52.104.129.25
Intelligence Briefing: 52.104.129.25/32
Identity and Infrastructure:
The IP address 52.104.129.25 belonged to Microsoft Corporation (AS8075) within the 52.96.0.0/12 CIDR block. Geolocation data placed the resource in Redmond, Washington, US. The infrastructure was classified as CloudCompute and Hosting, operating primarily as a Web Server.
Network Behavior:
Passive scanning revealed open ports 80 (HTTP) and 443 (HTTPS). Server fingerprinting identified Microsoft-IIS/10.0 running on ASP.NET. TLS certificates issued by Microsoft TLS G2 RSA OCSP 04 validated domains within the *.sharepoint.com namespace. Traffic analysis recorded a 403 Forbidden response status.
Threat Profile:
The address carried a Moderate Risk reputation with a risk score of 40. While no specific threat indicators, known campaigns, or attacker signatures were present, the control plane data noted one DNSBL listing. A data contradiction existed between the claimed geolocation and RTT physics measurements, recording a minimum possible RTT of 157.7ms against an observed average of 92ms. Overall confidence in the profile data was Very Low.
Recommendation:
Analysts were advised to rate-limit traffic from this address due to the Moderate Risk classification. Suggested firewall rules included iptables and nginx rate-limiting configurations with a maximum packet rate of 5 per minute.
Observation History:
Signals were recorded between 2026-09-02 and 2026-09-22, with the most recent observation occurring in September 2026.
This summary was generated by AI and may contain inaccuracies. Verify critical details independently.
🏢 Ownership & Registration
| Organization | Microsoft Corporation |
| ASN | AS8075 |
| Network Name | MSFT |
| CIDR Block | 52.96.0.0/12 |
| RIR | ARIN |
| Country | United States |
| 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 | 4/4 domains |
| DMARC | 4/4 domains |
| FCrDNS | Not verified |
| DNSSEC | Not signed |
| CAA | Not configured |
| Domains Checked | 4 domains |
☁️ Network Classification
| Infrastructure | Infrastructure / Datacenter |
| Service Purpose | Web Server |
| Network Tier | Hosting — Infrastructure provider without advanced routing |
🔌 Services & Open Ports
| Port | Service | Protocol | Banner |
|---|---|---|---|
| 80 | http | tcp | — |
| 443 | https | tcp | — |
| Closed Ports | 22, 25, 3389, 8080, 8443 (2 open / 7 scanned) | ||
| Server | Microsoft-IIS/10.0 |
| HTTP Title | — |
🔐 TLS Certificate
| SANs | *.sharepoint.com*.sharepoint.apac.microsoftonline.com*.sharepoint.emea.microsoftonline.com*.sharepoint.microsoftonline.com*.gr.global.aa-rt.sharepoint.com |
| Valid From | 2026-07-14T18:51:48+00:00 |
| Valid Until | 2027-01-28T18:51:48+00:00 |
| TLS Protocol | Tls13 |
| Cipher Suite | TLS_AES_256_GCM_SHA384 |
| Signature Algorithm | sha384RSA |
| Validity Period | 198 days |
| Serial Number | 4300833988FC06A4B9C958B20A000000833988 |
| Thumbprint | 45C2F40ADD597EFAC2E12374C055A92A534121E0 |
🎯 Confidence Breakdown
Per-dimension confidence scores based on source diversity and data freshness
| Dimension | Score | Sources | Observations |
|---|---|---|---|
| threat | 27% | 2 | 3 |
| routing | 13% | 1 | 1 |
| services | 27% | 2 | 4 |
| ownership | 27% | 2 | 3 |
| reputation | 13% | 1 | 2 |
| geolocation | 33% | 2 | 4 |
| Overall | 23% | 10 | 17 |
| Data Coherence | Mostly Consistent (80%) — 1 contradiction(s) |
| Attribution | Low (35%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-09-02 12:56:28 UTC |
| Last Seen | 2026-09-22 22:39:43 UTC |
| Profile Built | 2026-09-23 00:35:59 UTC |
| Data Freshness | Live |
| Signal Types | 23 |
| Total Observations | 37 |
Full dossier details are available via our API.