117.50.51.198📋 Copy

# IPDEBRIEF INTELLIGENCE BRIEFING

Target: 117.50.51.198/32

Classification: Moderate Risk / Potentially Malicious

Date: 2026-06-22

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## Executive Summary

IP 117.50.51.198 presents a moderate risk threat profile (Score: 65/100) originating from China via UCloud infrastructure. The address demonstrates elevated risk characteristics including DNSBL listings, unstable routing, and presence in a subnet with active threat activity. Recommended defensive posture is monitoring with potential blocking based on organizational tolerance.

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## Risk Profile

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## Threat Indicators

Blacklist Status:

• Listed on 3 DNSBL feeds (of 8 total)
• Maximum severity: High
• No known attacker attribution
• No association with known campaigns

Control Plane Analysis:

• BGP Prefix: 117.50.32.0/19
• Route Stability: Unstable
• RPKI State: Not verified
• IRR Consistency: Not verified

Network Classification:

• Infrastructure Type: Generic
• Connection Type: Unknown
• Cloud/CDN/VPN/Proxy: None detected

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## Neighborhood Assessment

Subnet: 117.50.51.0/24

• Abuse Density: 1 (Moderate)
• Classification: Mostly Clean
• Total Siblings: 2
• Active Siblings: 0
• Threat Siblings: 2
• Neighbor Risk: 117.50.51.119 (Score: 25, Authority: 50)

The IP shares its /24 subnet with two threat-identified siblings, indicating potential coordinated abuse or shared infrastructure.

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## Observation History (17 Observations)

Recent Signals:

• 2026-06-22: Listed on 8 blacklists, 2 high-severity
• 2026-06-17: Port scanning activity detected
• 2026-06-17: Geolocation inference (CN, 52% confidence)
• 2026-06-17: Operator score: 0.1304 (Minimal)

Temporal Analysis:

• Ownership Changes: 0
• Threat Persistence: 0 days
• Observation Count: 1
• Persistent Malicious Status: False

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## Relationships

15 related entities identified, all classified as "Same Network" (UCLOUD-NET). No hostname, organization, or certificate associations detected.

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## Recommended Actions

Immediate

1. Increase logging verbosity for traffic from this IP

2. Implement firewall blocking per risk profile (Score 65)

Technical Controls

• iptables: `iptables -A INPUT -s 117.50.51.198 -j DROP`
• nftables: `nft add rule inet filter input ip saddr 117.50.51.198 drop`
• nginx: `deny 117.50.51.198;`
• Cloudflare WAF: Block IP with expression `ip.src eq 117.50.51.198`
• AWS WAF: Block CIDR 117.50.51.198/32

Monitoring

• Review recent activity logs for patterns
• Monitor for additional IPs in 117.50.51.0/24 subnet
• Watch for DNSBL updates

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## Conclusion

The IP demonstrates moderate risk with no confirmed persistent malicious behavior but shows evidence of blacklisting and scanning activity. The subnet context (2 threat siblings) warrants heightened awareness. Block recommendation is appropriate for high-security environments; logging and monitoring sufficient for lower-risk contexts.

Classification: Moderate Risk - Monitor/Block Based on Policy

Priority: Medium

Status: Active

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