175.100.42.36
Threat Intelligence Briefing for IP 175.100.42.36
Date: 2026-06-17
---
**1. Risk Profile**
- Overall Risk Score: 40 (Moderate Risk)
- Ownership: Registered to VIETTEL-CAMBODIA-KH (APNIC) under ASN 38623.
- Geolocation: Phnom Penh, Cambodia (KH).
- Network Role: Firewalled / No Services (no open ports, no TLS certificates, no HTTP services).
---
**2. Threat Indicators**
- Malicious Activity: No indicators of spam, attacker, or Tor exit node.
- DNS:
- PTR record: `dynamic-ip-adsl.metfone.com.kh`.
- No email authentication (SPF/DKIM/DMArC).
- Services: No open ports or TLS certificates detected.
---
**3. Network Relationships**
- Subnet: 175.100.42.0/24 (part of VIETTEL-CAMBODIA ASN 38623).
- Neighbors: No neighboring IPs found in the /24 subnet.
- Routing: BGP prefix `175.100.42.0/24` with minimal route stability (score 0.13).
---
**4. Observation History**
- Recent Activity (Last 30 Days):
- 21 observations, with 15 signals indicating "Minimal" operator risk.
- No persistent malicious activity or threat campaigns.
- DNSBL listings: 2 out of 8 total lists (low severity).
---
**5. Recommended Actions**
- Firewall Rules:
- iptables: `iptables -A INPUT -s 175.100.42.36 -j DROP`
- nftables: `nft add rule inet filter input ip saddr 175.100.42.36 drop`
- Cloudflare WAF: Block IP with rule `{ "action": "block", "expression": "ip.src eq 175.100.42.36" }`
- Monitoring: Track for unexpected service changes or increased traffic.
---
**6. Conclusion**
The IP 175.100.42.36 is associated with a Cambodian ISP (VIETTEL-CAMBODIA) and shows no active malicious indicators. While its risk score is moderate, the lack of open services and clean subnet history suggests it is likely a legitimate, private IP. Continue monitoring for anomalies, but no immediate action is required unless further threats emerge.
Product: IPDebrief | Copyright: © 2026 Jason Alberino. All rights reserved.
This summary was generated by AI and may contain inaccuracies. Verify critical details independently.
🏢 Ownership & Registration
| Organization | IRT-VIETTEL-CAMBODIA-KH |
| ASN | AS38623 |
| Network Name | VIETTEL-CAMBODIA |
| CIDR Block | 175.100.32.0/20 |
| RIR | APNIC |
| Country | KH |
| Abuse Contact | Available via RDAP |
🌐 DNS Intelligence
| PTR | dynamic-ip-adsl.metfone.com.kh |
| Forward Confirmed | No — PTR hostname does not resolve back to this IP (weak signal) |
| Forward Hostnames | dynamic-ip-adsl.metfone.com.kh |
🔐 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 | — |
| SSH Version | SSH-2.0-OpenSSH_8.2p1 Ubuntu-4ubuntu0.13 |
🔐 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 | 29% | 2 | 4 |
| routing | 17% | 1 | 1 |
| services | 15% | 2 | 2 |
| ownership | 27% | 2 | 3 |
| reputation | 24% | 1 | 3 |
| geolocation | 19% | 2 | 2 |
| Overall | 22% | 10 | 15 |
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (50%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-05-07 23:03:55 UTC |
| Last Seen | 2026-06-22 21:35:36 UTC |
| Profile Built | 2026-06-22 22:18:22 UTC |
| Data Freshness | Live |
| Signal Types | 21 |
| Total Observations | 24 |
Full dossier details are available via our API.