164.90.177.94📋 Copy

# IPDEBRIEF INTELLIGENCE BRIEFING

Target: 164.90.177.94/32

Classification: Cloud Infrastructure IP

Date: Current Analysis

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## EXECUTIVE SUMMARY

IP 164.90.177.94 is a DigitalOcean cloud compute infrastructure address located in Frankfurt am Main, Germany. The IP carries a moderate risk score of 40 with no active threat indicators, but presents elevated DNSBL presence (2 of 8 lists). Neighborhood analysis confirms clean subnet classification with zero threat siblings. No active services are detected; the IP appears firewalled with no open ports.

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## NETWORK OWNERSHIP & CLASSIFICATION

• Organization: DigitalOcean, LLC (ASN: 14061)
• Network Name: DIGITALOCEAN-164-90-128-0
• CIDR Block: 164.90.128.0/17
• Infrastructure Type: CloudCompute (Cloud-hosted)
• Geolocation: Frankfurt am Main, Hesse, DE (Europe/Berlin timezone)
• Geolocation Confidence: High (geoPlausible: true)

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## RISK ASSESSMENT

Threat Indicators: None detected. IP is not flagged as a Tor exit node, known attacker, or spam source. No known campaigns or threat feed matches.

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## NEIGHBORHOOD ANALYSIS

• Subnet: 164.90.177.94/24
• Abuse Density: 0 (clean)
• Classification: clean
• Threat Siblings: 0
• Total Siblings: 1
• Inherited Risk: 0

The subnet exhibits clean classification with no neighboring IPs showing threat activity.

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## SERVICE & PORT ANALYSIS

• Open Ports: None detected
• HTTP Title: None
• TLS Certificate: None
• DNS Resolution: Forward resolution not confirmed
• PTR Hostnames: None

The IP appears to be a firewalled cloud endpoint with no active services exposed.

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## OBSERVATION HISTORY

Total Observations: 17 signals

Recent Signals:

• 2026-08-05 21:59: Subnet classification reported as "clean"
• 2026-08-05 21:57: Operator score reported as "Minimal"
• 2026-07-30 14:17: Geolocation validation confirmed (296.5km distance from probe, 119-123ms RTT)

Temporal Analysis: No ownership changes detected. Threat persistence days: 0. Not persistently malicious.

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## RELATIONSHIP MAPPING

Seven relationships detected, all classified as "Same Network" pointing to DIGITALOCEAN-164-90-128-0 network block. No external entity relationships identified.

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## CONTROL PLANE DATA

• BGP Prefix: 164.90.176.0/20
• Route Stability: Not stable
• DNSSEC Valid: true
• IRR Consistency: Not evaluated
• Route Changes (30d): 0

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## RECOMMENDED ACTIONS

Firewall Rules:

• iptables: `iptables -A INPUT -s 164.90.177.94 -j DROP`
• nftables: `nft add rule inet filter input ip saddr 164.90.177.94 drop`
• nginx: `deny 164.90.177.94;`
• pfSense: `164.90.177.94/32` (block rule)
• Cloudflare WAF: Block IP (risk score 40)
• AWS WAF: Add IP to blocked addresses

Rationale: While the IP shows no active threat indicators and clean neighborhood classification, the moderate risk score (40) combined with DNSBL presence warrants defensive blocking. The IP serves as a cloud infrastructure endpoint with no open services, but blocking eliminates potential abuse surface.

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## ANALYST NOTES

This IP represents a legitimate DigitalOcean cloud compute endpoint in Frankfurt. The moderate risk score is primarily driven by DNSBL presence rather than active threat activity. Given the clean neighborhood and lack of open services, blocking is recommended as a defensive measure but should be balanced against operational requirements if this IP serves legitimate traffic patterns. Continuous monitoring advised.

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