45.64.74.51
IP Intelligence Briefing: 45.64.74.51
Date: June 16, 2026
1. Core Profile
- Risk Score: 50 (Moderate Risk)
- Ownership: Managed by IRT-DHRC-TW (Hong Kong) under ASN 55933.
- Geolocation: Hong Kong (HK), latitude 23.01, longitude 117.31.
- Network Role: Multi-service host (HTTP/SSH services, Apache 2.4.58, OpenSSH 9.6).
- Threat Indicators: No known malicious activity, spam, or attacker associations.
2. Observation History
- Recent Activity (June 16, 2026):
- HTTP service detected (Apache 2.4.58) with no suspicious banners.
- SSH service active (OpenSSH 9.6) with no known vulnerabilities.
- Historical Data:
- One observation from June 3, 2026, with moderate confidence.
- No persistent malicious behavior detected.
3. Network Relationships
- Subnet: 45.64.74.0/24 (owned by IRT-DHRC-TW).
- Neighbors:
- 45.64.74.56: Low risk (score 25).
- 45.64.74.200: High risk (score 80).
- Subnet Abuse Density: 0.5 (moderate risk).
4. Control Plane & Security
- BGP: Prefix 45.64.74.0/23, ASN 55933.
- DNSSEC: Validated.
- Routing: Route stability flagged as unstable.
- DNSBL: Listed in 2 of 8 DNSBLs (low confidence).
5. Recommendations
- Monitor Neighbor 45.64.74.200: High-risk IP in same subnet may indicate network compromise.
- Verify SSH/HTTP Configurations: Ensure no misconfigurations or unauthorized access.
- Check Subnet Activity: Investigate potential lateral movement risks due to moderate abuse density.
- Update Firewalls: Block traffic to high-risk neighbors (e.g., 45.64.74.200) using IPDebrief-recommended rules.
6. Next Steps
- Cross-reference with known campaigns or threat feeds for missed indicators.
- Validate DNSSEC and TLS configurations for the HTTP service.
- Monitor for changes in subnet abuse density or neighbor risk scores.
Conclusion:
The IP is associated with a Hong Kong-based organization and shows no direct malicious activity. However, the presence of a high-risk neighbor (45.64.74.200) warrants further investigation. Ensure network segmentation and continuous monitoring of the subnet.
Source: IPDebrief Intelligence Platform
This summary was generated by AI and may contain inaccuracies. Verify critical details independently.
🏢 Ownership & Registration
| Organization | IRT-DHRC-TW |
| ASN | AS55933 |
| Network Name | MAINT-DHRC-HK |
| CIDR Block | 45.64.74.0/24 |
| RIR | ARIN |
| Country | HK |
| Abuse Contact | Available via RDAP |
🌐 DNS Intelligence
| PTR Record | No PTR |
| Forward Confirmed | No — PTR hostname does not resolve back to this IP (weak signal) |
🔐 DNS Hygiene
| Hygiene Score | 40% (Fair) |
| SPF | Not configured |
| DMARC | Not configured |
| FCrDNS | Not verified |
| DNSSEC | Valid |
| CAA | Present |
☁️ Network Classification
| Infrastructure | Unknown |
| Service Purpose | Multi-Service Host |
| Network Tier | Unknown — Insufficient routing data to classify |
🔌 Services & Open Ports
| Port | Service | Protocol | Banner |
|---|---|---|---|
| 80 | http | tcp | — |
| 22 | ssh | tcp | |
| Closed Ports | 25, 443, 3389, 8080, 8443 (2 open / 7 scanned) | ||
| Server | Apache/2.4.58 (Ubuntu) |
| HTTP Title | — |
| SSH Version | SSH-2.0-OpenSSH_9.6p1 Ubuntu-3ubuntu13.16 |
🔐 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 | 32% | 2 | 4 |
| routing | 13% | 1 | 1 |
| services | 25% | 2 | 4 |
| ownership | 27% | 2 | 3 |
| reputation | 23% | 1 | 3 |
| geolocation | 35% | 2 | 3 |
| Overall | 26% | 10 | 18 |
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (50%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-05-07 23:04:21 UTC |
| Last Seen | 2026-06-23 13:50:14 UTC |
| Profile Built | 2026-06-23 13:56:29 UTC |
| Data Freshness | Live |
| Signal Types | 23 |
| Total Observations | 25 |
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