4.193.136.141📋 Copy

# IPDEBRIEF INTELLIGENCE BRIEFING

Target: 4.193.136.141/32

Classification: Microsoft Azure Cloud Infrastructure

Briefing Date: 2026-07-28

Analyst: IPDebrief SOC Intelligence

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## EXECUTIVE SUMMARY

IP address 4.193.136.141 is a Microsoft Azure cloud compute resource registered to Microsoft Corporation (ASN 8075). The IP maintains a low-risk profile (Risk Score: 25) with no active threat indicators. The address is part of the 4.192.0.0/12 Microsoft infrastructure block, hosted in Boston, US-MA. No open services or exposed ports were detected.

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## INFRASTRUCTURE PROFILE

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## THREAT ASSESSMENT

Risk Score: 25 (Low Risk)

• Abuse Confidence Score: Not applicable
• Known Attacker: No
• Spam Source: No
• Tor Exit Node: No
• Blacklist Count: 0 (Profile), 1 listing (DNSBL observation)
• Threat Persistence: 0 days

Control Plane Analysis

• Route Stability: Unstable (30-day route changes detected)
• RPKI State: Not available
• DNSSEC Valid: True
• MoAS Status: No

DNSBL Status

• Listed Count: 1 out of 8 DNSBL lists
• Max Severity: High (observed in most recent signal)
• Implication: Single DNSBL listing requires review but does not indicate active malicious activity

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## NETWORK BEHAVIOR

Services Exposure

• Open Ports: None detected
• TLS Certificate: None
• HTTP Banner: None
• Connection Type: Firewalled / No Services
• Service Purpose: Cloud infrastructure (no public-facing services exposed)

DNS Analysis

• PTR Record: Not configured
• Forward Resolution: None
• Hosted Domains: 0
• Email Auth Records: SPF: No, DMARC: No

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## HISTORICAL OBSERVATIONS

Total Observations: 13 signals tracked

Observation Window: 2026-07-28

Recent Signal Summary:

• DNSSEC validation confirmed (true)
• ASN/BGP prefix data consistent (4.192.0.0/12, ASN 8075)
• Organization confirmed: Microsoft Corporation
• One high-severity DNSBL listing detected

Temporal Indicators:

• Ownership changes: 0
• Threat observation count: 0
• Persistently malicious: No

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## NEIGHBORHOOD ANALYSIS

Subnet: 4.193.136.141/24

Abuse Density: 0.0 (Clean)

Classification: Clean

Total Siblings: 1

Active Siblings: 0

Threat Siblings: 0

Risk Distribution: High: 0, Medium: 0, Low: 0

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## RELATIONSHIP GRAPH

Related Entities: 1

• Type: Same Network (MSFT)
• Target: Microsoft Corporation network infrastructure

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## RECOMMENDED ACTIONS

Current Risk Level: Low

Recommended Actions: None

Firewall Rules: Not required

Analysis: No active threat indicators detected. The IP is a standard Microsoft Azure infrastructure address with no open ports, no known malicious associations, and a clean neighborhood profile. Monitoring continues at standard frequency.

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## INTELLIGENCE CONCLUSIONS

IP 4.193.136.141 is a legitimate Microsoft Azure cloud infrastructure endpoint with low risk characteristics. The single DNSBL listing (high severity) warrants periodic review but does not indicate active compromise. No firewall blocking or special handling is recommended. The IP should be treated as a benign cloud service address within Microsoft's managed infrastructure.

SOC Team Action: Monitor at standard frequency. No immediate action required.

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