45.43.63.207📋 Copy

# IP INTELLIGENCE BRIEFING

Target IP: 45.43.63.207/32

Classification: High Risk Infrastructure

Date of Analysis: 2026-07-22

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## Executive Summary

IP 45.43.63.207 is a high-risk infrastructure address associated with UCLOUD (ASN 135377), operating within the ZL-HKG-UCLOUD-0061 CIDR block. The IP carries a risk score of 80/100 and is currently firewalled with no active services detected. The address is listed on four DNSBL entries and exhibits geographic data inconsistencies between US and Asian sources.

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## Technical Profile

Ownership & Registration:

• Organization: UCLOUD
• ASN: 135377
• CIDR Block: 45.43.63.0/24
• RIR: ARIN
• Abuse Contact: Available via RDAP
• Netname: ZL-HKG-UCLOUD-0061

Geolocation:

• Primary Location: Hong Kong, Singapore (consensus)
• Secondary Source: US (confidence 0.35)
• Accuracy Radius: 2500 km
• Status: Geographic data validation inconsistent across sources

Network Classification:

• Service Purpose: Firewalled / No Services
• Open Ports: None detected
• Is Cloud: False
• Is CDN/Proxy/VPN: False
• Is Tor Exit: False

Threat Indicators:

• Risk Score: 80/100
• DNSBL Lists: 4 of 8 total lists
• Known Campaigns: None correlated
• Blacklist Count: 0 (direct profile)
• Operator Score: 0.1304 (Minimal)

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## Observation History

Thirteen signal observations recorded. Recent activity indicates:

• Ownership signals stable with no changes detected
• Geolocation signals show conflicting data between US and Hong Kong/Singapore sources
• No persistent malicious behavior observed
• Threat persistence days: 0

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## Network Relationships & Neighborhood

Related Entities:

• Three relationship entries all reference network ZL-HKG-UCLOUD-0061

Subnet Analysis (45.43.63.0/24):

• Active Siblings: 1 identified
• Neighbor IP: 45.43.63.16 (Risk Score: 55/100)
• Abuse Density: 0 (low)
• Risk Distribution: 1 medium-risk IP, 0 high/low-risk IPs

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## Risk Assessment

Primary Concerns:

1. Elevated risk score (80) despite no direct threat indicators

2. DNSBL listing on four lists suggests prior reputation issues

3. Geographic data inconsistency may indicate spoofing or multi-region infrastructure

4. Single high-risk neighbor (45.43.63.16) in same /24 subnet

Mitigating Factors:

• No active services or open ports detected
• No known attacker or spam source classification
• No correlation with known malicious campaigns
• No evidence of persistent malicious behavior

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## Recommended Actions

Firewall Rules:

```

# Block high-risk infrastructure IP

iptables -A INPUT -d 45.43.63.207 -j DROP

# Consider blocking entire /24 subnet due to elevated neighborhood risk

iptables -A INPUT -d 45.43.63.0/24 -j DROP

```

Additional Recommendations:

• Monitor neighboring IP 45.43.63.16 for activity
• Implement DNSBL monitoring for UCLOUD-registered addresses
• Review historical DNS queries for potential C2 beacon patterns

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Intel Source: IPDebrief Network Intelligence Platform

Classification: Internal Threat Intelligence

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