1.53.51.188📋 Copy

# INTELLIGENCE BRIEFING: IP 1.53.51.188/32

Classification: Moderate Risk (Risk Score: 40)

Date: 2026-07-27

Analyst: IPDebrief Intelligence Team

---

## EXECUTIVE SUMMARY

IP address 1.53.51.188 is associated with provider IRT-VNNIC-AP (ASN 18403) within the FPTDYNAMICIP-NET block (1.53.48.0/20). The IP is geolocated to Ho Chi Minh City, Vietnam, and shows minimal threat indicators with no open services or active threat campaigns. Current risk assessment indicates moderate concern due to DNSBL listings and route stability issues.

---

## OWNERSHIP & GEOLOCATION

---

## THREAT ASSESSMENT

Risk Indicators:

• Overall Risk Score: 40 (Moderate)
• DNSBL Listings: 2 of 8 total lists
• Operator Score: 0.1304 (Minimal)
• Blacklist Count: 0

Threat Classification:

• Not a Tor exit node
• Not identified as known attacker
• Not a spam source
• No active threat campaigns detected
• No known malicious correlations

Network Services:

• Open Ports: None detected
• Service Purpose: Firewalled / No Services
• TLS Certificates: None
• HTTP Services: None

---

## OBSERVATION HISTORY

Temporal Analysis (Last 10 Observations):

• Geoconsensus: Vietnam (Confidence: 0.52)
• Ownership: IRT-VNNIC-AP (Confidence: 0.90-0.95)
• Operator Label: Minimal (Confidence: 0.30)
• Route Stability: False (Route changes observed)
• DNSSEC: Valid

Key Observations:

• Recent signals (2026-07-27) confirm consistent Vietnam geolocation
• Abuse contact: hm-changed@vnnic.vn
• No observed threat persistence or escalating risk patterns

---

## NEIGHBORHOOD ANALYSIS

Subnet: 1.53.51.0/24

• Active Siblings: 0
• Threat Siblings: 0
• Abuse Density: 0
• Classification: No inherited risk from neighbors

---

## RELATIONSHIP GRAPH

Associated Entities:

• Same Network: FPTDYNAMICIP-NET (repeated in relationship graph)

---

## RECOMMENDED ACTIONS

Firewall Rules:

```bash

iptables -A INPUT -s 1.53.51.188 -j DROP

nft add rule inet filter input ip saddr 1.53.51.188 drop

```

WAF Rules:

```nginx

deny 1.53.51.188;

```

Cloudflare WAF:

```json

{

"description": "Block 1.53.51.188 — IPDebrief risk score 40",

"action": "block",

"filter": {"expression": "ip.src eq 1.53.51.188"}

}

```

AWS WAF:

```json

{

"Addresses": ["1.53.51.188/32"],

"Description": "IPDebrief risk 40"

}

```

---

## ANALYST NOTES

Positive Indicators:

• No open services or ports detected
• No active threat campaigns
• No known malicious IP correlations
• Minimal operator score (0.1304)

Concerns:

• DNSBL listings on 2 of 8 threat lists
• Route stability flagged as false
• Moderate risk score (40) warrants monitoring

Recommendation:

Monitor for escalation. Current data suggests residential/dynamic IP usage in Vietnam with minimal threat activity. Implement monitoring rules but avoid immediate blocking without additional contextual signals.

This summary was generated by AI and may contain inaccuracies. Verify critical details independently.