172.174.5.146📋 Copy

# IP INTELLIGENCE BRIEFING: 172.174.5.146/32

Date: 2026-06-18

Classification: Moderate Risk

Risk Score: 65/100

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## EXECUTIVE SUMMARY

IP address 172.174.5.146 is associated with Microsoft Azure infrastructure (ASN 8075) and has been flagged as a moderate-risk endpoint. The IP shows evidence of blacklist presence with 3 active listings out of 8 total, maximum severity rated "high" as of June 18, 2026. While geolocation data indicates US (Washington, VA), there are validation inconsistencies and cross-continental reputation signals. No active services, open ports, or certificate infrastructure detected.

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## INFRASTRUCTURE PROFILE

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## THREAT INDICATORS

Blacklist Status: 3 active listings, 8 total (max severity: high)

DNSBL Lists: 3/8

Threat Feeds: None correlated

Campaign Matches: 0

Known Attacker: No

Tor Exit Node: No

Spam Source: No

Key Observations:

• Listed on multiple threat feeds as of 2026-06-18
• AlienVault OTX correlation detected (2026-06-13)
• Geolocation inconsistencies (claimed DE coordinates vs US registration)

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## NETWORK BEHAVIOR & SERVICES

Open Ports: None detected

TLS Certificates: None

HTTP Services: None

DNS Resolution: Forward resolution count: 0

PTR Hostnames: None

Network Role: Firewalled / No Services

Abuse Confidence: Insufficient data for scoring

Operator Score: 0.2174 (Minimal)

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## NEIGHBORHOOD ANALYSIS

Subnet: 172.174.5.146/24

Abuse Density: 0

Classification: Mostly Clean

Threat Siblings: 1

Active Siblings: 0

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## OBSERVATION HISTORY

Total observations: 23

Recent Activity:

• 2026-06-18: Listed on multiple blacklists (3 active, max severity high)
• 2026-06-17: ICMP probe validation failed (blocked)
• 2026-06-13: AlienVault OTX correlation from Germany (DE)

Persistence: Threat observation count: 1

Is Persistently Malicious: No

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## RELATIONSHIP GRAPH

Total relationships: 46

Primary Connections: Same Network (cloud infrastructure)

Correlated Entities: 41 additional cloud network associations

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## RECOMMENDED ACTIONS

Priority: High

Category: Monitoring

Firewall Rules:

• iptables: `iptables -A INPUT -s 172.174.5.146 -j DROP`
• nftables: `nft add rule inet filter input ip saddr 172.174.5.146 drop`
• nginx: `deny 172.174.5.146;`
• pfSense: `172.174.5.146/32`
• Cloudflare WAF: Block IP (expression: `ip.src eq 172.174.5.146`)
• AWS WAF: Add 172.174.5.146/32 to blocked addresses

Recommendation: Implement blocking rules and enable enhanced logging to correlate with any inbound connection attempts. Review historical traffic patterns for potential lateral movement indicators.

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Analyst Notes: Risk score elevated due to blacklist presence. While no active services detected, the IP should be monitored for potential exploitation attempts. Consider contextual blocking based on organizational threat posture.

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