5.167.65.10📋 Copy

INTELLIGENCE BRIEFING: 5.167.65.10/32

Classification: MODERATE RISK (Score: 40)

Date: 2026-06-24

Origin: Russia (RU) – Cheboksary

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OWNER/NETWORK CONTEXT

• Organization: JSC ER-Telecom Holding (Network Operation Center, Cheboksary branch)
• ASN: AS57026
• Network Block: 5.167.64.0/22
• Network Role: Residential endpoint (PPPoE dial-up)
• Registration: RIR Ripe, Russia

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THREAT INDICATORS

• Current Risk Level: Moderate (40/100)
• Threat Indicators: None directly flagged (not Tor exit, not known attacker, not spam source)
• DNSBL Status: Listed on 1 of 8 threat feeds
• Abuse Confidence: Elevated due to neighborhood context
• Known Campaigns: None correlated

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NEIGHBORHOOD ANALYSIS

• Subnet: 5.167.65.0/24
• Abuse Density: HIGH (1.0)
• Risk Classification: High abuse subnet
• Active Siblings: 124 of 256 total IPs
• Risk Distribution: 0% high, 96% medium, 4% low
• Context: This IP resides in a high-abuse residential subnet with 96 medium-risk neighbors

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OBSERVATION HISTORY

• Total Observations: 46 signals
• Recent Activity: Multiple blacklist listings observed (2026-06-24)
• Geolocation Consistency: Stable (Cheboksary, RU)
• Threat Persistence: Single threat observation event
• Notable: Recent signals indicate 8 blacklist listings with high severity

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INFRASTRUCTURE DETAILS

• DNS PTR: 5x167x65x10.dynamic.cheb.ertelecom.ru
• Forward Resolution: Unconfirmed
• Open Ports: None detected
• HTTP/TLS: No web services exposed
• Email Auth: SPF and DMARC configured

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RECOMMENDED ACTIONS

BLOCK this IP at perimeter defenses due to:

• Moderate risk score (40) combined with high-abuse neighborhood
• DNSBL listings with high severity
• Residential subnet with elevated abuse density

Firewall Rules Generated:

• iptables: `iptables -A INPUT -s 5.167.65.10 -j DROP`
• nftables: `nft add rule inet filter input ip saddr 5.167.65.10 drop`
• Cloudflare WAF: Block with expression `ip.src eq 5.167.65.10`
• AWS WAF: IPSet with CIDR `5.167.65.10/32`

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SOC ASSESSMENT

This IP represents a moderate-risk residential endpoint in a high-abuse Russian subnet. While not directly flagged as malicious infrastructure, the subnet abuse density (1.0) and blacklist presence warrant defensive blocking. Monitor for lateral activity within the 5.167.65.0/24 neighborhood. No evidence of hosting services or active scan activity detected.

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