176.103.21.86📋 Copy

# INTELLIGENCE BRIEFING: 176.103.21.86/32

Date: 2026-07-29

Classification: High Risk (Score: 70/100)

Status: Active Monitoring Recommended

## EXECUTIVE SUMMARY

IP address 176.103.21.86 is classified as high risk (70/100) with no open services detected. The IP is registered to DIALOG-NET (ASN: 56812) within the 176.103.0.0/19 CIDR block. Geovalidation inconsistencies noted—reports cite both London, GB and Kharkiv, Ukraine—with geo plausibility flagged as false. DNSBL listings detected across 4 of 8 total lists despite zero blacklist count. No active threat indicators, campaigns, or known attacker associations.

## NETWORK ATTRIBUTES

• ASN: 56812 (DIALOGKOM-MNT)
• Organization: DIALOG-NET
• Network: 176.103.0.0/19
• RIR: RIPE
• Registration: 2026-07-29
• Service Profile: Firewalled / No Services
• Open Ports: None detected
• TLS/HTTP Services: None

## GEOGRAPHIC INTELLIGENCE

Location data presents inconsistencies:

• Primary reports: London, GB
• Secondary reports: Kharkiv, Kharkivs'ka Oblast', Ukraine
• Geo Plausibility: False (indicator of unreliable or conflicting data sources)
• DNSSEC: Valid
• Control plane route stability: False

## THREAT INDICATORS

• Known Attacker: No
• Spam Source: No
• Tor Exit Node: No
• Campaign Affiliation: None detected
• Threat Feeds: Empty
• Blacklist Count: 0
• DNSBL Lists: 4 of 8 total

## NEIGHBORHOOD ANALYSIS

Subnet 176.103.21.0/24 assessment:

• Abuse Density: 0.2 (moderate)
• Classification: Mostly Clean
• Total Siblings: 5
• Active Siblings: 1
• Threat Siblings: 1

Sibling IP risk distribution:

• 176.103.21.14: Risk 40/100
• 176.103.21.31: Risk 55/100
• 176.103.21.64: Risk 40/100
• 176.103.21.170: Risk 55/100

## OBSERVATION HISTORY

Fourteen observations recorded through 2026-07-29. Recent signals include network classification, geolocation updates, and traceroute data. No persistent malicious activity detected. No ownership changes observed.

## RECOMMENDED ACTIONS

Severity: HIGH

Primary Recommendation: Increase logging verbosity and review recent activity from this IP due to elevated risk score (70/100).

Firewall Rules:

```

iptables: iptables -A INPUT -s 176.103.21.86 -j DROP

nftables: nft add rule inet filter input ip saddr 176.103.21.86 drop

nginx: deny 176.103.21.86;

pfSense: 176.103.21.86/32

```

Monitoring: Consider implementing rate limiting or connection blocking if traffic observed. No services detected on this IP, but the risk score warrants defensive posture.

## SOC NOTES

• Geo-inconsistencies between London and Ukraine require correlation with traffic patterns
• DNSBL presence (4 lists) despite zero blacklist count may indicate false positives or niche feed matches
• Route stability flag suggests potential BGP anomalies
• No immediate blocking required unless traffic observed; monitor for service emergence

Analyst Action: Monitor for traffic patterns. If activity detected, implement blocking per firewall rules above.

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