47.128.119.133📋 Copy

# IP Intelligence Briefing: 47.128.119.133/32

Classification: Cloud Infrastructure / Moderate Risk

Date: 2026-06-20

Source: IPDebrief Intelligence Platform

---

## Executive Summary

IP address 47.128.119.133 is an Amazon Web Services (AWS) EC2 instance located in Singapore (ap-southeast-1). The IP carries a moderate risk score of 40/100. No active threat indicators were detected. However, the /24 subnet (47.128.119.0/24) exhibits high abuse density (0.5895) with 56 threat-sibling IPs identified, warranting contextual monitoring.

---

## Infrastructure Profile

---

## Technical Details

DNS Resolution:

• PTR Hostname: `ec2-47-128-119-133.ap-southeast-1.compute.amazonaws.com`
• Forward Resolution: Confirmed (1 hostname)
• Domain: amazonaws.com

Services:

• Open Ports: None detected
• Service Status: Firewalled / No Services
• TLS Certificates: Not exposed

Control Plane:

• BGP Prefix: 47.128.0.0/14
• DNSSEC: Valid
• RPKI State: Pending
• Route Stability: False

---

## Threat Assessment

Current Threat Indicators:

• Blacklist Count: 0
• Is Tor Exit Node: False
• Is Known Attacker: False
• Is Spam Source: False
• Known Campaigns: None
• Abuse Confidence Score: Not available

Risk Breakdown:

• Provider Score: 0
• Authority Score: 0
• Stability Score: 0

---

## Neighborhood Analysis (47.128.119.0/24)

Key Observation: While the target IP shows no direct malicious indicators, the /24 subnet demonstrates elevated abuse density with 56 threat-sibling IPs. This contextual risk factor suggests the IP shares infrastructure with potentially malicious actors.

---

## Observation History

Signal Count: 21 observations

Latest Observation: 2026-06-20T03:55:04 UTC

Temporal Trends:

• Threat Persistence Days: 0
• Threat Observation Count: 1
• Persistent Malicious Activity: False
• Ownership Changes: 0

Recent Signals:

• Geolocation validation (Singapore): Confirmed
• Subnet abuse classification: High abuse density
• Threat list status: Not listed
• Attacker classification: False

---

## Relationship Graph

Total Relationships: 33

Primary Associations:

• DNS: `ec2-47-128-119-133.ap-southeast-1.compute.amazonaws.com`
• Network: AMAZON-SIN (47.128.0.0/14)
• Multiple DNS and network associations to AWS infrastructure

---

## Recommended Actions

Security Recommendations:

• Monitor subnet activity due to high abuse density
• Consider traffic analysis on /24 block for correlated anomalies
• No immediate blocking recommended for isolated IP activity

Firewall Rules (If Blocking Required):

```

iptables: iptables -A INPUT -s 47.128.119.133 -j DROP

nftables: nft add rule inet filter input ip saddr 47.128.119.133 drop

Cloudflare WAF: Block 47.128.119.133 — IPDebrief risk score 40

AWS WAF: Addresses: 47.128.119.133/32

```

---

## Intelligence Notes

1. Low Immediate Threat: The IP shows no direct evidence of malicious activity. All threat indicators are negative.

2. Contextual Risk: The /24 subnet classification as "high_abuse" with 56 threat siblings suggests infrastructure-level risk. Monitor for correlated activity.

3. Cloud Infrastructure: As an AWS EC2 instance with no open services, the IP is likely part of legitimate cloud operations. False positives possible due to shared IP space.

4. Geographic Consistency: All signals consistently indicate Singapore location with plausible geolocation validation.

5. Action Threshold: Consider blocking only if additional signals correlate with known threat campaigns or observed malicious behavior.

---

Briefing Prepared By: IPDebrief Intelligence Team

Classification: SOC-DEFENSIVE

Next Review: Monitor for subnet-level threat correlation

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