177.23.136.82📋 Copy

# IP INTELLIGENCE BRIEFING

Target: 177.23.136.82/32

Classification: High Risk (Score: 80/100)

Date: Current Assessment

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## EXECUTIVE SUMMARY

IP address 177.23.136.82 is classified as high risk based on comprehensive threat intelligence analysis. The IP is associated with ITANET CONECTA LTDA (ASN 52699) and registered within the 177.23.136.0/22 CIDR block in Rio de Janeiro, Brazil. Despite the absence of active threat indicators, the elevated risk score (80) combined with DNS blacklist listings (5 of 8 total lists) warrants defensive monitoring and potential blocking.

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## OWNERSHIP & GEOLOCATION

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## THREAT INDICATORS

• Risk Score: 80/100 (High Risk)
• Provider Score: 0
• Authority Score: 0
• DNS Blacklist Status: Listed on 5 of 8 threat feeds
• Tor Exit Node: No
• Known Attacker: No
• Spam Source: No
• Open Ports: None detected
• TLS Certificate: None detected
• Campaign Likelihood: Not identified

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## NETWORK CONTEXT

Subnet Analysis (177.23.136.0/24):

• Total Neighbors: 1
• Neighbor Risk: 177.23.136.84 (Risk: 40, Authority: 60)
• Subnet Abuse Density: 0
• Risk Distribution: 1 medium risk IP identified

Control Plane:

• BGP Prefix: 177.23.136.0/23
• Route Stability: False
• DNSSEC Valid: Yes
• Operator Score: 0.2609 (Basic)

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## OBSERVATION HISTORY

Recent signal activity recorded from 2026-07-27:

• Network Role: Consistently classified as Firewalled / No Services
• Service Scanning: Multiple port scans detected
• Ownership Signals: 0 ownership changes observed
• Threat Persistence: 0 days (not persistently malicious)
• Observation Count: 15 total signals analyzed

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## RELATIONSHIP MAPPING

DNS associations identified:

• 177.23.136.82.voxisp.com.br (multiple associations)
• Network 418192 (same network classification)

No external hostname or organizational relationships beyond DNS and network associations.

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## RECOMMENDED ACTIONS

Immediate:

• Increase logging verbosity and review recent activity from this IP
• Implement blocking at perimeter firewall

Firewall Rules:

• iptables: `iptables -A INPUT -s 177.23.136.82 -j DROP`
• nftables: `nft add rule inet filter input ip saddr 177.23.136.82 drop`
• nginx: `deny 177.23.136.82;`
• pfSense: `177.23.136.82/32`
• Cloudflare WAF: Block IP (Expression: `ip.src eq 177.23.136.82`)
• AWS WAF: Add IP to block list

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## INTELLIGENCE NARRATIVE

The IP 177.23.136.82 presents an elevated risk profile (80/100) despite lacking active threat indicators. The primary concern stems from DNS blacklist enumeration (5 of 8 lists), which suggests prior compromise or abuse activity. The IP is geolocated to Rio de Janeiro, Brazil, under ITANET CONECTA LTDA infrastructure. No current services are running on the host, indicating the IP may be reserved, firewalled, or repurposed. The single neighboring IP (177.23.136.84) shows medium risk with authority scoring of 60, suggesting potential subnet-wide activity requiring broader monitoring.

Recommendation: Implement blocking rules at perimeter defense systems and maintain enhanced logging for forensic analysis. Monitor subnet 177.23.136.0/24 for correlated activity patterns.

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