61.31.169.147📋 Copy

# IPDEBRIEF INTELLIGENCE BRIEFING

Target IP: 61.31.169.147/32

Classification: Moderate Risk (55/100)

Date: Current Intelligence Cycle

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## EXECUTIVE SUMMARY

IP 61.31.169.147 is a mobile-originated web server in Taipei, Taiwan associated with TFN-NET (ASN 9924). The IP maintains a moderate risk profile (55/100) with no direct threat indicators but is listed on 3 of 8 DNSBLs. The address operates a lighttpd web server over mobile (Taiwan Mobile) infrastructure with minimal threat activity observed.

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## OWNERSHIP & INFRASTRUCTURE

DNS Configuration:

• PTR Hostname: 61-31-169-147.static.tfn.net.tw
• Forward Resolution: Confirmed
• Hosted Domains: None
• Email Auth: SPF/DMARC not configured

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## NETWORK SERVICES

Server Banner: lighttpd/1.4.25-devel-v2.2.24-45-gc66fb0e4

SSH Banner: SSH-2.0-dropbear_2014.63 (legacy protocol support detected)

TLS Certificate: None observed

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## THREAT PROFILE

Risk Indicators:

• Risk Score: 55/100 (Moderate)
• DNSBL Listings: 3 of 8 commercial lists
• Known Attacker: No
• Spam Source: No
• Tor Exit Node: No
• Proxy/VPN: No
• Known Campaigns: None
• Pulsedive Risk: Not available

Control Plane:

• Origin ASN: 9924
• BGP Prefix: 61.31.160.0/19
• Route Stability: False
• DNSSEC: Valid
• IRR Consistency: Not available

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## OBSERVATION HISTORY

Total Signals: 21 observations

Recent Activity (2026-07-29):

• Geo validation confirmed (9,347.6 km from probe origin)
• Average RTT: 240.6 ms (min: 237 ms, max: 247 ms)
• Connection failures observed on HTTPS probe
• No persistent malicious activity detected
• No ownership changes recorded

Temporal Analysis:

• Threat Persistence Days: 0
• Threat Observation Count: 0
• Persistently Malicious: No

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## RELATIONSHIP MAPPING

Identified Relationships: 9 total

• DNS Associations: 6 instances pointing to 61-31-169-147.static.tfn.net.tw
• Network Associations: 3 instances linked to TFN-NET

Associated Hostnames:

• 61-31-169-147.static.tfn.net.tw (static IP hostname)

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## NEIGHBORHOOD ANALYSIS

Subnet: 61.31.169.147/24

Classification: Clean

Abuse Density: 0.0

Risk Distribution:

• High Risk: 0
• Medium Risk: 0
• Low Risk: 0
• Threat Siblings: 0

No neighboring IPs returned in the /24 block.

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## RECOMMENDED ACTIONS

Primary Recommendation: Increase logging verbosity and review recent activity from this IP (High Severity)

Firewall Rules:

```bash

# iptables

iptables -A INPUT -s 61.31.169.147 -j DROP

# nftables

nft add rule inet filter input ip saddr 61.31.169.147 drop

# nginx

deny 61.31.169.147;

# pfSense

61.31.169.147/32

# Cloudflare WAF

ip.src eq 61.31.169.147 — action: block

# AWS WAF

Addresses: ["61.31.169.147/32"] — Description: IPDebrief risk 55

```

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## INTELLIGENCE ASSESSMENT

This IP presents a moderate risk profile typical of mobile-originated web servers. The combination of mobile carrier infrastructure, legacy SSH service support, and multiple DNSBL listings warrants monitoring. While no active threat indicators were detected, the elevated risk score (55/100) combined with DNSBL presence suggests potential abuse history or borderline behavior.

Recommended SOC Actions:

1. Implement rate limiting for this IP source

2. Monitor for port scanning or brute force activity

3. Review historical traffic patterns for anomalies

4. Consider blocking if business justification exists

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*Generated by IPDebrief Intelligence Platform*

*Analysis based on current available data signals*

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