15.235.27.85📋 Copy

# IP INTELLIGENCE BRIEFING: 15.235.27.85

## EXECUTIVE SUMMARY

IP address 15.235.27.85 is classified as MODERATE RISK (Risk Score: 50) with mixed threat indicators. The IP resolves to afirewalled Ahrefs infrastructure but operates within a high-abuse subnet. Despite the hosting provider's enterprise reputation, the subnet environment shows elevated abuse activity requiring defensive posture awareness.

## TECHNICAL PROFILE

• IP Address: 15.235.27.85/32
• Risk Score: 50 (Moderate Risk)
• ASN: 16276 (OVH SAS)
• Organization: Dmytro, Ahrefs Pte Ltd
• Netblock: 15.235.27.0/24
• Infrastructure: CloudCompute / Hosting (OVH)
• Geolocation: Canada (reported); Singapore (consensus)
• DNS PTR: proxy-ca013-san85.ahrefs.net
• Service Status: Firewalled / No services detected

## THREAT INDICATORS

• Blacklist Status: Listed on 8 DNSBLs (2 confirmed listings)
• Known Attacker: No
• Tor Exit Node: No
• Spam Source: No
• Active Threat Feeds: None observed
• Campaign Correlation: No matches detected

## NETWORK ENVIRONMENT ANALYSIS

Subnet Risk Assessment: HIGH ABUSE

• Abuse Density: 51.95% (133 threat siblings out of 256 total)
• Active Siblings: 168
• Risk Distribution: 100 medium-risk neighbors, 0 high-risk
• Subnet Classification: High-abuse density indicates shared infrastructure environment with elevated compromise risk

Control Plane Stability:

• BGP Prefix: 15.235.0.0/17
• Route Changes (30 days): 0
• Route Stability: False (inconsistent routing behavior)
• RPKI State: Not validated
• IRR Consistency: Not assessed

## OBSERVATION HISTORY

17 historical signals tracked. Recent activity includes:

• 2026-06-20: Listed on 8 threat lists (max severity: high)
• 2026-06-15: Operator score 0.2174 (Minimal operator risk)
• 2026-06-09: Subnet abuse density recorded at 51.95%

Historical trend indicates persistent subnet-level abuse activity despite individual IP's moderate classification.

## RELATIONSHIP MAPPING

32 relationships identified, primarily network-level associations with OVH-CUST-281059692 subnet. No certificate-based or hostname-based relationships detected beyond the PTR record.

## RECOMMENDED ACTIONS

Based on the IP's moderate risk profile and high-abuse neighborhood, implement the following defensive measures:

1. Firewall Policy: Block or rate-limit inbound connections; outbound allowed with logging

2. Monitoring: Enable logging for all traffic to/from this IP for 30-day analysis

3. DNS Filtering: Block if detected as source of DNS queries

4. Reputation Checks: Monitor blacklist status; current listings suggest takedown or abuse mitigation may be warranted

5. Network Segmentation: Consider restricting connectivity from this subnet during business hours if not business-critical

## RISK ASSESSMENT

Threat Level: MODERATE

• Individual IP shows no direct malicious indicators
• Subnet environment exhibits elevated abuse activity
• Ahrefs association provides legitimate business use case
• DNSBL listings indicate past or ongoing abuse

Recommended Priority: Medium (monitor and restrict if not required for business operations)

---

*Report generated from IPDebrief intelligence platform data. All findings based on observed signals and third-party threat intelligence feeds.*

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