137.131.8.253📋 Copy

# IP Intelligence Briefing: 137.131.8.253/32

Classification: Moderate Risk (Score: 50/100)

Analysis Date: 2026-08-06

Source: IPDebrief Intelligence Platform

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## Executive Summary

IP address 137.131.8.253 is assigned to Oracle Corporation (ASN 31898) within the ORACLE-4 network block (137.131.0.0/16). The IP is located in Phoenix, Arizona, USA and operates as Oracle Cloud infrastructure. No active malicious indicators detected. Risk elevation driven by listing on 2 DNS blacklists out of 8 total lists checked. Network shows no open services and is classified as firewalled with no active host services.

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## Ownership & Network Profile

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## Threat Indicators

• Blacklist Status: Listed on 2 DNS blacklists (2/8 total lists)
• Known Attacker: No
• Spam Source: No
• Tor Exit Node: No
• Active Threat Campaigns: None identified
• Abuse Confidence Score: Not calculated

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## Historical Analysis

Observation history reveals 11 signals collected on 2026-08-06. Ownership attribution consistently shows Oracle Corporation across multiple probe sessions. Geolocation data remains stable (Phoenix, AZ) with high confidence scores (0.70-0.95). No ownership changes or threat persistence observed. The IP maintains consistent network classification throughout the observation window.

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## Neighborhood Assessment

Subnet analysis of 137.131.8.253/24 indicates:

• Neighbor count: 0
• Abuse density: 0
• No sibling IPs flagged for abuse activity
• Inherited risk: 0

The surrounding subnet shows no concentrated abuse patterns, suggesting this IP operates in isolation from malicious activity clusters.

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## Technical Observations

• DNS: No PTR hostnames; no forward resolution confirmed
• Services: No open ports detected; no TLS certificates; no HTTP services
• Control Plane: Route stable; RPKI state pending; DNSSEC valid
• Behavioral: No honeypot hits; no enumeration strikes; no WAF violations

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## Recommended Actions

Based on risk score 50, the following defensive measures are recommended:

```bash

# iptables

iptables -A INPUT -s 137.131.8.253 -j DROP

# nftables

nft add rule inet filter input ip saddr 137.131.8.253 drop

# nginx

deny 137.131.8.253;

# pfSense

137.131.8.253/32

# Cloudflare WAF

{"description": "Block 137.131.8.253 — IPDebrief risk score 50", "action": "block", "filter": {"expression": "ip.src eq 137.131.8.253"}}

# AWS WAF

{"Addresses": ["137.131.8.253/32"], "Description": "IPDebrief risk 50"}

```

---

## SOC Analyst Assessment

Threat Level: LOW-MODERATE

While the IP carries a moderate risk score (50), the profile indicates legitimate Oracle Cloud infrastructure with no evidence of active exploitation, scanning, or malicious command-and-control behavior. The 2 DNS blacklist listings warrant monitoring but do not constitute confirmed malicious activity.

Recommended Handling:

1. Block inbound traffic at perimeter firewall using provided rules

2. Monitor for any changes in DNS resolution or service availability

3. No immediate threat hunting required; observe for 7-14 days

4. Update blocklist if new threat indicators emerge

Confidence: High — based on comprehensive profile analysis and historical observation data.

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