INTEL BRIEFING: IP 54.39.203.244
Classification: Moderate Risk / Cloud Infrastructure / Potential Compromise Vector
---
SUMMARY
IP 54.39.203.244 is a cloud infrastructure address hosted on OVH's 54.39.203.0/24 block, associated with organization Dmytro, Ahrefs Pte Ltd (ASN 16276). The address resolves to ahrefs.net with PTR hostname proxy-ca008-san244.ahrefs.net. While the individual IP shows moderate risk, the parent subnet exhibits elevated abuse density, warranting defensive monitoring.
---
RISK ASSESSMENT
- Overall Risk Score: 40/100 (Moderate Risk)
- Abuse Confidence: Low (no direct threat indicators on this IP)
- Threat Indicators: None (not Tor exit, not known attacker, not spam source, zero blacklists)
- Classification Flags: Cloud compute environment, hosting infrastructure, DNSBL listed (1/8 lists)
---
INTEL EVIDENCE
- Network Context: OVH cloud provider, infrastructure type: CloudCompute
- DNS Resolution: Single forward hostname proxy-ca008-san244.ahrefs.net; forward resolution not confirmed
- Service Status: No open ports detected; firewall appears operational
- Geolocation: Reported as Beauharnois, QC, CA but flagged as geographically implausible (observed RTT 27ms vs minimum 112.6ms required for claimed distance)
- Control Plane: Route stable; DNSSEC valid; CAA records present
---
NEIGHBORHOOD ANALYSIS
The 54.39.203.0/24 subnet shows concerning abuse patterns:
- Abuse Density: 0.7109 (high_abuse classification)
- Inherited Risk: 28/100
- Subnet Composition: 256 total IPs, 225 active, 182 classified as threat siblings
- Risk Distribution: 0 high-risk, 18 medium-risk, 82 low-risk sampled IPs
- Implication: Compromise or abuse may be present on multiple sibling addresses
---
OBSERVATION HISTORY
- Total Signals: 23 observations
- Recent Activity: DNS blacklistings observed (6+ lists, max severity: high)
- Temporal Stability: 0 ownership changes; threat persistence: 0 days
- Notable: Subnet abuse density consistently reported at 0.7109 across observations
---
RELATIONSHIP GRAPH
- Connected Entities: 34 relationships identified
- Primary Link: Multiple Same Network relationships to OVH-CUST-281059687
- Associated Domain: ahrefs.net (CAA records present; 1 issuer)
---
RECOMMENDED ACTIONS
1. Monitor Subnet: Block or scrutinize 54.39.203.0/24 traffic given 71% abuse density
2. Review DNSBL Listings: Investigate why this IP is listed on 1 of 8 DNSBLs
3. Validate Geolocation: Cross-reference with internal telemetry; geolocation data appears unreliable
4. Port Scanning: Despite no open ports detected, verify firewall rules are active
5. Threat Hunting: Check for lateral movement indicators to/from this IP within Ahrefs infrastructure
---
SOC NOTES
This IP belongs to a legitimate SEO/analytics provider (Ahrefs) operating from OVH cloud infrastructure. However, the high abuse density in the parent subnet suggests potential credential compromise or resource hijacking. While no direct attack indicators exist on this specific IP, defensive posture should account for adjacent compromised IPs in the /24 block. Prioritize subnet-level controls over individual IP blocking.
---
*Intel generated: [Current Date]*
*Data Source: IPDebrief Intelligence Platform*
This summary was generated by AI and may contain inaccuracies. Verify critical details independently.
๐ข Ownership & Registration
| Organization | Dmytro, Ahrefs Pte Ltd |
| ASN | AS16276 |
| Network Name | OVH-CUST-281059687 |
| CIDR Block | 54.39.203.0/24 |
| RIR | ARIN |
| Country | Singapore |
| Abuse Contact | โ |
๐ DNS Intelligence
| PTR | proxy-ca008-san244.ahrefs.net |
| Forward Confirmed | No โ PTR hostname does not resolve back to this IP (weak signal) |
| Forward Hostnames | proxy-ca008-san244.ahrefs.net |
๐ DNS Hygiene
| Hygiene Score | 40% (Fair) |
| SPF | Not configured |
| DMARC | Not configured |
| FCrDNS | Not verified |
| DNSSEC | Valid |
| CAA | Present |
โ๏ธ Network Classification
| Infrastructure | Infrastructure / Datacenter |
| Service Purpose | Firewalled / No Services |
| Network Tier | Hosting โ Infrastructure provider without advanced routing |
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 | โ |
| 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 | 36% | 2 | 4 |
| routing | 8% | 1 | 1 |
| services | 15% | 2 | 2 |
| ownership | 19% | 2 | 2 |
| reputation | 32% | 1 | 3 |
| geolocation | 33% | 2 | 3 |
| Overall | 24% | 10 | 15 |
| Data Coherence | Mostly Consistent (80%) โ 1 contradiction(s) |
| Attribution | Low (35%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
๐ Observation Timeline ๐ Live
| First Seen | 2026-05-25 18:48:26 UTC |
| Last Seen | 2026-06-29 02:13:01 UTC |
| Profile Built | 2026-06-29 08:15:29 UTC |
| Data Freshness | Live |
| Signal Types | 23 |
| Total Observations | 25 |
Full dossier details are available via our API.