85.203.21.75📋 Copy

# IP Intelligence Briefing: 85.203.21.75/32

Classification: Moderate Risk / Active Threat Observation

Date: Current

Status: Actionable Intelligence

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## Executive Summary

IP address 85.203.21.75 presents a moderate risk profile (Score: 40/100) with active threat indicators and significant neighborhood abuse density. The IP is classified as a VPN-Consumer-Network with 8 active blacklist listings including high-severity entries. Neighborhood analysis reveals 64 active sibling IPs with 94 threat siblings in the 85.203.21.0/24 subnet, indicating concentrated abuse activity.

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## Network Ownership & Infrastructure

• ASN: 206092 (SECFIREWALLAS - F.N.S. HOLDINGS LIMITED, CY)
• Organization: Jeroen van veen / F.N.S. HOLDINGS LIMITED
• Location: Singapore (1.35°N, 103.82°E)
• Registry: RIPE
• Classification: VPN-Consumer-Network
• Infrastructure Type: Firewall / No Services

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## Threat Assessment

Risk Score: 40/100 (Moderate)

Abuse Confidence: Active blacklist presence confirmed

Threat Indicators:

• Blacklist listings: 8 total (1 currently listed with high severity)
• Known campaigns: None correlated
• Not identified as Tor exit, known attacker, or spam source

Neighborhood Analysis (85.203.21.0/24):

• Subnet abuse density: 0.6225 (high abuse classification)
• Total siblings: 151
• Active siblings: 64
• Threat siblings: 94
• Inherited risk score: 24

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## Observed Behavior & History

17 signal observations recorded. Recent activity includes:

• Subnet abuse density classification at 0.6225
• Geo validation confirming Singapore location with plausible RTT measurements (254ms avg)
• DNS blacklist activity across 8 lists
• ASN registration pointing to Cayman Islands entity

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## Recommended Actions

Immediate Mitigation

Block traffic from 85.203.21.75/32 across all ingress points:

• iptables: `iptables -A INPUT -s 85.203.21.75 -j DROP`
• nftables: `nft add rule inet filter input ip saddr 85.203.21.75 drop`
• nginx: `deny 85.203.21.75;`
• pfSense: `85.203.21.75/32`
• Cloudflare WAF: Block with filter `ip.src eq 85.203.21.75`
• AWS WAF: Add `85.203.21.75/32` to web ACL

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## Intelligence Notes

The IP exhibits VPN-network infrastructure characteristics with no active services or open ports. The high neighborhood abuse density suggests the /24 block is being utilized for abuse campaigns. Recommend blocking the full 85.203.21.0/24 subnet in addition to the single IP if operational capacity permits.

Threat Persistence: No persistent malicious behavior observed

Campaign Correlation: None identified

Geo Consensus: Valid (Singapore)

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*Report generated from IPDebrief intelligence platform data. Combine with other signals before taking remediation action.*

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