51.77.66.107📋 Copy

# IPDEBRIEF INTELLIGENCE BRIEFING

Target: 51.77.66.107/32

Classification: LOW RISK — Cloud Compute Infrastructure

Date: June 28, 2026

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## EXECUTIVE SUMMARY

IP 51.77.66.107 is a low-risk cloud hosting server operated by OVH GmbH (ASN 16276) from Germany. The address hosts web services (HTTP/HTTPS) and SSH with standard Let's Encrypt TLS certification. Despite a single DNSBL listing among eight total lists, the IP shows no active threat indicators, no known campaign associations, and consistent infrastructure classification across observation history. No immediate blocking or restrictive actions are warranted; however, the DNSBL listing warrants periodic monitoring.

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## INFRASTRUCTURE PROFILE

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## NETWORK CHARACTERISTICS

• DNS Resolution: serv107.eureka-communication.com (forward confirmed)
• Open Ports: TCP/80 (HTTP), TCP/443 (HTTPS), TCP/22 (SSH)
• TLS Certificate: Let's Encrypt (CN=serv107.eureka-communication.com)
• Server Banner: Apache/2.4.62 (Unix) OpenSSL/1.0.2k-fips
• Control Plane: BGP prefix 51.77.0.0/16, route stability confirmed
• DNSBL Status: Listed on 1 of 8 threat feeds

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## THREAT INTELLIGENCE ASSESSMENT

Active Indicators

• No threat indicators detected across current threat feeds
• Not a Tor exit node or proxy
• No known campaign associations
• No identified attacker signatures
• Not a spam source

Observed Signals (Recent)

• June 28, 2026: Cloud infrastructure classification (OVH), German geolocation, no proxy/VPN/Tor characteristics
• June 19, 2026: Consistent OVH hosting classification, neighborhood classification "mostly_clean"
• Total Observations: 25 historical signals

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## NEIGHBORHOOD ANALYSIS

Subnet: 51.77.66.107/24

Classification: mostly_clean

Abuse Density: 0

Risk Distribution: No high/medium/low risk neighbors identified

Active Siblings: 0 detected

The /24 subnet shows minimal abuse activity and no correlated threat indicators.

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## RELATIONSHIP MAPPING

The IP maintains 54 relationship associations, including:

• DNS Associations: serv107.eureka-communication.com
• Network Associations: SD-LIM1-LIM114B-1G (repeated infrastructure references)

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## RECOMMENDED ACTIONS

Current Risk Level: LOW — No immediate action required

Monitoring Recommendations:

1. DNSBL Listing: Investigate the single blacklist listing to determine the specific feed and rationale

2. Periodic Review: Monitor for changes in DNSBL status or emergence of threat indicators

3. Traffic Analysis: Evaluate if traffic patterns align with expected web server behavior

4. No Blocking Required: No firewall rules or blocking recommended at this time

Firewall Rules: None generated — IP passes low-risk classification thresholds

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## INTELLIGENCE CONCLUSION

IP 51.77.66.107 represents standard cloud hosting infrastructure with minimal risk profile. The single DNSBL listing is the only anomaly requiring attention. Continued monitoring of the DNSBL status and threat feed correlations is sufficient for threat intelligence coverage. No immediate defensive actions are warranted beyond standard observation.

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Report Generated By: IPDebrief Intelligence Platform

Data Sources: IPDebrief Profile, History, Relationships, Neighborhood, Actions

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