15.235.98.50📋 Copy

# IP Intelligence Briefing: 15.235.98.50

## Executive Summary

IP address 15.235.98.50 is a moderate-risk infrastructure endpoint operating within OVH Cloud infrastructure in Singapore. The IP resolves to an Ahrefs-hosted proxy hostname and exhibits no active threat indicators. However, the /24 subnet (15.235.98.0/24) shows elevated abuse density, warranting defensive monitoring.

---

## IP Profile Analysis

Risk Assessment:

• Risk Score: 40/100 (Moderate Risk)
• Provider Classification: OVH (Cloud Compute)
• Ownership: ASN 16276, Dmytro, Ahrefs Pte Ltd
• CIDR Block: 15.235.98.0/24

Network Classification:

• Infrastructure Type: Cloud Compute
• Connection Type: Firewalled / No Services Detected
• Hosting Provider: OVH
• Not a: CDN, VPN, Proxy, Tor, or Mobile Network

Geolocation:

• Country: Singapore
• Region: Not specified
• Accuracy Radius: 3,000 km
• GeoConsensus: True (1 source)

DNS Resolution:

• PTR Hostname: proxy-ca019-san50.ahrefs.net
• Domain: ahrefs.net
• Forward Resolution: Confirmed (1 hostname)
• Email Authentication: No SPF or DMARC records present

---

## Threat Intelligence

Threat Indicators:

• Abuse Confidence Score: Not assessed
• Blacklist Count: 0
• Is Tor Exit Node: No
• Is Known Attacker: No
• Is Spam Source: No
• Active Threat Feeds: None

Campaign Correlation:

• Campaign Likelihood: None
• Cert Matches: 0
• Banner Matches: 0
• Correlated IPs: 0

---

## Historical Observation Analysis

Observation Timeline: 25 observations recorded

• Most Recent: 2026-06-20 09:29:08 UTC (DNS resolution activity)
• Previous Signals:

- 2026-06-15: Subnet abuse density classified as "high_abuse" (0.5508)

- 2026-06-15: No ownership changes detected

- 2026-06-15: No persistent malicious activity detected

Temporal Indicators:

• Threat Persistence: 0 days
• Ownership Changes: 0
• Persistently Malicious: False
• Threat Observation Count: 1

---

## Neighborhood Analysis (15.235.98.0/24)

Subnet Overview:

• Abuse Density: 0.5508 (High Abuse Classification)
• Total Siblings: 256 IPs
• Active Siblings: 222 IPs
• Threat Siblings: 141 IPs
• Inherited Risk: 22

Risk Distribution in Subnet:

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

Notable Neighbor IPs:

• 15.235.98.0: Risk Score 40, Authority Score 50
• 15.235.98.1: Risk Score 50, Authority Score 50
• 15.235.98.2: Risk Score 50, Authority Score 50
• 15.235.98.3: Risk Score 40, Authority Score 50
• 15.235.98.4: Risk Score 40, Authority Score 50

---

## Network Relationships

Detected Relationships: 40 total relationships

• All relationships classified as "Same Network" (OVH-CUST-281059698)
• No external organizational or certificate relationships detected
• No cross-network infrastructure links identified

---

## Recommended Security Actions

Immediate Actions:

Based on the moderate risk profile and neighborhood abuse density, the following firewall rules are recommended:

iptables:

```bash

iptables -A INPUT -s 15.235.98.50 -j DROP

```

nftables:

```bash

nft add rule inet filter input ip saddr 15.235.98.50 drop

```

nginx:

```nginx

deny 15.235.98.50;

```

pfSense:

```

15.235.98.50/32

```

Cloudflare WAF:

```json

{

"description": "Block 15.235.98.50 — IPDebrief risk score 40",

"action": "block",

"filter": {

"expression": "ip.src eq 15.235.98.50"

}

}

```

AWS WAF:

```json

{

"Addresses": ["15.235.98.50/32"],

"Description": "IPDebrief risk 40"

}

```

Operational Notes:

• No specific threat-based recommendations beyond standard blocking
• Subnet-level monitoring advised due to 141 threat-sibling IPs
• No active malware indicators or campaign associations detected

---

## Intelligence Assessment

Threat Level: Moderate

Confidence: High

Recommendation: Implement blocking rules at perimeter; monitor subnet-level activity for coordinated abuse patterns. The IP itself shows no active malicious indicators, but the high-abuse subnet classification suggests potential for opportunistic misuse by threat actors.

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