191.53.112.206
IP Intelligence Briefing: 191.53.112.206
*Generated via IPDebrief tools: profile, history, relationships, and neighborhood analysis*
---
**1. IP Profile**
- Risk Assessment: Moderate Risk (Risk Score: 40/100). No direct threat indicators (no malware, phishing, or known attacker associations).
- Ownership:
- ASN: AS28202 (MASTER S/A, Brazil).
- Network: 191.53.0.0/16 registered to MASTER S/A via LACNIC.
- Geolocation:
- Country: Brazil (SP, Taubaté).
- Coordinates: Inferred at -14.24° latitude, -51.93° longitude (2500km accuracy).
- Network Role: Firewalled / No Services. No open ports, TLS certs, or HTTP banners detected.
- DNS:
- PTR Record: `191-53-112-206.bet-wr.mastercabo.com.br` (linked to `mastercabo.com.br`).
- Email Security: No SPF/DKIM records detected.
---
**2. Observation History**
- Recent Activity:
- June 17, 2026: ASN 28202 (MASTER S/A) confirmed with geolocation in Brazil.
- June 2, 2026: Same ASN and geolocation recorded.
- Threat Trends: No persistent malicious activity. Threat observation count: 1.
---
**3. Relationships**
- Network Associations:
- Linked to subnet 227148 (AS28202).
- DNS: Multiple PTR records tied to `mastercabo.com.br`.
- No Cross-Subnet Threats: No correlated IPs or campaigns detected.
---
**4. Neighborhood Analysis**
- Subnet: 191.53.112.0/24 (abuse density: 0.5).
- Neighbors:
- High-Risk Neighbor: 191.53.112.250 (Risk Score: 80).
- Other Neighbors: 191.53.112.203, 207, 208, 243 (Risk Scores: 40–55).
- Abuse Density: 20% of subnet IPs flagged as risky.
---
**5. Recommendations**
- Monitor High-Risk Neighbor: 191.53.112.250 shows elevated risk (Score: 80). Investigate potential lateral movement or compromised hosts.
- Subnet Scrutiny: Given 20% abuse density, review traffic patterns within 191.53.112.0/24 for anomalies.
- DNS Validation: Confirm legitimacy of `mastercabo.com.br` to rule out spoofing or phishing.
- Firewall Rules: Consider blocking 191.53.112.250 if it persists in traffic, using IPDebrief’s generated rules for iptables/nftables.
---
*End of Briefing*
*Data sourced from IPDebrief’s threat intelligence platform.*
This summary was generated by AI and may contain inaccuracies. Verify critical details independently.
🏢 Ownership & Registration
| Organization | MASTER S/A |
| ASN | AS28202 |
| Network Name | 227148 |
| CIDR Block | 191.53.0.0/16 |
| RIR | LACNIC |
| Country | BR |
| Abuse Contact | — |
🌐 DNS Intelligence
| PTR | 191-53-112-206.bet-wr.mastercabo.com.br |
| Forward Confirmed | No — PTR hostname does not resolve back to this IP (weak signal) |
| Forward Hostnames | 191-53-112-206.bet-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
| SANs | None |
| Valid From | — |
| Valid Until | — |
🎯 Confidence Breakdown
Per-dimension confidence scores based on source diversity and data freshness
| Dimension | Score | Sources | Observations |
|---|---|---|---|
| threat | 27% | 2 | 4 |
| routing | 17% | 1 | 1 |
| services | 15% | 2 | 2 |
| ownership | 19% | 2 | 2 |
| reputation | 24% | 1 | 3 |
| geolocation | 21% | 2 | 2 |
| Overall | 20% | 10 | 14 |
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (50%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-05-07 23:04:03 UTC |
| Last Seen | 2026-06-23 02:30:46 UTC |
| Profile Built | 2026-06-23 02:38:59 UTC |
| Data Freshness | Live |
| Signal Types | 19 |
| Total Observations | 21 |
Full dossier details are available via our API.