAF, Cloudflare WAF

2. Monitor SSH traffic: Only service exposed is SSH; consider rate limiting if traffic is observed

3. No correlation with known campaigns: Current risk appears isolated

Recommended Firewall Rule (iptables):

```

iptables -A INPUT -s 66.232.15.73 -j DROP

```

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ANALYST NOTES

The IP's Moderate Risk rating (50) appears driven by DNSBL listings despite zero abuse confidence scores. Route instability (isRouteStable: false) warrants monitoring for potential infrastructure changes. The single SSH service with no HTTP/HTTPS traffic reduces attack surface. Recommend periodic re-scanning given the route instability flag.

Confidence Level: Medium – Based on 19 historical observations and current profile data.

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