188.143.232.243📋 Copy

# INTELLIGENCE BRIEFING: 188.143.232.243/32

## EXECUTIVE SUMMARY

IP 188.143.232.243 is a Russian-origin address with a moderate risk score of 40. The address resides within a high-abuse subnet (188.143.232.0/24) showing 0.7812 abuse density with 200 threat-sibling IPs. Current profile indicates no active threat indicators, but the network context and historical signals warrant defensive monitoring.

## OWNERSHIP & GEOLOCATION

• Owner: Leon Lundberg (ASN 34665)
• Network Name: LeonLundberg-net
• Location: St Petersburg, Russia (RU)
• RIR: RIPE
• CIDR Block: 188.143.232.0/23
• Geolocation Confidence: Consensus-based (1 source)

## RISK ASSESSMENT

## THREAT INDICATORS

• Known Attacker: No
• Spam Source: No
• Tor Exit Node: No
• Campaign Affiliation: None detected
• Threat Feeds: No active matches
• Abuse Confidence Score: Not available

## NETWORK BEHAVIOR

• Service Status: Firewalled / No Services Detected
• Open Ports: None
• DNS Resolution: No forward resolution
• Email Authentication: No SPF/DMARC records
• SSL/TLS: No certificates detected

## NEIGHBORHOOD ANALYSIS (188.143.232.0/24)

• Total Siblings: 256
• Active Siblings: 161
• Threat Siblings: 200
• Abuse Density: 0.7812 (High Abuse Classification)
• Inherited Risk: 31
• Risk Distribution: 92 Low, 8 Medium, 0 High

The subnet demonstrates significant malicious activity with 78% of active IPs classified as threats. This contextual risk factor elevates the threat posture for this address.

## OBSERVATION HISTORY

• Total Observations: 24 signals
• Observation Period: June 2024–June 2026
• Recent Trends: Minimal operator scores (0.2174)
• Persistence: Not persistently malicious
• Threat Observation Count: 1

Historical data indicates no escalating threat behavior, though DNSBL listing persists across 8 lists.

## RECOMMENDED ACTIONS

Immediate Mitigation

Block the address at network perimeter and application layers:

iptables:

```

iptables -A INPUT -s 188.143.232.243 -j DROP

```

nftables:

```

nft add rule inet filter input ip saddr 188.143.232.243 drop

```

nginx:

```

deny 188.143.232.243;

```

pfSense:

```

188.143.232.243/32

```

Cloudflare WAF:

```json

{"description":"Block 188.143.232.243 — IPDebrief risk score 40","action":"block","filter":{"expression":"ip.src eq 188.143.232.243"}}

```

AWS WAF:

```json

{"Addresses":["188.143.232.243/32"],"Description":"IPDebrief risk 40"}

```

## SOC RECOMMENDATIONS

1. Block the IP at edge firewall and WAF levels

2. Monitor for lateral connections to related IPs in 188.143.232.0/24

3. Review logs for any inbound connections from this subnet

4. Update threat intelligence feeds with ASN 34665 if not already present

5. Consider blocking the entire /24 subnet given the 0.7812 abuse density

## CONCLUSION

While the individual IP shows no active malicious indicators, the high-abuse subnet context and DNSBL listings justify defensive blocking. The address is best classified as "moderate risk due to network association" requiring perimeter filtering.

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