54.39.210.70📋 Copy

# IPDEBRIEF INTELLIGENCE BRIEFING

Target IP: 54.39.210.70/32

Date: 2026-06-15

Classification: Moderate Risk - Cloud Infrastructure Hosted

---

## Executive Summary

IP 54.39.210.70 is a cloud computing endpoint operated by OVH (ASN 16276) under the network block OVH-CUST-281059686, associated with Ahrefs Pte Ltd. The IP resolves to proxy-ca007-san70.ahrefs.net and is hosted in Beauharnois, QC, Canada. Despite a moderate individual risk score of 50, the IP resides in a high-abuse subnet (density: 0.668) with 171 of 256 siblings flagged as threat sources. No active threat indicators, known campaigns, or direct abuse signals were observed.

---

## Risk Profile

• Risk Score: 50 (Moderate Risk)
• Provider: OVH (Cloud Compute/Hosting)
• Infrastructure Type: Cloud Compute
• Geolocation: Canada, QC, Beauharnois (3000km accuracy radius)
• Stability: No ownership changes recorded
• Geolocation Validity: Flagged implausible (RTT 29ms vs. minimum possible 112.6ms for 5629km distance)

---

## Threat Intelligence

• Known Attacker: No
• Spam Source: No
• Tor Exit Node: No
• Blacklist Status: 0 blacklists, but listed on 2 of 8 DNSBLs
• Abuse Confidence: Not available
• Threat Feeds: Empty
• Campaign Correlation: None identified

---

## Network Context

The IP operates within subnet 54.39.210.0/24, which shows elevated abuse characteristics:

• Abuse Density: 0.668 (High Abuse Classification)
• Active Siblings: 171 of 256
• Threat Siblings: 171
• Inherited Risk Score: 26

Neighbor analysis indicates 100 neighbors with 100 medium-risk IPs and no high-risk neighbors in the immediate vicinity.

---

## Technical Observations

• DNS: Resolves to proxy-ca007-san70.ahrefs.net
• Open Ports: None detected (firewalled/no services)
• TLS: No certificates detected
• DNSSEC: Valid
• CAA Records: Present
• Email Reputation: Not available (no SPF/DMARC)

---

## Historical Signals

18 observations tracked. Recent activity includes:

• DNS resolution to ahrefs.net (confidence: 0.80)
• Subnet abuse density signals (confidence: 0.75)
• DNSBL listings detected (confidence: 0.85)
• Geolocation validation failures (confidence: 0.30)
• Operator score: 0.2174 (Minimal)

---

## Recommended Actions

Based on the risk profile and neighborhood context, the following firewall rules are recommended:

iptables:

```

iptables -A INPUT -s 54.39.210.70 -j DROP

```

nftables:

```

nft add rule inet filter input ip saddr 54.39.210.70 drop

```

nginx:

```

deny 54.39.210.70;

```

Cloudflare WAF:

```

ip.src eq 54.39.210.70 → BLOCK

```

AWS WAF:

```

Addresses: ["54.39.210.70/32"]

Description: IPDebrief risk 50

```

---

## Intelligence Assessment

The IP represents a moderate-risk cloud endpoint with no direct malicious activity observed. However, the high-abuse subnet environment and DNSBL listings warrant defensive blocking. The geolocation validation failure and lack of open ports suggest the IP may be dormant or used for non-service purposes. Monitor for changes in the subnet abuse density and any emergence of threat indicators.

Priority: Medium

Action Required: Block at perimeter firewall

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