40.99.163.242
IP 40.99.163.242 was identified as a Microsoft Corporation (ASN 8075) infrastructure node operating within the 40.74.0.0/15 CIDR block. Geolocation data indicated Redmond, WA, though this was marked as geographically implausible due to RTT physics contradictions. The system functioned as a CloudCompute Web Server exposing TCP 80 and 443. TLS certificates were issued by DigiCert for outlook.com and associated Microsoft service domains. The host maintained a Low Risk reputation score of 25 with no blacklist hits or known campaign associations. Neighborhood analysis classified the subnet as clean with zero abuse density. Despite standard email authentication records (SPF/DMARC), the system was labeled a Suspicious Host due to signal contradictions, specifically regarding geolocation verification versus network latency. SOC teams were advised to Monitor the asset for potential changes given the presence of contradictory signals.
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 | 40.74.0.0/15 |
| 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 | 10/14 domains |
| DMARC | 12/14 domains |
| FCrDNS | Not verified |
| DNSSEC | Not signed |
| CAA | Not configured |
| Domains Checked | 14 domains |
☁️ Network Classification
| Infrastructure | Infrastructure / Datacenter |
| Service Purpose | Web Server |
| Network Tier | Tier 3 — Basic operator with some routing infrastructure |
🔌 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-HTTPAPI/2.0 |
| HTTP Title | — |
🔐 TLS Certificate
| SANs | outlook.com*.hotmail.com*.internal.outlook.com*.live.com*.office.com*.office365.com*.outlook.com*.outlook.office365.comattachment.outlook.live.netattachment.outlook.office.net |
| Valid From | 2026-06-26T00:00:00+00:00 |
| Valid Until | 2027-01-10T23:59:59+00:00 |
| TLS Protocol | Tls13 |
| Cipher Suite | TLS_AES_256_GCM_SHA384 |
| Signature Algorithm | sha256RSA |
| Validity Period | 198 days |
| Serial Number | 0E371D2766FD365DADDCF4004297839E |
| Thumbprint | C7C19E04464D744D810EF31A24C54FC22A7909C5 |
🎯 Confidence Breakdown
Per-dimension confidence scores based on source diversity and data freshness
| Dimension | Score | Sources | Observations |
|---|---|---|---|
| threat | 27% | 2 | 4 |
| routing | 38% | 4 | 5 |
| services | 33% | 2 | 4 |
| ownership | 27% | 2 | 4 |
| reputation | 22% | 1 | 3 |
| geolocation | 33% | 2 | 5 |
| Overall | 30% | 13 | 25 |
| Data Coherence | Mostly Consistent (80%) — 1 contradiction(s) |
| Attribution | Moderate (65%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-08-29 22:11:37 UTC |
| Last Seen | 2026-09-22 17:33:47 UTC |
| Profile Built | 2026-09-22 17:41:02 UTC |
| Data Freshness | Live |
| Signal Types | 30 |
| Total Observations | 58 |
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