142.44.233.176📋 Copy

# IP INTELLIGENCE BRIEFING: 142.44.233.176/32

## EXECUTIVE SUMMARY

Threat Level: Moderate Risk (Score: 40/100)

Classification: High-Abuse Cloud Infrastructure

Recommendation: Block at perimeter with monitoring

## OWNERSHIP & INFRASTRUCTURE

Provider: OVH (ASN: 16276)

Organization: Dmytro, Ahrefs Pte Ltd

CIDR Block: 142.44.233.0/24

Infrastructure Type: CloudCompute / Hosting

Geolocation: Disputed — ASN registration indicates Canada (CA), but geolocation probes report Singapore with 3000km accuracy radius. Geovalidation flagged as implausible.

DNS Resolution: proxy-ca003-san176.ahrefs.net (ahrefs.net domain)

Network Role: Firewalled / No Services (no open ports detected)

## THREAT INDICATORS

Direct Threat Signals: None detected

Blacklist Status: 0 direct blacklists; 1 DNSBL listing among 8 total lists

Threat Feeds: No known campaign associations

Tor/Proxy Status: Not a Tor exit node, proxy, or VPN

Abuse Confidence Score: Not scored

Critical Observation: No direct threat indicators despite moderate risk score. Risk appears driven by network-level factors.

## NEIGHBORHOOD ANALYSIS

Subnet Classification: HIGH_ABUSE

Abuse Density: 0.7344 (73.44% of subnet flagged)

Threat Siblings: 188 of 256 total IPs in /24

Active Siblings: 198 currently operational

Risk Distribution Across Subnet:

• High Risk: 0 IPs
• Medium Risk: 94 IPs
• Low Risk: 6 IPs

The /24 subnet exhibits concentrated abuse density, suggesting systematic misconfiguration or shared infrastructure risk rather than isolated malicious activity.

## OBSERVATION HISTORY

Total Observations: 21 signals

Temporal Analysis:

• Recent classification (2026-06-21): Cloud hosting infrastructure (OVH)
• Previous classification (2026-06-16): High-abuse subnet with 0.7344 abuse density
• Consistent operator score: 0.2174 (Minimal)
• No ownership changes detected
• Threat persistence: 0 days (not persistently malicious)

The IP has maintained consistent infrastructure characteristics throughout observation period with no escalation in threat profile.

## NETWORK RELATIONSHIPS

Primary Associations:

• Network: OVH-CUST-281059682 (multiple relationship entries)
• DNS: proxy-ca003-san176.ahrefs.net (multiple DNS associations)

No unique correlation to known malicious infrastructure. Relationships indicate standard hosting infrastructure.

## RECOMMENDED ACTIONS

Based on risk profile and neighborhood context:

Immediate Blocking Rules:

• iptables: `iptables -A INPUT -s 142.44.233.176 -j DROP`
• nftables: `nft add rule inet filter input ip saddr 142.44.233.176 drop`
• pfSense: `142.44.233.176/32`
• nginx: `deny 142.44.233.176;`

WAF Integration:

• Cloudflare WAF: Block with expression `ip.src eq 142.44.233.176`
• AWS WAF: Add `142.44.233.176/32` to blocked addresses

Monitoring Context: Consider blocking entire /24 subnet if business permits, given 73.44% abuse density and 188 threat siblings. However, individual IP assessment recommended for least-privilege approach.

## INTELLIGENCE NOTES

1. Risk score of 40 driven primarily by high-abuse subnet density, not direct threat activity

2. Geolocation discrepancy (Canada vs Singapore) suggests potential routing manipulation or data inconsistency

3. No open ports detected indicates either legitimate firewalled service or dormant/abused infrastructure

4. DNS hostname suggests association with ahrefs.net (SEO tools service) — verify legitimate business use before blocking

Analyst Decision Required: Block individual IP or subnet based on business impact analysis and threat tolerance.

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*Intelligence generated via IPDebrief automated analysis. Validate against internal threat intelligence before implementing blocking rules.*

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