54.39.136.180📋 Copy

## INTELLIGENCE BRIEFING: 54.39.136.180/32

CLASSIFICATION: MODERATE RISK (Score: 40/100)

DATE: 2026-06-19

PREPARED FOR: SOC Analyst

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EXECUTIVE SUMMARY

IP 54.39.136.180 is a cloud hosting infrastructure address operated by OVH SAS within a high-abuse density subnet. The IP is associated with the ahrefs.net domain but shows no active services. Despite moderate individual risk scoring, the subnet exhibits elevated abuse characteristics with 66.8% abuse density.

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INFRASTRUCTURE PROFILE

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THREAT INDICATORS

• Risk Score: 40/100 (Moderate)
• Abuse Confidence: Not explicitly assigned; neighborhood indicates high-abuse classification
• Blacklist Count: 0 (traditional)
• DNSBL Listed: 1 of 8 total lists
• Operator Score: 0.2174 (Minimal)
• Campaign Likelihood: None
• Known Campaigns: 0 matches
• Is Tor Exit: No
• Is Known Attacker: No
• Is Spam Source: No

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NETWORK NEIGHBORHOOD ANALYSIS

Subnet: 54.39.136.0/24

Risk Distribution Among Neighbors:

• High Risk: 0
• Medium Risk: 99
• Low Risk: 1

The subnet demonstrates significant abuse prevalence. Of 182 active sibling addresses, 171 are identified as threats, indicating concentrated malicious activity within this cloud hosting block.

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OBSERVATION HISTORY

Total Observations: 22

Recent Signals (Chronological):

1. 2026-06-19 06:04:34 UTC – Threat detected (Confidence: 0.75). Source: AlienVault OTX. ASN: AS16276 OVH SAS. Location: Beauharnois, QC. Pulse count: 2.

2. 2026-06-18 13:58:35 UTC – Subnet analysis: High abuse classification (0.668 abuse density).

3. 2026-06-18 13:58:15 UTC – Operator score: 0.2174 (Minimal).

Temporal Analysis:

• Ownership changes: 0
• Threat observation count: 1
• Persistently malicious: No
• Threat persistence days: 0

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SERVICE ANALYSIS

• Open Ports: None detected
• TLS Certificate: None
• HTTP Title: None
• Server Banner: None
• Service Purpose: Firewalled / No Services

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GEOLOCATION VALIDATION

Note: Geolocation data indicates implausible distance metrics, suggesting potential data quality issues or routing anomalies.

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RECOMMENDATIONS

Based on the threat profile and neighborhood analysis:

1. Monitoring Priority: MEDIUM – Monitor for outbound connections and command-and-control activity given the high-abuse subnet context

2. Firewall Rules: No explicit deny rules recommended at this time; maintain logging and monitor for suspicious outbound patterns

3. Threat Hunting: Consider correlating with known ahrefs.net infrastructure; investigate any traffic patterns that deviate from expected hosting behavior

4. Subnet Context: Apply heightened scrutiny to all 54.39.136.0/24 addresses; 66.8% abuse density warrants proactive defensive posture

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END OF BRIEFING

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