158.158.38.215📋 Copy

IP INTELLIGENCE BRIEFING

Target: 158.158.38.215/32

Classification: Microsoft Azure Cloud Infrastructure

Report Date: 2026-07-31

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EXECUTIVE SUMMARY

Target IP 158.158.38.215 is identified as Microsoft Azure cloud infrastructure (ASN 8075) with a moderate risk score of 50. The IP demonstrates clean network behavior within a low-abuse-density subnet. No active threat indicators or known malicious campaigns were detected. Geographic inconsistencies between registered location (Madrid, ES) and probe-based inference (Singapore coordinates) warrant monitoring.

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INFRASTRUCTURE PROFILE

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THREAT ANALYSIS

Active Threat Indicators: None

• No known attacker flags
• Not a Tor exit node or proxy
• No spam source designation
• Zero blacklist abuse confidence score
• No associated threat feeds or campaigns

Network Behavior:

• Service purpose: Firewalled / No Services
• No DNS forward resolution or PTR hostnames
• No TLS certificates or HTTP service banners
• Minimal operator score (0.1304)

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NEIGHBORHOOD CONTEXT

Subnet: 158.158.38.215/24

• Abuse Density: 0 (Clean)
• Total Siblings: 2
• Active Siblings: 2
• Threat Siblings: 0

Neighbor Analysis:

• Single neighboring IP (158.158.38.210) detected with risk score 25
• Risk distribution: 1 low-risk, 0 medium, 0 high

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TEMPORAL HISTORY

Observation Count: 15 signals

Recent Activity (2026-07-31):

• Subnet classification: Clean
• Abuse density: 0
• Operator score: Minimal (0.1304)
• Geographic validation: Plausible (distance 1,550.7 km, avg RTT 95ms)

No evidence of persistent malicious behavior or escalating risk patterns over the observation period.

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RELATIONSHIP GRAPH

Primary Associations:

• All 5 relationship links point to same network entity: MICROSOFT-APNIC-AP
• No external connections to hostnames, organizations, or certificates
• No certificate matches or correlated IPs

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RECOMMENDED ACTIONS

Security Posture: Monitor with caution due to moderate risk classification and DNSBL listings.

Blocking Recommendations:

• Firewall: `iptables -A INPUT -s 158.158.38.215 -j DROP`
• nftables: `nft add rule inet filter input ip saddr 158.158.38.215 drop`
• Cloudflare WAF: Block with expression `ip.src eq 158.158.38.215`
• AWS WAF: Address `158.158.38.215/32`

SOC Analyst Notes:

1. Despite moderate risk score, infrastructure appears benign (Azure cloud, no services exposed)

2. Geographic inconsistency (Spain registration vs Singapore coordinates) may indicate proxying or misconfiguration

3. DNSBL presence (2 of 8 lists) suggests prior reputation issues or false positives

4. Consider allowing traffic if legitimate business relationship exists, as blocking may impact Azure service accessibility

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END OF BRIEFING

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