172.239.26.175📋 Copy

# IP INTELLIGENCE BRIEFING

Subject: 172.239.26.175/32

Date: Current Analysis

Classification: Low Risk – Cloud Infrastructure

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## EXECUTIVE SUMMARY

IP 172.239.26.175 is a Linode cloud compute instance (ASN 63949) presenting low-risk characteristics. The IP is classified as a single-service host with cloud hosting infrastructure. No active threat indicators or known malicious campaigns were detected. The subnet (172.239.26.0/24) shows minimal abuse density (0.0), with no neighboring threat indicators.

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## OWNERSHIP & INFRASTRUCTURE

• Organization: Linode (ASN 63949)
• Infrastructure Type: CloudCompute
• Network Role: Hosting/Cloud Provider
• Geolocation: United States (US)
• CIDR Block: 172.239.0.0/19 (Control Plane)
• DNS Resolution: 172-239-26-175.ip.linodeusercontent.com

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## THREAT INDICATORS

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## NETWORK SERVICES

• Port 22/tcp: SSH Open

- Banner: `SSH-2.0-OpenSSH_10.0p2 Debian-7`

• TLS Certificate: Not detected
• HTTP Services: Not detected

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## SUBNET CONTEXT (172.239.26.0/24)

• Abuse Density: 0 (Clean)
• Classification: Mostly Clean
• Total Siblings: 1
• Threat Siblings: 1
• Risk Inheritance: 2
• Neighbor Activity: Minimal

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## OBSERVATION HISTORY

Recent signal observations indicate consistent cloud infrastructure behavior:

1. Infrastructure Classification: Confirmed as cloud hosting (confidence: 0.90)

2. SSH Service: Debian-based OpenSSH 10.0p2 detected

3. Operator Score: Basic (0.2609)

4. Control Plane: Route stability issues flagged; BGP prefix 172.239.0.0/19

5. DNSBL Status: Listed on 1 of 8 total lists

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## RELATIONSHIP ANALYSIS

• DNS Associations: 33 relationships to linodeusercontent.com hostnames
• Network Relationships: Multiple same-network associations to LINODE
• No External Threat Correlations: No connections to known malicious entities

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## SECURITY RECOMMENDATIONS

Based on the risk profile (Score: 25), the following actions are recommended:

1. Monitor SSH Traffic: The open SSH port indicates active host management. Monitor for unusual login attempts or brute force activity.

2. DNSBL Verification: Investigate the single DNSBL listing to determine the nature of the listing (false positive vs. policy violation).

3. Control Plane Review: Monitor BGP route changes for the 172.239.0.0/19 prefix.

4. No Blocking Required: Current risk score does not warrant blocking; allow traffic with logging enabled.

5. Geolocation Consistency: Verify geolocation data against known Linode datacenter locations.

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## CONCLUSION

IP 172.239.26.175 is a legitimate cloud hosting instance with low-risk characteristics. No evidence of active malicious activity was detected. The single DNSBL listing warrants periodic verification but does not indicate immediate threat. Recommended approach: Allow with monitoring, no blocking required.

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*Analysis generated using IPDebrief Intelligence Platform*

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