51.116.117.203📋 Copy

# IP Intelligence Briefing: 51.116.117.203/32

## Executive Summary

Threat Classification: HIGH RISK (Score: 80/100)

Infrastructure Type: CloudCompute (Microsoft Azure)

Location: Frankfurt am Main, Germany (AS8075)

Last Updated: 2026-06-15

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## Risk Profile Assessment

Current Risk Indicators:

• Risk Score: 80 (High Risk classification)
• Blacklist Status: Listed on 5 of 8 DNSBLs
• Threat Pulse Count: 10 active threat indicators
• Reputation: High Risk designation

Network Classification:

• ASN: 8075 (Microsoft Corporation)
• BGP Prefix: 51.116.0.0/16
• Route Stability: UNSTABLE (route changes detected)
• Infrastructure: CloudCompute with firewalled/no services state
• RPKI State: Unknown
• Operator Score: 0.1304 (Minimal)

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## Behavioral Analysis

Observation History (18 signals):

• Most recent activity: 2026-06-15T10:19:04 UTC
• Threat persistence: Active (multiple threat pulses detected)
• Geolocation consistency: Confirmed Frankfurt, DE across multiple probes
• ICMP validation: Blocked (unable to validate)
• Historical threat observation count: 0 (new threat emergence)

Service State:

• Open Ports: None detected
• HTTP Services: None
• TLS Certificates: None
• State: Firewalled / No Services

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## Network Context & Relationships

Subnet Analysis (51.116.117.0/24):

• Abuse Density: 0 (Clean)
• Active Siblings: 1
• Threat Siblings: 0
• Classification: Clean

Network Relationships:

• 18 relationships identified
• All classified as "Same Network" with cloud infrastructure designation
• No direct organizational or hostname relationships detected

Campaign Correlation:

• Campaign Likelihood: None
• Certificate Matches: 0
• Correlated IPs: 0

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## Recommended Actions

Immediate Security Controls:

1. Monitor Closely: Despite clean neighborhood, the 80 risk score warrants active monitoring

2. DNSBL Validation: Investigate the 5 DNSBL listings to identify potential reputation impacts

3. Route Stability: Monitor BGP route changes for AS8075

4. Cloud Context: Treat as Microsoft Azure infrastructure—correlate with Azure abuse patterns

5. Threat Pulse Analysis: Investigate the 10 detected threat pulses for campaign attribution

Firewall Recommendations:

• Block if receiving inbound connections from this IP
• Monitor outbound traffic to/from this IP for C2 patterns
• Consider geo-blocking based on Frankfurt origin if business policy requires

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## Intelligence Assessment

This IP represents a Microsoft Azure cloud instance with elevated risk indicators despite operating in a clean subnet. The high risk score (80) combined with 10 threat pulses and multiple DNSBL listings suggests potential malicious activity. However, the absence of open ports, clean neighborhood profile, and no detected campaigns indicate this may be a compromised cloud asset rather than an actively attacking IP.

Priority: MEDIUM-HIGH (monitor until threat pulses resolve or campaign attribution confirmed)

SOC Analyst Action: Add to watchlist, monitor for outbound connections, correlate with Azure abuse reports, investigate DNSBL listing sources.

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