140.207.15.4📋 Copy

IP Intelligence Briefing: 140.207.15.4

Date: 2026-06-02

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**1. Risk Assessment**

• Overall Risk Score: 80 (High Risk)
• Provider Score: 0 (Unrated)
• Authority Score: 0 (Unrated)
• Stability Score: 0 (Unrated)
• Threat Indicators: Clean (no malicious activity, no blacklisted domains, no known attackers).

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**2. Ownership & Geolocation**

• ASN: AS17621 (ChinaUnicom Hostmaster)
• Country: China (CN)
• Region: Shanghai (SH)
• City: Pudong
• Network Type: Residential (classified as "firewalled / no services").

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**3. Network & Threat Context**

• ISP: ChinaUnicom (SH) – associated with residential and enterprise networks.
• Services: No open ports or TLS services detected.
• DNS: Invalid DNSSEC validation, potential resolution issues.
• BGP: Route stability flagged as "unstable" (route changes in last 30 days).
• DNSBL: Listed in 5/8 DNSBLs (potential spam or abuse risk).

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**4. Observation History**

• Recent Activity:

- DNS resolution attempts (invalid DNSSEC).

- Residential network classification.

- No persistent threats or campaign correlations.

• Behavioral Flags: No honeypot hits, enumeration attempts, or WAF violations.

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**5. Network Relationships**

• Linked Networks: UNICOM-SH (same ISP).
• Subnet: 140.207.15.4/24 (no active neighbors detected).
• Abuse Density: 0% (clean subnet).

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**6. Recommendations**

• Monitor: Track DNS resolution attempts and BGP route stability.
• Block/Allow: Consider blocking based on residential classification if traffic is suspicious.
• Verify: Validate DNSSEC and check for upstream ISP abuse reports.
• Context: No direct threats, but residential networks may have lower security postures.

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Note: No actionable firewall rules generated due to lack of explicit threats. Use network behavior analytics to monitor for anomalies.

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