Threat Intelligence Briefing: IP 51.161.65.155/32
Overview:
The IP address 51.161.65.155/32 was observed in network traffic analysis conducted on [specific date range]. The address is registered under the domain [Domain Name], affiliated with [Organization Name], which operates from [Location]. The entity is categorized as [Type of Organization, e.g., IT services, web hosting].
Activity and Observations:
1. Network Traffic Patterns:
- The IP address was consistently involved in [type of traffic, e.g., web server traffic], primarily targeting [types of clients or services, e.g., e-commerce platforms].
- Peak activity was observed during [specific time windows], coinciding with [e.g., business hours in a specific time zone].
2. Historical Observations:
- The IP address has a history of [e.g., stable operation, few outages] over the past [time frame].
- There were instances of [e.g., increased traffic, potential DDoS activity] on [dates], which were identified as [e.g., maintenance, attack attempts].
3. Malicious Activity Reports:
- The IP was flagged in threat intelligence feeds for [specific incidents, e.g., phishing attempts, malware distribution], particularly associated with [details of incidents].
- The address appeared in [specific threat reports or security bulletins] related to [types of threats, e.g., ransomware, credential phishing].
4. Geolocation and ASN:
- The IP resides within the geographic region of [Location], under the Autonomous System Number (ASN) [ASN Number].
- The ASN is managed by [ISP or organization], known for [e.g., hosting various enterprises, historical security incidents].
5. Neighborhood Analysis:
- Adjacent IP addresses were found to host similar services, indicating a shared hosting environment or data center.
- No direct associations with known malicious networks were observed, but [number of neighboring IPs] have been linked to suspicious activities in past analyses.
Relationships:
- The IP address is part of a network infrastructure managed by [Organization Name], which has partnerships with [related entities or sectors].
- There is an observed pattern of communication with [specific external IPs or domains], suggesting [e.g., legitimate business operations, potential data exfiltration].
Risk Assessment:
- Risk Level: [Low/Moderate/High] โ Based on the frequency and nature of observed malicious activities.
- Potential Threats: Include [list of potential threats, e.g., phishing, malware distribution].
- Recommended Actions:
- Implement monitoring for unusual traffic patterns originating from or directed to this IP.
- Block or restrict access from this IP address if associated with malicious activities.
- Collaborate with threat intelligence communities to share insights and updates regarding this IP.
Conclusion:
The IP address 51.161.65.155/32 is primarily used for [main purpose, e.g., hosting a legitimate service] but has been implicated in several security incidents. Continuous monitoring and analysis are recommended to mitigate potential threats. Further investigation into specific incidents and communications may provide additional insights into its threat landscape.
Note: This briefing is based on the most recent data available and should be used in conjunction with other threat intelligence sources for comprehensive security assessment.
This summary was generated by AI and may contain inaccuracies. Verify critical details independently.
๐ข Ownership & Registration
| Organization | Dmytro, Ahrefs Pte Ltd |
| ASN | AS16276 |
| Network Name | OVH-CUST-281059690 |
| CIDR Block | 51.161.65.0/24 |
| RIR | ARIN |
| Country | Singapore |
| Abuse Contact | โ |
๐ DNS Intelligence
| PTR | proxy-ca011-san155.ahrefs.net |
| Forward Confirmed | No โ PTR hostname does not resolve back to this IP (weak signal) |
| Forward Hostnames | proxy-ca011-san155.ahrefs.net |
๐ DNS Hygiene
| Hygiene Score | 40% (Fair) |
| SPF | Not configured |
| DMARC | Not configured |
| FCrDNS | Not verified |
| DNSSEC | Valid |
| CAA | Present |
โ๏ธ Network Classification
| Infrastructure | Infrastructure / Datacenter |
| Service Purpose | Firewalled / No Services |
| Network Tier | Hosting โ Infrastructure provider without advanced routing |
๐ 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 | 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 | 31% | 2 | 4 |
| routing | 13% | 1 | 1 |
| services | 15% | 2 | 2 |
| ownership | 19% | 2 | 2 |
| reputation | 31% | 1 | 3 |
| geolocation | 39% | 2 | 3 |
| Overall | 25% | 10 | 15 |
| Data Coherence | Mostly Consistent (80%) โ 1 contradiction(s) |
| Attribution | Low (35%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
๐ Observation Timeline ๐ Live
| First Seen | 2026-05-07 23:04:25 UTC |
| Last Seen | 2026-06-27 06:23:35 UTC |
| Profile Built | 2026-06-28 00:27:32 UTC |
| Data Freshness | Live |
| Signal Types | 21 |
| Total Observations | 28 |
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