# INTELLIGENCE BRIEFING: 116.105.73.162/32
Classification: Moderate Risk
Date: 2026-07-29
Prepared For: SOC Operations
---
## EXECUTIVE SUMMARY
IP 116.105.73.162 is classified as MODERATE RISK (Risk Score: 40) with origin in Vietnam (Da Nang). The IP belongs to VIETTEL-VN (ASN 24086), a Vietnamese ISP. No active services are detected; the IP appears firewalled with no open ports. The IP is listed on 2 of 8 DNSBL entries. No malicious activity indicators observed in current observation window.
---
## NETWORK ATTRIBUTION
| Attribute | Value |
|---|---|
| **ASN** | 24086 (IRT-VNNIC-AP) |
| **Organization** | VIETTEL-VN |
| **Country** | Vietnam (VN) |
| **City** | Da Nang |
| **CIDR Block** | 116.96.0.0/12 |
| **RIR** | APNIC |
| **Control Plane** | BGP Prefix: 116.105.72.0/21 |
| **Route Stability** | Unstable (isRouteStable: false) |
---
## THREAT ASSESSMENT
| Indicator | Status |
|---|---|
| **Risk Score** | 40 / 100 (Moderate) |
| **Provider Score** | 0 |
| **Authority Score** | 0 |
| **Stability Score** | 0 |
| **Operator Score** | 0.1304 (Minimal) |
| **Blacklist Count** | 2 / 8 DNSBLs |
| **Known Attacker** | No |
| **Spam Source** | No |
| **Tor Exit Node** | No |
| **Honeypot Hits** | 0 |
| **Enumeration Strikes** | 0 |
| **WAF Violations** | 0 |
Network Classification: Residential / No Services Detected (Service Purpose: "Firewalled / No Services")
---
## OBSERVATION HISTORY
Total Observations: 13
Most Recent Activity: 2026-07-29 12:20 UTC
Key signals observed include:
- Geolocation inference (Vietnam, confidence: 0.52)
- Network classification (confidence: 0.30)
- Operator routing assessment (confidence: 0.30)
- Multi-dimensional risk assessment (confidence: 0.17)
Threat Persistence: 0 days (no persistent malicious activity)
Ownership Changes: 0
---
## NEIGHBORHOOD ANALYSIS
Subnet: 116.105.73.162/24
- Abuse Density: 0%
- Total Siblings: 0
- Active Siblings: 0
- Threat Siblings: 0
- Risk Distribution: None detected
The IP appears isolated within its /24 subnet with no adjacent abuse activity.
---
## RELATIONSHIP GRAPH
Direct Relationships: 3
- All classified as "Same Network" โ VIETTEL-VN
No certificates, hostnames, or organizational links detected beyond network attribution.
---
## SERVICE & DNS ANALYSIS
| Category | Status |
|---|---|
| **Open Ports** | None detected |
| **TLS Certificate** | None |
| **HTTP Title** | None |
| **PTR Hostnames** | None |
| **Forward Resolution** | Not confirmed |
| **Email SPF/DMARC** | None |
| **Hosted Domains** | 0 |
---
## RECOMMENDED ACTIONS
Firewall Blocking Recommended:
```bash
# iptables
iptables -A INPUT -s 116.105.73.162 -j DROP
# nftables
nft add rule inet filter input ip saddr 116.105.73.162 drop
# nginx
deny 116.105.73.162;
# pfSense
116.105.73.162/32
# Cloudflare WAF
Block 116.105.73.162 โ IPDebrief risk score 40
# AWS WAF
Addresses: 116.105.73.162/32 โ Description: IPDebrief risk 40
```
---
## ANALYST NOTES
1. Low-Activity Profile: No services detected, no open ports, no DNS forward resolution. Consistent with residential or low-traffic endpoint.
2. DNSBL Presence: Listed on 2 of 8 DNSBLs warrants monitoring but does not indicate confirmed malicious activity.
3. Route Instability: BGP route flagged as unstable (isRouteStable: false). May indicate dynamic peering or routing changes.
4. Neighborhood Clean: Zero threat siblings in /24 subnet. No cluster abuse indicators.
5. Recommendation: Monitor for pattern emergence. Current threat indicators insufficient for immediate block without additional context (e.g., connection attempts, payload analysis). Apply blocking rules with logging enabled for future correlation.
---
END OF BRIEFING
This summary was generated by AI and may contain inaccuracies. Verify critical details independently.
๐ข Ownership & Registration
| Organization | IRT-VNNIC-AP |
| ASN | AS24086 |
| Network Name | VIETTEL-VN |
| CIDR Block | 116.96.0.0/12 |
| RIR | APNIC |
| Country | VN |
| Abuse Contact | Available via RDAP |
๐ DNS Intelligence
| PTR Record | No PTR |
| Forward Confirmed | No โ PTR hostname does not resolve back to this IP (weak signal) |
๐ DNS Hygiene
| Hygiene Score | 20% (Poor) |
| SPF | Not configured |
| DMARC | Not configured |
| FCrDNS | Not verified |
| DNSSEC | Valid |
| CAA | Not configured |
โ๏ธ Network Classification
| Infrastructure | Unknown |
| Service Purpose | Single-Service Host |
| Network Tier | Unknown โ Insufficient routing data to classify |
๐ Services & Open Ports
| Port | Service | Protocol | Banner |
|---|---|---|---|
| 80 | http | tcp | โ |
| Closed Ports | 22, 25, 443, 3389, 8080, 8443 (1 open / 7 scanned) | ||
| Server | โ |
| HTTP Title | โ |
๐ TLS Certificate
| SANs | None |
| Valid From | โ |
| Valid Until | โ |
๐ฏ Confidence Breakdown
Per-dimension confidence scores based on source diversity and data freshness
| Dimension | Score | Sources | Observations |
|---|---|---|---|
| threat | 25% | 1 | 1 |
| routing | 25% | 1 | 1 |
| services | 25% | 1 | 1 |
| ownership | 25% | 1 | 2 |
| reputation | 0% | 0 | 0 |
| geolocation | 0% | 0 | 0 |
| Overall | 16% | 4 | 5 |
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (50%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
๐ Observation Timeline ๐ Live
| First Seen | 2026-07-22 07:15:08 UTC |
| Last Seen | 2026-08-12 00:06:38 UTC |
| Profile Built | 2026-08-03 11:22:09 UTC |
| Data Freshness | Live |
| Signal Types | 18 |
| Total Observations | 19 |
Full dossier details are available via our API.