# IP Intelligence Briefing: 158.158.53.129/32
Classification: Moderate Risk (Score: 50)
Date Generated: Current Session
Analyst: IPDebrief Intelligence Team
---
## Executive Summary
IP address 158.158.53.129 is a Microsoft Azure cloud compute resource located in Madrid, Spain (AS8075). The IP presents a moderate risk profile (score 50) with no active threat indicators but exhibits geographic inconsistencies and DNSBL listings. No open services are detected, indicating the endpoint is properly firewalled.
---
## Infrastructure Profile
- Provider: Microsoft Azure (AS8075)
- Infrastructure Type: CloudCompute / Hosting
- BGP Prefix: 158.158.0.0/16
- Location: Madrid, Spain (ES)
- Network Role: Firewall-enabled cloud resource; no services exposed
- DNSSEC: Valid
---
## Risk Assessment
| Metric | Value |
|---|---|
| Risk Score | 50 (Moderate) |
| Blacklist Count | 0 |
| DNSBL Listings | 2 of 8 total lists |
| Abuse Confidence | Not scored |
| Known Campaigns | None |
Key Risk Factors:
- Geographic inconsistency detected between geolocation signals (ES vs SG)
- Listed on 2 DNSBL feeds with minimal operator score (0.1304)
- Cloud infrastructure with hosting designation
---
## Observed Activity
Observation History: 11 signals recorded
- Recent activity includes traceroute reconnaissance (18 hops)
- Port scanning attempts observed
- Multiple geolocation probes with inconsistent country data
- No active attacker behavior or WAF violations detected
---
## Threat Indicators
Negative:
- No threat indicators present
- Not identified as known attacker or spam source
- Not a Tor exit node
- No active campaign correlations
Neutral/Positive:
- No open ports detected
- No active enumeration strikes
- No honeypot hits recorded
---
## Neighborhood Analysis
- Subnet: 158.158.53.0/24
- Abuse Density: 0.0 (no risk)
- Related IPs: None identified
- Threat Correlations: None
---
## Recommended Actions
Based on the risk profile, consider the following:
Firewall Rules (Block):
- `iptables -A INPUT -s 158.158.53.129 -j DROP`
- `nft add rule inet filter input ip saddr 158.158.53.129 drop`
- `nginx: deny 158.158.53.129;`
WAF/CDN Blocks:
- Cloudflare WAF: Block with expression `ip.src eq 158.158.53.129`
- AWS WAF: Add to rule set with addresses `158.158.53.129/32`
Note: These recommendations are probabilistic. Correlate with additional signals before enforcement.
---
## Intelligence Narrative
The IP 158.158.53.129 represents a Microsoft Azure cloud endpoint operating in Madrid with a moderate risk posture. While no active malicious activity or threat indicators are present, the IP demonstrates inconsistent geolocation reporting and maintains presence on DNSBL feeds. The infrastructure is properly secured with no open services, reducing immediate threat potential. Monitoring is recommended for any service activation or behavior change within this cloud resource.
Threat Level: Monitor (50/100)
Action Required: Low (block if additional correlation confirms malicious intent)
This summary was generated by AI and may contain inaccuracies. Verify critical details independently.
๐ข Ownership & Registration
| Organization | IRT-MICROSOFT-APNIC-SG |
| ASN | AS8075 |
| Network Name | MICROSOFT-APNIC-AP |
| CIDR Block | 158.158.0.0/16 |
| RIR | ARIN |
| Country | SG |
| Abuse Contact | Available via RDAP |
๐ DNS Intelligence
| PTR Record | No PTR |
| Forward Confirmed | No โ PTR hostname does not resolve back to this IP (weak signal) |
๐ DNS Hygiene
| Hygiene Score | 20% (Poor) |
| SPF | Not configured |
| DMARC | Not configured |
| FCrDNS | Not verified |
| DNSSEC | Valid |
| CAA | Not configured |
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 | 27% | 2 | 2 |
| routing | 13% | 1 | 1 |
| services | 19% | 2 | 2 |
| ownership | 35% | 2 | 3 |
| reputation | 17% | 1 | 1 |
| geolocation | 42% | 2 | 3 |
| Overall | 25% | 10 | 12 |
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (50%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
๐ Observation Timeline ๐ Live
| First Seen | 2026-07-23 20:05:09 UTC |
| Last Seen | 2026-08-12 17:55:20 UTC |
| Profile Built | 2026-08-12 18:08:01 UTC |
| Data Freshness | Live |
| Signal Types | 20 |
| Total Observations | 21 |
Full dossier details are available via our API.