187.7.133.16📋 Copy

# IPDEBRIEF INTELLIGENCE BRIEFING

Target IP: 187.7.133.16/32

Date: July 25, 2026

Classification: Moderate Risk

## Executive Summary

IP 187.7.133.16 presents a moderate risk profile (risk score: 40) with mixed threat indicators. The address is associated with V tal (ASN 8167) in Brazil (Paraná/Ponta Grossa), though geolocation validation flags significant discrepancies. No open services or active threat indicators detected. The subnet environment shows clean classification with no sibling abuse activity.

## Ownership and Network Classification

• ASN: 8167 (V tal)
• Organization: V tal
• CIDR Block: 187.7.128.0/18
• RIR: LACNIC
• Service Purpose: Firewalled / No Services
• Network Role: Infrastructure (firewalled)

## Geolocation Analysis

• Country: Brazil (BR)
• Region: Paraná
• City: Ponta Grossa
• Geo Consensus: True (1 source)
• Geo Validation Status: ⚠️ PLAUSIBLE FLAGGED

Critical Validation Failure: RTT measurement (160ms) is below the minimum physically possible RTT (204.5ms) for the claimed distance of 10,223km. This indicates the geolocation data may be inaccurate or the IP may not be physically located in the reported region.

## Threat Intelligence

• Risk Score: 40 (Moderate)
• Blacklist Count: 0
• DNSBL Listed: 2 of 8 lists
• Tor Exit Node: No
• Known Attacker: No
• Spam Source: No
• Known Campaigns: None identified
• Threat Persistence: Not persistently malicious
• Observation History: 17 signals recorded

## DNS and Network Services

• PTR Hostname: 187-7-133-16.user3p.v-tal.net.br
• Forward Resolution: Confirmed
• Hosted Domains: None
• Open Ports: None detected
• TLS Certificate: None
• Email Authentication: No SPF or DMARC records

## Neighborhood Assessment

• Subnet: 187.7.133.16/24
• Abuse Density: 0% (Clean)
• Threat Siblings: 0
• Active Siblings: 0
• Classification: Clean

## Relationship Graph

• DNS Associations: 187-7-133-16.user3p.v-tal.net.br
• Network Relations: 516142 (same network block)
• Total Relationships: 10 (primarily DNS and network-level)

## Recommended Actions

Despite the moderate risk score, no active threat indicators require immediate blocking. However, the following defensive measures are recommended:

```bash

# iptables

iptables -A INPUT -s 187.7.133.16 -j DROP

# nftables

nft add rule inet filter input ip saddr 187.7.133.16 drop

# AWS WAF

"Addresses":["187.7.133.16/32"], "Description":"IPDebrief risk 40"

# Cloudflare WAF

"action":"block", "filter":{"expression":"ip.src eq 187.7.133.16"}

```

## Intelligence Narrative

The IP address 187.7.133.16 is classified as moderate risk (40) with no current active threat indicators. The address belongs to V tal infrastructure in Brazil but exhibits geolocation validation anomalies suggesting the reported location may be incorrect. No open services are detected, and the subnet environment remains clean with no sibling abuse activity. The DNS resolves to a user-specific hostname without associated hosted domains.

Assessment: This IP presents a moderate risk classification but lacks concrete malicious indicators. The primary concern is the geolocation discrepancy, which may indicate spoofed or misconfigured infrastructure. No immediate blocking is required, but monitoring is recommended until the geolocation validation issue is resolved.

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