18.97.5.54📋 Copy

# INTELLIGENCE BRIEFING: IP 18.97.5.54/32

Classification: Low Risk / Infrastructure

Date: 2026-07-05

Prepared By: IPDebrief Intelligence Team

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## EXECUTIVE SUMMARY

IP address 18.97.5.54/32 is a low-risk infrastructure address operated by Amazon Web Services (AWS) in Ashburn, Virginia. The IP exhibits no active threat indicators, no known malicious campaigns, and operates with minimal operator score (0.1304). The address is associated with hostname scanner-18-97-5-54.reposify.net and resides within a subnet showing mixed classification with 4 threat-sibling IPs among 11 total siblings.

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## OWNERSHIP & INFRASTRUCTURE

Network Role: Classified as cloud infrastructure with no active services detected. The IP is firewalled with no open ports observed.

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## THREAT INDICATORS

Control Plane Assessment:

• BGP Prefix: 18.97.0.0/18
• Route Stability: False
• DNSSEC: Valid
• DNSBL Listings: 1 of 8 total lists
• Operator Score: 0.1304 (Minimal)
• ICMP Validation: Blocked (unable to validate)

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## DNS & HOSTNAME ASSOCIATIONS

DNS Analysis: Forward resolution confirmed for reposify.net domain. Email authentication records (SPF/DMARC) present. The hostname prefix "scanner-" suggests potential scanning or monitoring activity, though no malicious behavior detected.

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## NEIGHBORHOOD ANALYSIS (18.97.5.0/24)

Notable Neighbors: Multiple IPs within the /24 subnet show risk scores of 25 with authority scores of 50-60, indicating this subnet contains elevated risk addresses alongside the target IP.

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## OBSERVATION HISTORY

Total Observations: 18 signals collected

Recent Activity (2026-07-05):

• Geolocation signals confirmed Ashburn, VA location with 56-85% confidence
• Ownership stability verified (0 ownership changes)
• Subnet abuse density recorded at 0.3636
• No threat persistence days recorded
• No persistent malicious classification

Temporal Analysis:

• Ownership Changes: 0
• Threat Persistence Days: 0
• Threat Observation Count: 0
• Persistently Malicious: False

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## RELATIONSHIP GRAPH

8 relationships identified:

1. Same Network: AT-88-Z (AWS network segment)

2. DNS Association: scanner-18-97-5-54.reposify.net (hostname)

3. Same Network: AT-88-Z (repeated network association)

All relationships indicate standard AWS infrastructure associations with no anomalous connections to external threat actors or malicious networks.

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## RECOMMENDED ACTIONS

Firewall Rules: No blocking rules recommended at this time. The IP presents low risk with no active threat indicators.

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## INTELLIGENCE CONCLUSION

IP 18.97.5.54/32 is a legitimate AWS infrastructure address in Ashburn, Virginia. The address shows no evidence of malicious activity, though it operates within a subnet exhibiting mixed classification with 4 threat-sibling IPs. The hostname association (scanner-*) warrants standard monitoring but does not indicate active scanning activity.

Risk Level: LOW

Confidence: HIGH

Immediate Action: None required; continue standard monitoring.

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