157.211.1.171📋 Copy

INTELLIGENCE BRIEFING: 157.211.1.171/32

Classification: Moderate Risk Infrastructure IP

Date: 2026-07-27

Analyst: SOC Intelligence Team

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EXECUTIVE SUMMARY

IP 157.211.1.171 is a moderate-risk infrastructure address associated with Australian hosting provider IRT-AU-AUSSIEFIBRE (ASN: 4764). The IP shows no active malicious indicators, no open services, and exhibits stable ownership characteristics. Minor DNSBL listings present a low-level concern requiring monitoring but no immediate blocking.

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PROFILE DATA

Ownership & Classification

• Organization: IRT-AU-AUSSIEFIBRE
• Network: AUSSIEFIBRE-AU (157.211.0.0/16)
• ASN: 4764
• Country: Australia (AU)
• Region: Queensland
• City: Brisbane
• RIR: ARIN
• Registration Date: Not available

Risk Assessment

• Overall Risk Score: 55 (Moderate Risk)
• Provider Score: 0 (Legitimate Provider)
• Authority Score: 0
• Threat Persistence: 0 days
• Persistent Malicious Indicator: False

Network Classification

• Provider/Hosting: Yes
• Infrastructure Type: None detected
• Cloud/CDN/VPN/Proxy: No
• Tor Exit Node: No
• Known Attacker: No
• Spam Source: No
• Open Ports: None (Firewalled)
• Service Purpose: Firewalled / No Services

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THREAT INTELLIGENCE

Active Threat Indicators

• Abuse Confidence Score: None
• Blacklist Count: 3
• DNSBL Listed Count: 3 / 8 total lists
• Threat Feeds: None
• Known Campaigns: None
• Correlated IPs: 0
• Certificate Matches: 0

Behavioral Analysis

• Honeypot Hits: 0
• Enumeration Strikes: 0
• WAF Violations: 0
• Total Incidents: 0

Network Connectivity

• Hop Count: 14
• First Hop RTT: 0.2ms
• Last Hop RTT: 299ms
• Timed Out Hops: 3
• Transit Networks: Comcast, Lumen

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OBSERVATION HISTORY (14 Observations)

Recent signal activity recorded July 27, 2026:

• Ownership Signals: Stable, no ownership changes detected
• Geolocation: Consistent Australia assignment (AUSSIEFIBRE-AU)
• DNS Resolution: No forward resolution, no PTR records
• Port Scanning: Ports scanned with no open services detected
• TLS/HTTP: No certificates, titles, or banners detected

Temporal Analysis

• Ownership Changes: 0
• Threat Observation Count: 0
• Persistence Days: 0
• Pattern: Stable infrastructure IP with no behavioral escalation

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RELATIONSHIP GRAPH

Direct Relationships: 2

• Type: Same Network (AUSSIEFIBRE-AU)
• External Entities: None
• Related Hostnames: None
• Related Organizations: None
• Associated Certificates: None

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NEIGHBORHOOD ANALYSIS (157.211.1.0/24)

Subnet Characteristics

• Total Siblings: 0
• Active Siblings: 0
• Threat Siblings: 0
• Abuse Density: 0
• Risk Distribution: High: 0, Medium: 0, Low: 0
• Inherited Risk: 0

Assessment: Clean subnet with no adjacent threat activity. No correlation to neighboring IP risk profiles.

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RECOMMENDATIONS

Immediate Actions

• Monitor: Maintain observation; no immediate blocking required
• DNSBL: Investigate 3 DNSBL listings if traffic impact occurs
• Firewall: No specific rules needed; IP is firewalled
• Traffic Analysis: Monitor for unexpected outbound connections from this IP

Strategic Guidance

• Threat Level: Low-Moderate
• Block Decision: Do not block; legitimate infrastructure provider
• Investigation Priority: Low
• Correlation Required: None

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CONCLUSION

IP 157.211.1.171 is a stable, non-malicious infrastructure address belonging to Australian hosting provider AUSSIEFIBRE. The moderate risk score (55) reflects DNSBL listings rather than active threat behavior. No open services, no malicious indicators, and no neighborhood threats detected. SOC teams should maintain standard monitoring without aggressive blocking measures.

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