# IP Intelligence Briefing: 188.245.172.7
Classification: Moderate Risk | Risk Score: 40/100
Date: 2026-08-06
## Executive Summary
Target IP 188.245.172.7 is a Hetzner cloud infrastructure host located in Falkenstein, Germany. The IP presents moderate risk due to multiple DNS blacklist listings and an anomalous certificate subject name. While no active threat indicators were detected, the combination of open SSH port and suspicious domain association warrants monitoring.
## Infrastructure Profile
Ownership:
- ASN: 24940 (Hetzner Online GmbH)
- Network: CLOUD-FSN1 (188.245.160.0/20)
- Organization: Hetzner Online GmbH - Contact Role
- Registration: RIPE NCC
Geolocation:
- Country: Germany (DE)
- Region: Saxony
- City: Falkenstein
- Coordinates: 51.17°N, 10.45°E
- Timezone: Europe/Berlin
Network Classification:
- Infrastructure Type: Cloud Compute
- Hosting Provider: Yes
- Connection Type: Web Server
## Active Services & Ports
| Port | Protocol | Service | Status |
|---|---|---|---|
| 80 | TCP | HTTP | Open |
| 443 | TCP | HTTPS | Open |
| 22 | TCP | SSH | Open |
Server Fingerprint:
- Web Server: nginx
- TLS Certificate: CN=teyseer.al-nukhbahquranacademy.org.uk (Let's Encrypt)
- HTTP/2 Enabled: Yes
- HSTS Header: Present (max-age=63072000)
## Threat Indicators
| Indicator | Status | Details |
|---|---|---|
| **Blacklist Count** | 2/8 Lists | DNSBL Listed |
| **Tor Exit Node** | False | Not detected |
| **Known Attacker** | False | No reputation |
| **Spam Source** | False | Not flagged |
| **Campaign Correlation** | None | No matches |
| **Abuse Confidence** | N/A | Not scored |
## Certificate Analysis
- Issuer: Let's Encrypt
- Subject: CN=teyseer.al-nukhbahquranacademy.org.uk
- Validity: Certificate present
- Assessment: Certificate subject contains non-standard domain name ("al-nukhbahquranacademy") with unusual character encoding patterns.
## DNS Analysis
| Attribute | Value |
|---|---|
| **PTR Hostname** | static.7.172.245.188.clients.your-server.de |
| **Forward Resolution** | Confirmed |
| **Domain** | your-server.de |
| **SPF Record** | Present |
| **DMARC Record** | Present |
## Control Plane Assessment
- Route Stability: Unstable (isRouteStable: false)
- DNSSEC Validation: Valid
- Operator Score: 0.3478 (Basic)
- Route Changes (30d): 0
- IRR Consistency: N/A
## Observation History
Recent Signals (2026-08-06):
- Subnet Classification: Clean (abuse density: 0)
- Network Role: Cloud infrastructure host
- Threat Persistence: No observed malicious activity
- HTTP Response: 200 OK, 847ms TTFB
- Security Headers: HSTS enabled, permissions policy present
Temporal Analysis: No persistent malicious behavior detected. Ownership stable with zero changes observed.
## Neighborhood Assessment
Subnet: 188.245.172.0/24
- Total Siblings: 1
- Active Siblings: 1
- Threat Siblings: 0
- Abuse Density: 0 (Clean)
- Risk Distribution: No high/medium risk neighbors detected
## Relationship Graph
DNS Associations:
- static.7.172.245.188.clients.your-server.de
Network Associations:
- CLOUD-FSN1 (Hetzner network)
## Recommended Actions
Immediate
1. Monitor SSH Port (22): Open SSH port on cloud infrastructure requires assessment for unauthorized access attempts
2. Certificate Review: Investigate certificate subject domain "teyseer.al-nukhbahquranacademy.org.uk" for potential phishing or spoofing activity
Firewall Rules (Recommended)
- Allow standard web traffic (80/443)
- Restrict SSH access to authorized sources only
- Monitor for DNSBL-listed outbound connections
SOC Monitoring
- Track certificate renewals for continued anomalous domain patterns
- Monitor for changes in DNSBL listing status
- Watch for correlation with other IPs in Hetzner 188.245.0.0/16 space
## Risk Assessment
Overall Risk: Moderate (40/100)
The IP represents standard cloud infrastructure with elevated risk due to:
1. Multiple DNS blacklist listings (2/8)
2. Anomalous certificate subject name
3. Open SSH port on hosting infrastructure
No active malicious indicators detected. Recommend routine monitoring with no immediate blocking required.
---
Report Generated: 2026-08-06
Data Sources: IPDebrief Intelligence Platform
Classification: Defensive Security Intelligence
This summary was generated by AI and may contain inaccuracies. Verify critical details independently.
๐ข Ownership & Registration
| Organization | Hetzner Online GmbH - Contact Role |
| ASN | AS24940 |
| Network Name | CLOUD-FSN1 |
| CIDR Block | 188.245.160.0/20 |
| RIR | RIPE |
| Country | DE |
| Abuse Contact | Available via RDAP |
๐ DNS Intelligence
| PTR | static.7.172.245.188.clients.your-server.de |
| Forward Confirmed | Yes โ FCrDNS verified |
| Forward Hostnames | static.7.172.245.188.clients.your-server.de |
๐ DNS Hygiene
| Hygiene Score | 100% (Excellent) |
| SPF | 1/2 domains |
| DMARC | 1/2 domains |
| FCrDNS | Verified |
| DNSSEC | Valid |
| CAA | Present |
| Domains Checked | 2 domains |
โ๏ธ Network Classification
| Infrastructure | Infrastructure / Datacenter |
| Service Purpose | Firewalled / No Services |
| Network Tier | Tier 3 โ Basic operator with some routing infrastructure |
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 | nginx |
| 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 | 35% | 2 | 3 |
| routing | 17% | 1 | 1 |
| services | 35% | 2 | 3 |
| ownership | 35% | 2 | 3 |
| reputation | 17% | 1 | 2 |
| geolocation | 35% | 2 | 3 |
| Overall | 29% | 10 | 15 |
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (70%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
๐ Observation Timeline ๐ Live
| First Seen | 2026-08-03 23:38:44 UTC |
| Last Seen | 2026-08-13 06:44:20 UTC |
| Profile Built | 2026-08-13 05:52:39 UTC |
| Data Freshness | Live |
| Signal Types | 22 |
| Total Observations | 24 |
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