27.79.41.187
IP Intelligence Briefing: 27.79.41.187
Date: 2026-06-03
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**1. Core Profile**
- Risk Score: 40 (Moderate Risk)
- Ownership: Owned by IRT-VNNIC-AP (Vietnam) under APNIC.
- Geolocation: Da Nang, Vietnam (latitude 16.0685, longitude 108.2215).
- Network Role: Firewalled / No Services (no open ports, no TLS certs, no HTTP banners).
- Threat Indicators: No malicious activity detected (no blacklists, campaigns, or abuse confidence scores).
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**2. Observation History**
- Latest Activity: Scanned on 2026-06-03 (ports scanned, no services identified).
- Traceroute:
- Transit networks: Comcast, Cogent.
- RTT (Round-Trip Time): 248–263 ms, geolocation plausible.
- Subnet Analysis:
- 27.79.41.187/24 subnet has 0.3158 abuse density (mixed risk).
- 6 high-risk neighbors (risk scores 40–80) and 14 low-risk.
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**3. Relationships & Dependencies**
- Network Associations:
- Linked to VIETTEL-VN network (same ASN: 7552).
- DNS associations with localhost (no public domain activity).
- Control Plane:
- BGP prefix: 27.79.40.0/21.
- DNSSEC valid, no CAA records.
- 2 DNSBL listings (out of 8 total lists).
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**4. Neighborhood Analysis**
- Subnet: 27.79.41.187/24.
- Risk Distribution:
- High Risk: 1 IP (27.79.41.196, score 80).
- Medium Risk: 12 IPs (scores 25–65).
- Low Risk: 9 IPs (scores 0–25).
- Abuse Density: 4.5% of subnet IPs show abuse indicators.
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**5. Actionable Insights**
- Monitor Subnet: The 27.79.41.196 neighbor has the highest risk score (80). Investigate potential lateral movement or shared infrastructure.
- DNS Security: Ensure DNS configurations are secure, as the IP is associated with localhost (no public domain activity).
- BGP/Network Resilience: Verify BGP route stability for 27.79.40.0/21. The subnet has mixed risk, so monitor for unexpected traffic patterns.
- Threat Intelligence: No direct malicious indicators, but the subnet’s abuse density suggests increased scrutiny for suspicious activity.
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Recommendation: Prioritize monitoring high-risk neighbors and subnet traffic. Validate DNSSEC and BGP configurations to mitigate potential vulnerabilities.
This summary was generated by AI and may contain inaccuracies. Verify critical details independently.
🏢 Ownership & Registration
| Organization | IRT-VNNIC-AP |
| ASN | AS7552 |
| Network Name | — |
| CIDR Block | 27.79.40.0/21 |
| RIR | APNIC |
| Country | — |
| Abuse Contact | Available via RDAP |
🌐 DNS Intelligence
| PTR | localhost |
| Forward Confirmed | No — PTR hostname does not resolve back to this IP (weak signal) |
| Forward Hostnames | localhost |
🔐 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 | 4 |
| routing | 13% | 1 | 1 |
| services | 15% | 2 | 2 |
| ownership | 20% | 2 | 3 |
| reputation | 23% | 1 | 3 |
| geolocation | 30% | 2 | 3 |
| Overall | 21% | 10 | 16 |
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (50%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-05-07 23:04:15 UTC |
| Last Seen | 2026-06-23 09:39:50 UTC |
| Profile Built | 2026-06-23 09:44:40 UTC |
| Data Freshness | Live |
| Signal Types | 25 |
| Total Observations | 27 |
Full dossier details are available via our API.