103.18.166.87📋 Copy

## Intelligence Briefing: IP Address 103.18.166.87/32

Classification: HIGH RISK THREAT INDICATOR

Report Date: [Current Date]

Intel Source: IPDebrief Network Intelligence Platform

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Executive Summary

IP address 103.18.166.87 is classified as HIGH RISK with a risk score of 80/100. The address belongs to ASN 132768 (IRT-APNANET4-IN) and is located in India (IN). While currently firewalled with no active services, the IP demonstrates persistent threat activity with multiple blacklist listings and is associated with a subnet showing elevated abuse density (0.4741).

Technical Profile

• ASN: 132768 (IRT-APNANET4-IN)
• Network Block: 103.18.166.0/24
• Geolocation: India (IN) – Regional: Newark (data inconsistency noted)
• Service Status: Firewalled / No Services detected
• DNS Classification: No reverse DNS resolution; no forward resolution
• Open Ports: None detected
• TLS/Certificates: None observed

Threat Indicators

• Blacklist Status: Listed on 4 of 8 DNSBLs (4 DNSBL listings total)
• Threat Feeds: Multiple blacklist indicators present
• Campaign Association: No known campaign matches identified
• Tor Exit Node: No
• Known Attacker: No explicit flag, but high-risk classification applies

Neighborhood Analysis (103.18.166.0/24)

The IP resides within a subnet of 116 sibling addresses with concerning characteristics:

• Abuse Density: 0.4741 (elevated)
• Threat Siblings: 55 IPs flagged as threats
• Active Siblings: 34 IPs currently active
• Risk Distribution: 2 high-risk, 83 medium-risk, 11 low-risk
• Classification: Mixed-use subnet with significant threat presence

Observation History

The IP has generated 17 signal observations, with recent activity detected on 2026-06-26. Historical data indicates:

• Recent Listing Activity: 8 total blacklist listings observed, with 2 current listings at "high" severity
• Persistence: Single threat observation recorded; not persistently malicious
• Route Stability: BGP routing changes detected within the last 30 days

Recommended Actions

Based on the high-risk profile and neighborhood context, the following defensive measures are recommended:

1. Firewall Rules: Implement block rules for 103.18.166.0/24 at perimeter firewall level

2. IDS/IPS Signatures: Deploy detection rules for traffic patterns from this subnet

3. Monitoring: Add 103.18.166.87 to threat intelligence feed watchlists

4. Email Filtering: Block connections from this IP range to prevent phishing/spam sources

Risk Assessment

This IP represents a moderate-to-high threat due to its blacklist associations and subnet-level abuse density. While the target IP itself shows no active services (firewalled), the surrounding subnet demonstrates elevated threat activity. SOC teams should consider blocking the entire /24 subnet as a defensive posture measure.

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*Intel generated by IPDebrief Network Intelligence Platform for defensive security purposes.*

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