18.97.19.178📋 Copy

# Intelligence Briefing: 18.97.19.178/32

Classification: Low Risk Cloud Infrastructure

Date: 2026-08-11

Prepared by: IPDebrief Intelligence Team

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## Executive Summary

IP 18.97.19.178 is a low-risk cloud compute host belonging to Amazon Web Services (AWS). The IP operates as a single-service host within the AT-88-Z network block and serves the "Reposify" domain via HTTP (port 80). Current risk assessment indicates minimal threat activity with a score of 25. No active malicious campaigns or known attacker indicators were observed.

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## Ownership and Network Classification

Geolocation data places the IP in Ashburn, Virginia, US (latitude: 39.04, longitude: -77.49). The IP is classified as cloud infrastructure with stable ownership patterns.

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## DNS and Service Profile

• PTR Hostname: scanner-18-97-19-178.reposify.net
• Forward Resolution: scanner-18-97-19-178.reposify.net
• Open Ports: TCP/80 (HTTP)
• Server Banner: Reposify
• HTTP Version: 1.0
• Status Code: 200
• Email Authentication: SPF and DMARC records present

The hostname pattern "scanner-*" indicates this IP may serve monitoring or diagnostic purposes within the Reposify infrastructure.

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## Threat Indicators

No active threat indicators or blacklist entries were identified. The single DNSBL listing represents a minor concern but does not indicate malicious activity.

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## Neighborhood Analysis (18.97.19.0/24)

The subnet exhibits a clean classification with low abuse density. Of 28 sibling IPs, 24 are active, with risk scores predominantly at 0 or 25. No high-risk neighbors were observed.

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## Observation History

Sixteen signals were observed across 26 observations. Key findings include:

• Most Recent: 2026-08-11 — Listed on 1 of 8 DNSBLs with high severity
• HTTP Service: Consistent HTTP/1.0 responses with 200 status codes
• Geolocation: Stable Ashburn, VA placement
• Scan Activity: Port scanning detected on TCP/80 with "Reposify" banner

No significant escalation in threat persistence or malicious behavior was observed over the monitoring period.

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## Relationship Graph

The IP maintains 31 documented relationships:

• DNS Associations: Multiple entries for scanner-18-97-19-178.reposify.net
• Network Associations: Consistent links to AT-88-Z network

All relationships are benign, consistent with cloud infrastructure operations. No suspicious external associations were identified.

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## Security Recommendations

No active security actions are required. The IP's risk profile remains low with no recommended firewall rules or WAF configurations. However, SOC teams should monitor:

1. DNSBL listing activity (currently 1 of 8)

2. Unusual traffic patterns on port 80

3. Any changes to the "scanner-*" hostname pattern

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## Conclusion

IP 18.97.19.178 is a legitimate AWS cloud infrastructure host serving the Reposify domain. The low risk score, clean neighborhood classification, and absence of malicious indicators support continued traffic from this IP. No blocking or filtering actions are recommended at this time.

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