Intelligence Briefing: IP 172.104.28.175/32
Classification: Legitimate Infrastructure
Reputation: Low Risk (Risk Score: 0)
Ownership and Geolocation:
The address was registered to Linode (ASN 63949) under the organization LINODE within the ARIN registry. Geolocation data placed the endpoint in Hanover, New Jersey, United States. The network role was identified as CloudCompute hosting.
Technical Services:
Active services included HTTP (80), HTTPS (443), and SSH (22). Server banners indicated Apache web service. A Let's Encrypt TLS certificate was observed with the subject domain `ntp-time-server.com`. DNS records confirmed forward resolution to `172-104-28-175.ip.linodeusercontent.com`.
Threat Assessment:
No indicators of compromise, blacklisting, or known campaign associations were detected. Abuse confidence scores remained null, and the blacklist count was 0. Behavioral analysis recorded zero honeypot hits, enumeration strikes, or active attacker activity. The system was not flagged as a known attacker or spam source.
Recommendation:
Analysis recommended allowing traffic with info-level severity. Forward-confirmed reverse DNS and consistent coherence scores supported the classification. No specific firewall rules were required based on current threat data.
This summary was generated by AI and may contain inaccuracies. Verify critical details independently.
π’ Ownership & Registration
| Organization | Linode |
| ASN | AS63949 |
| Network Name | LINODE |
| CIDR Block | 172.104.0.0/16 |
| RIR | ARIN |
| Country | United States |
| Abuse Contact | Available via RDAP |
π DNS Intelligence
| PTR | 172-104-28-175.ip.linodeusercontent.com |
| Forward Confirmed | Yes β FCrDNS verified |
| Forward Hostnames | 172-104-28-175.ip.linodeusercontent.com |
π DNS Hygiene
| Hygiene Score | 20% (Poor) |
| SPF | 0/4 domains |
| DMARC | 0/4 domains |
| FCrDNS | Verified |
| DNSSEC | Not signed |
| CAA | Not configured |
| Domains Checked | 4 domains |
βοΈ Network Classification
| Infrastructure | Infrastructure / Datacenter |
| Service Purpose | Web Server |
| Network Tier | Hosting β Infrastructure provider without advanced routing |
π Services & Open Ports
| Port | Service | Protocol | Banner |
|---|---|---|---|
| 80 | http | tcp | β |
| 443 | https | tcp | β |
| 22 | ssh | tcp | |
| Closed Ports | 25, 3389, 8080, 8443 (3 open / 7 scanned) | ||
| Server | Apache |
| HTTP Title | β |
| SSH Version | SSH-2.0-OpenSSH_9.2p1 Debian-2+deb12u10 |
π TLS Certificate
| SANs | ntp-time-server.com |
| Valid From | 2026-07-30T18:35:06+00:00 |
| Valid Until | 2026-10-28T18:35:05+00:00 |
| TLS Protocol | Tls13 |
| Cipher Suite | TLS_AES_256_GCM_SHA384 |
| Signature Algorithm | sha384ECDSA |
| Validity Period | 89 days |
| Serial Number | 0698FDE3A439A03CDD080DAC15B1F550E95E |
| Thumbprint | A37215B5D819B1F9BE7327308B524FA200BEDFA3 |
π― Confidence Breakdown
Per-dimension confidence scores based on source diversity and data freshness
| Dimension | Score | Sources | Observations |
|---|---|---|---|
| threat | 33% | 2 | 4 |
| routing | 13% | 1 | 1 |
| services | 37% | 2 | 6 |
| ownership | 27% | 2 | 4 |
| reputation | 22% | 1 | 3 |
| geolocation | 27% | 2 | 4 |
| Overall | 26% | 10 | 22 |
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (70%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
π Observation Timeline π Live
| First Seen | 2026-09-06 19:13:26 UTC |
| Last Seen | 2026-09-26 03:11:32 UTC |
| Profile Built | 2026-09-26 03:30:34 UTC |
| Data Freshness | Live |
| Signal Types | 27 |
| Total Observations | 45 |
Full dossier details are available via our API.