3.11.165.131📋 Copy

## INTELLIGENCE BRIEFING: 3.11.165.131/32

Classification: Amazon EC2 Infrastructure Instance

Risk Level: Moderate (Score: 50/100)

Date: 2026-08-06

Prepared by: IPDebrief Intelligence Team

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EXECUTIVE SUMMARY

IP 3.11.165.131 is an Amazon Web Services EC2 instance located in the EU-West-2 (London) region. The address resolves to `ec2-3-11-165-131.eu-west-2.compute.amazonaws.com` and presents moderate risk (score 50) with no active threat indicators. The IP exhibits standard cloud infrastructure behavior with no open services detected.

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INFRASTRUCTURE PROFILE

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THREAT ASSESSMENT

Risk Indicators:

• Abuse Confidence: Not classified as known attacker
• Threat Feeds: No active campaigns identified
• Blacklist Status: Listed on 2 of 8 DNSBLs
• Tor Exit Node: No
• Spam Source: No

Behavioral Analysis:

• No open ports identified
• TLS certificate and HTTP services not detected
• No honeypot hits recorded
• Enumeration strikes: 0

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OBSERVATION HISTORY

The IP has generated 13 signal observations, most recent on 2026-08-06. Key findings:

• Ownership: Consistently identified as Amazon Data Services UK via ARIN
• Operator Score: 0.2609 (Basic classification)
• Geo Consensus: Mixed signals (UK primary, one conflicting US geolocation entry with 35% confidence)
• Route Stability: False (dynamic BGP routing typical of cloud environments)
• Threat Persistence: 0 days (no persistent malicious activity observed)

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NETWORK RELATIONSHIPS

• DNS Associations: ec2-3-11-165-131.eu-west-2.compute.amazonaws.com
• Related Entities: Single hostname association (EC2 instance identifier)
• Subnet Context: 3.11.165.0/24 — No sibling IPs identified (standard for EC2 instances)

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RECOMMENDED ACTIONS

No specific blocking recommendations required for this IP given moderate risk profile and confirmed AWS infrastructure status.

Optional Mitigation Controls:

```bash

# If blocking is required for operational policy:

iptables -A INPUT -s 3.11.165.131 -j DROP

nft add rule inet filter input ip saddr 3.11.165.131 drop

# Cloudflare WAF: Block IP with expression: ip.src eq 3.11.165.131

```

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INTELLIGENCE NOTES

• This is legitimate cloud infrastructure, not a malicious IP
• DNSBL listings may represent false positives from automated scanners
• No evidence of command-and-control, spam, or scanning activity
• Monitor for unusual traffic patterns if this IP appears in threat feeds

Status: Legitimate AWS infrastructure. No immediate threat detected.

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