187.120.96.133
IP Intelligence Dossier
Your IP: 216.73.216.123
🤖 Witness AIThis summary was generated by AI and may contain inaccuracies. Verify critical details independently.
IP Intelligence Briefing: 187.120.96.133
Date: June 9, 2026
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**1. Profile Summary**
- Risk Score: 80 (High Risk)
- Ownership: Owned by MASTER S/A (ASN 28202, LACNIC registry).
- Geolocation: Brazil (Minas Gerais, Varginha), coordinates (-21.55, -45.43).
- Network Role: Unknown; no public services or cloud infrastructure detected.
- Threat Indicators: No direct malicious activity observed.
- Abuse Density: Subnet (187.120.96.0/24) has 29% abuse density, with 7 high-risk neighbors.
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**2. Observation History**
- Latest Risk Signal (June 9): Minimal risk (score 0.13), no active threats.
- Traceroute: 20 hops, average RTT of 177ms, plausible Brazil origin.
- DNS: PTR record resolves to `187-120-96-133.vga-wr.mastercabo.com.br`. No email auth (SPF/DKIM).
- Control Plane: DNSSEC valid, 4 DNSBL listings (moderate risk).
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**3. Network Relationships**
- Subnet: 187.120.96.0/24, shared with 23 sibling IPs.
- DNS Associations: Linked to 14 instances of `187-120-96-133.vga-wr.mastercabo.com.br`.
- Neighbors:
- High-Risk Neighbors (80 score): 187.120.96.67, 187.120.96.144, 187.120.96.149, 187.120.96.182.
- Moderate-Risk Neighbors (55–70): 187.120.96.131, 187.120.96.132, 187.120.96.137, etc.
- Subnet Classification: "Clean" but with 7 high-risk IPs.
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**4. Threat & Mitigation Recommendations**
- Monitor Subnet: High-risk neighbors suggest potential lateral movement or shared infrastructure risks.
- DNS Analysis: Investigate `mastercabo.com.br` for phishing or malicious domains.
- Firewall Rules: Consider blocking high-risk neighbors (e.g., 187.120.96.67, 187.120.96.144) if they are not trusted.
- DNSBL Check: Verify DNSBL listings for spam or abuse activity.
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Next Steps:
- Correlate with internal logs for traffic patterns.
- Validate DNS associations for malicious activity.
- Monitor subnet for new high-risk IPs.
Threat Level: Moderate to High (due to subnet abuse density and high-risk neighbors).
This summary was generated by AI and may contain inaccuracies. Verify critical details independently.
🏢 Ownership & Registration
| Organization | MASTER S/A |
| ASN | AS28202 |
| Network Name | 139887 |
| CIDR Block | 187.120.64.0/18 |
| RIR | LACNIC |
| Country | BR |
| Abuse Contact | — |
🌐 DNS Intelligence
| PTR | 187-120-96-133.vga-wr.mastercabo.com.br |
| Forward Confirmed | No — PTR hostname does not resolve back to this IP (weak signal) |
| Forward Hostnames | 187-120-96-133.vga-wr.mastercabo.com.br |
🔐 DNS Hygiene
| Hygiene Score | 20% (Poor) |
| SPF | Not configured |
| DMARC | Not configured |
| FCrDNS | Not verified |
| DNSSEC | Valid |
| CAA | Not configured |
☁️ Network Classification
| Infrastructure | Unknown |
| Service Purpose | Firewalled / No Services |
| Network Tier | Unknown — Insufficient routing data to classify |
🔌 Services & Open Ports
| Port | Service | Protocol | Banner |
|---|---|---|---|
| No open ports detected | |||
| Closed Ports | 22, 25, 80, 443, 3389, 8080, 8443 (0 open / 7 scanned) | ||
| Server | — |
| HTTP Title | — |
🔐 TLS Certificate
No certificate
Issued by —
N/A
| SANs | None |
| Valid From | — |
| Valid Until | — |
🎯 Confidence Breakdown
Per-dimension confidence scores based on source diversity and data freshness
| Dimension | Score | Sources | Observations |
|---|---|---|---|
| threat | 19% | 2 | 2 |
| routing | 13% | 1 | 1 |
| services | 13% | 1 | 1 |
| ownership | 21% | 2 | 2 |
| reputation | 13% | 1 | 1 |
| geolocation | 23% | 2 | 2 |
| Overall | 17% | 9 | 9 |
Coverage: 6/6 dimensions · Data sufficiency: sufficient
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (50%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-05-22 09:12:11 UTC |
| Last Seen | 2026-06-25 20:09:17 UTC |
| Profile Built | 2026-06-09 20:14:30 UTC |
| Data Freshness | Live |
| Signal Types | 19 |
| Total Observations | 19 |
🔍 19 signal types · 19 observations collected
This report is generated from 19+ independent intelligence signals including
ownership records, DNS analysis, BGP routing, TLS certificates, port scanning, threat feeds,
behavioral fingerprinting, and more.
Full dossier details are available via our API.
Full dossier details are available via our API.
ℹ️ About This Report
All data shown is publicly available network metadata — IP addresses do not reliably identify individuals.
Assessments are probabilistic and should not be used as sole basis for access control decisions.
To report an issue or request data review, contact admin@ipdebrief.com.