177.44.71.77
IP Intelligence Briefing: 177.44.71.77
Date: 2026-06-17
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**1. Core Profile**
- Risk Score: 55 (Moderate Risk)
- Ownership:
- ASN: 28202
- Organization: MASTER S/A
- Country: Brazil (BR)
- Region: Minas Gerais
- City: Divinópolis
- Network Role: Firewalled / No Services (no open ports, no TLS/http banners).
- Threat Indicators: Clean. No malware, phishing, or abuse indicators detected.
- DNS:
- PTR hostname: `177-44-71-77.ija-wr.mastercabo.com.br`
- No email authentication (SPF/DKIM) records.
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**2. Geolocation & Control Plane**
- Geolocation Validation:
- Distance: ~9,476 km (Brazil to observer location).
- RTT Anomaly: Observed RTT of 151ms vs. expected minimum 189.5ms for this distance.
- Geo-Plausibility: False (discrepancy suggests spoofed or inaccurate geolocation).
- BGP:
- Prefix: 177.44.0.0/17
- ASN: 28202 (MASTER S/A)
- RPKI State: Not reported.
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**3. Observation History**
- Recent Activity (Last 30 Days):
- Risk Trends: Stable (no significant changes in threat or network signals).
- Network Scans: Detected 6 port scans (June 2, 2026). No open services found.
- DNS Activity: DNSSEC validation passed, but no domain hosting or email auth records.
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**4. Network Relationships**
- Subnet: 177.44.71.77/24
- Neighbors (24-bit subnet):
- Risk Distribution: 17 high-risk, 69 medium-risk, 10 low-risk IPs.
- Notable Neighbors:
- 177.44.71.3 (Risk: 80), 177.44.71.7 (Risk: 80), 177.44.71.10 (Risk: 80).
- Shared Network: 160458 (MASTER S/A).
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**5. Threat & Risk Context**
- Subnet Abuse Density: 41.57% (mixed risk).
- DNSBL Listings: 3 out of 8 lists.
- No Known Campaigns: No correlation with known malicious campaigns or TLS certificates.
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**6. Recommended Actions**
1. Monitor Subnet: Given the mixed risk density, increase monitoring of 177.44.71.0/24 for unusual traffic patterns.
2. Verify Geolocation: Investigate the RTT discrepancy for potential spoofing or honeypot activity.
3. DNS Analysis: Validate the PTR hostname (`mastercabo.com.br`) for potential abuse or phishing activity.
4. Firewall Rules: Consider blocking high-risk neighbors (e.g., 177.44.71.3, 177.44.71.7) if traffic is observed.
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Source: IPDebrief Threat Intelligence Platform | Last Updated: 2026-06-17
This summary was generated by AI and may contain inaccuracies. Verify critical details independently.
🏢 Ownership & Registration
| Organization | MASTER S/A |
| ASN | AS28202 |
| Network Name | 160458 |
| CIDR Block | 177.44.0.0/17 |
| RIR | LACNIC |
| Country | BR |
| Abuse Contact | — |
🌐 DNS Intelligence
| PTR | 177-44-71-77.ija-wr.mastercabo.com.br |
| Forward Confirmed | No — PTR hostname does not resolve back to this IP (weak signal) |
| Forward Hostnames | 177-44-71-77.ija-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 | 26% | 2 | 3 |
| routing | 13% | 1 | 1 |
| services | 15% | 2 | 2 |
| ownership | 19% | 2 | 2 |
| reputation | 26% | 1 | 3 |
| geolocation | 30% | 2 | 3 |
| Overall | 21% | 10 | 14 |
| Data Coherence | Mostly Consistent (80%) — 1 contradiction(s) |
| Attribution | Low (35%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Fresh
| First Seen | 2026-05-07 23:03:56 UTC |
| Last Seen | 2026-06-26 08:23:22 UTC |
| Profile Built | 2026-06-26 00:06:42 UTC |
| Data Freshness | Fresh |
| Signal Types | 20 |
| Total Observations | 20 |
Full dossier details are available via our API.