18.97.36.74
Intelligence Briefing: IP Address 18.97.36.74/32
Classification: High Risk
Risk Score: 70
Recommendation: Block
Infrastructure Details:
The address was registered to Amazon Technologies Inc. (AS14618) within the 18.32.0.0/11 block and was geolocated to Ashburn, Virginia, US. The service purpose was identified as Web Server, operating on port 443 using the Nginx server banner. A TLS certificate was observed issued to Intercom websocket endpoints (nexus-websocket-a.intercom.io).
Threat Intelligence:
The address was classified as Campaign Infrastructure and correlated with 37 other IP addresses sharing matching certificates. The IP was listed on 8 DNS blacklists. Despite being hosted on a major cloud provider, the address exhibited behavior consistent with attack infrastructure.
Actionable Measures:
Traffic from this address was recommended for immediate blocking. Configuration rules were generated for iptables, nginx, and pf to drop packets from the source. The IP address was observed actively between September 2026, with the latest signal recorded on September 23, 2026.
This summary was generated by AI and may contain inaccuracies. Verify critical details independently.
🏢 Ownership & Registration
| Organization | Amazon Technologies Inc. |
| ASN | AS14618 |
| Network Name | AT-88-Z |
| CIDR Block | 18.32.0.0/11 |
| RIR | ARIN |
| Country | United States |
| Abuse Contact | Available via RDAP |
🌐 DNS Intelligence
| PTR | ec2-18-97-36-74.compute-1.amazonaws.com |
| Forward Confirmed | Yes — FCrDNS verified |
| Forward Hostnames | ec2-18-97-36-74.compute-1.amazonaws.com |
🔐 DNS Hygiene
| Hygiene Score | 60% (Good) |
| SPF | 3/3 domains |
| DMARC | 3/3 domains |
| FCrDNS | Verified |
| DNSSEC | Not signed |
| CAA | Not configured |
| Domains Checked | 3 domains |
☁️ Network Classification
| Infrastructure | Unknown |
| Service Purpose | Web Server |
| Network Tier | Hosting — Infrastructure provider without advanced routing |
🔌 Services & Open Ports
| Port | Service | Protocol | Banner |
|---|---|---|---|
| 443 | https | tcp | — |
| Closed Ports | 22, 25, 80, 3389, 8080, 8443 (1 open / 7 scanned) | ||
| Server | nginx |
| HTTP Title | — |
🔐 TLS Certificate
| SANs | nexus-websocket-a.intercom.ionexus-websocket-pst.intercom.ionexus-websocket-overflow.intercom.ionexus-websocket-inbox.intercom.io |
| Valid From | 2026-08-09T00:00:00+00:00 |
| Valid Until | 2027-02-22T23:59:59+00:00 |
| TLS Protocol | Tls13 |
| Cipher Suite | TLS_AES_256_GCM_SHA384 |
| Signature Algorithm | sha256RSA |
| Validity Period | 197 days |
| Serial Number | 049CE817637CC8945B65063C530B254E |
| Thumbprint | 96B4E9457BE66F873B2286AFED177202BF751000 |
🎯 Confidence Breakdown
Per-dimension confidence scores based on source diversity and data freshness
| Dimension | Score | Sources | Observations |
|---|---|---|---|
| threat | 19% | 1 | 2 |
| routing | 13% | 1 | 1 |
| services | 27% | 2 | 3 |
| ownership | 27% | 2 | 3 |
| reputation | 13% | 1 | 1 |
| geolocation | 19% | 2 | 2 |
| Overall | 20% | 9 | 12 |
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (70%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-09-14 04:06:04 UTC |
| Last Seen | 2026-09-23 19:40:43 UTC |
| Profile Built | 2026-09-23 19:53:08 UTC |
| Data Freshness | Live |
| Signal Types | 23 |
| Total Observations | 31 |
Full dossier details are available via our API.