3.90.136.225📋 Copy

# Intelligence Briefing: IP 3.90.136.225/32

## Executive Summary

IP address 3.90.136.225/32 is identified as a low-risk infrastructure resource hosted on Amazon Web Services (AWS) in the Ashburn, VA data center. The IP demonstrates consistent cloud hosting characteristics with no malicious activity detected. No immediate defensive action is recommended based on current threat intelligence.

---

## Technical Profile

Risk Assessment:

• Risk Score: 25 (Low Risk)
• Provider Score: 0
• Authority Score: 0
• Stability Label: Basic

Ownership & Network Classification:

• ASN: 16509 (AMAZON-02)
• Organization: Amazon Data Services Northern Virginia
• Netname: AMAZON-IAD
• CIDR Block: 3.80.0.0/12
• Infrastructure Type: CloudCompute
• Network Role: Provider/Cloud Hosting

Geolocation:

• Country: United States (US)
• Region: Virginia (VA)
• City: Ashburn
• Coordinates: 39.04, -77.49
• Timezone: America/New_York

---

## Threat Indicators

Malicious Activity Status:

• Known Attacker: False
• Spam Source: False
• Tor Exit Node: False
• Blacklist Count: 0
• Threat Feeds: None
• Known Campaigns: None

Control Plane Analysis:

• DNSBL Listed: 1 of 8 total lists
• Route Stability: False
• BGP Prefix: 3.64.0.0/10
• RPKI State: Not assessed
• Operator Score: 0.2609 (Basic)

---

## DNS & Service Analysis

DNS Resolution:

• PTR Hostname: ec2-3-90-136-225.compute-1.amazonaws.com
• Forward Resolution: Confirmed
• Domain: amazonaws.com
• Forward Hostnames: 1 confirmed

Service Exposure:

• Open Ports: None detected
• TLS Certificates: None
• HTTP Services: None detected
• Server Banner: None
• Status: Firewalled / No Services

---

## Historical Analysis

Observation Timeline:

• Total Observations: 21 signals
• Most Recent: 2026-06-20T23:15:36
• Observation Types: ASN, network classification, operator scoring, geolocation

Signal Evolution:

• Consistent AWS infrastructure classification across all observations
• Geolocation signals consistently point to US (Ashburn, VA)
• No significant risk escalation or degradation patterns
• Ownership stable with no changes recorded

---

## Relationship Graph

Connected Entities:

• DNS Associations: 55 total relationships
• Hostname Associations: ec2-3-90-136-225.compute-1.amazonaws.com (repeated)
• Network Association: AMAZON-IAD
• External Relationships: None suspicious

Campaign Correlation:

• Likelihood: None
• Cert Matches: 0
• Correlated IPs: 0

---

## Neighborhood Analysis

Subnet: 3.90.136.225/24

• Abuse Density: 0 (Clean)
• Classification: Mostly Clean
• Inherited Risk: 2
• Active Siblings: 1
• Threat Siblings: 1
• Neighbor Count: 0

---

## Recommended Actions

Security Recommendations:

• Firewall Rules: None required (low-risk infrastructure)
• Monitoring Priority: Standard
• Threat Response: No action needed

Classification Flags:

• Is Cloud: True
• Is CDN: False
• Is VPN: False
• Is Proxy: False
• Is Hosting: True
• Is Mobile: False
• Is Residential: False
• Is Bogon: False
• Is Anycast: False

---

## Intelligence Narrative

IP 3.90.136.225/32 represents a standard AWS EC2 instance deployed in the Northern Virginia data center. The IP has been operating within expected cloud infrastructure parameters, with DNS resolution consistently mapping to the Amazon compute endpoint. No open services are exposed, indicating proper security hardening and firewall configuration typical of cloud workloads.

The historical signal trail demonstrates stability with no evidence of malicious transformation or compromise. The IP does not appear in any threat feeds, and the surrounding /24 subnet shows minimal abuse density. The single DNSBL listing is likely routine and not indicative of active malicious behavior.

SOC Analyst Guidance:

This IP requires standard cloud infrastructure monitoring. No blocking or investigation is warranted based on current threat intelligence. If this IP appears in alerting systems, verify context against expected AWS operational patterns before escalating.

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