18.97.19.187📋 Copy

## IP Intelligence Briefing: 18.97.19.187/32

Executive Summary

The IP address 18.97.19.187 is a Moderate Risk (40/100) address hosted on Amazon Web Services infrastructure in Ashburn, VA. The IP operates within a /24 subnet classified as high-abuse density (0.5385) with 7 threat siblings. No active open services were detected, though the DNS hostname indicates scanning activity.

---

Infrastructure Profile

Ownership: Amazon Technologies Inc. (AS14618)

Infrastructure Type: Cloud Compute / Hosting

Network Role: AWS Cloud Infrastructure

Geolocation: Ashburn, VA, US (39.04, -77.49)

DNS Resolution: scanner-18-97-19-187.reposify.net

PTR Hostnames: scanner-18-97-19-187.reposify.net

Forward Resolution: Confirmed

---

Risk Assessment

Risk Score: 40/100 (Moderate Risk)

Abuse Confidence: Not explicitly scored

Blacklist Status: 0 blacklists

Risk Factors:

• Located in high-abuse-density subnet (18.97.19.0/24)
• DNS hostname contains "scanner" designation
• 7 of 13 active siblings in subnet flagged as threats
• Subnet classification: high_abuse

Mitigating Factors:

• No open ports/services detected
• No known threat indicators or campaign associations
• No persistent malicious activity detected
• Provider infrastructure (AWS) with enterprise security controls

---

Neighborhood Context

Subnet: 18.97.19.187/24

Total Siblings: 13

Active Siblings: 10

Threat Siblings: 7

Abuse Density: 0.5385

Notable Neighbors:

---

Temporal Analysis

Observations: 21 total historical signals

Ownership Stability: No changes detected

Threat Persistence: 0 days (no persistent malicious activity)

Recent Activity: Latest observations from 2026-06-15 show consistent high-abuse subnet classification

---

Threat Indicators

Threat Indicators: None detected

Campaign Associations: None

Known Attacker: No

Spam Source: No

Tor Exit Node: No

Proxy/VPN: No

---

Recommended Security Actions

Firewall Rules:

```bash

# iptables

iptables -A INPUT -s 18.97.19.187 -j DROP

# nftables

nft add rule inet filter input ip saddr 18.97.19.187 drop

# nginx

deny 18.97.19.187;

# pfSense

18.97.19.187/32

```

Cloud Platform Recommendations:

Cloudflare WAF:

```json

{

"description": "Block 18.97.19.187 — IPDebrief risk score 40",

"action": "block",

"filter": {

"expression": "ip.src eq 18.97.19.187"

}

}

```

AWS WAF:

```json

{

"Addresses": ["18.97.19.187/32"],

"Description": "IPDebrief risk 40"

}

```

---

Intelligence Narrative

IP 18.97.19.187 represents a moderate-risk AWS infrastructure endpoint operating within a high-abuse-density subnet. The DNS hostname "scanner-18-97-19-187.reposify.net" indicates the IP may be used for scanning operations or as part of a broader reconnaissance infrastructure. While no active open services were detected, the IP's contextual placement within a subnet containing 7 threat siblings warrants defensive monitoring.

The IP shows no signs of persistent malicious activity or known campaign associations. However, the combination of the scanner designation hostname and high-abuse subnet classification suggests this IP may be part of automated infrastructure that could be leveraged for reconnaissance or lateral movement attempts.

Recommended Action: Implement blocking at perimeter security controls. Given the moderate risk score and lack of immediate threat indicators, this should be combined with other contextual signals before enforcement. Monitor for any changes in service availability or behavioral patterns.

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