211.252.42.171📋 Copy

# IP Intelligence Briefing: 211.252.42.171/32

## Executive Summary

IP address 211.252.42.171 is assessed as High Risk with an overall risk score of 80/100. The address is associated with mobile infrastructure (KT Corporation) in South Korea and presents multiple threat indicators requiring defensive action.

## Ownership & Geolocation

• ASN: 4766 (IP Manager)
• Organization: IP Manager
• Country: South Korea (KR)
• City: Ansan-si
• RIR: APNIC
• Network Block: 211.252.0.0/15

## Network Classification

• Connection Type: Mobile (LTE/5G)
• Mobile Carrier: KT Corporation (MCC: 450, MNC: 08)
• Service Purpose: Single-Service Host
• Infrastructure Type: Not CDN, Cloud, VPN, Proxy, or Tor exit node

## Threat Assessment

• Risk Score: 80/100 (Critical)
• DNSBL Listings: 5 of 8 total blacklists
• Threat Indicators: Present
• Campaign Association: None correlated

## Observed Services

• Port 22 (SSH): Open with dropbear SSH banner detected
• SSL/TLS: No certificates observed

## Neighborhood Analysis

• Subnet: 211.252.42.0/24
• Abuse Density: 1
• Classification: Mostly Clean (with inherited risk)
• Active Threat Siblings: 1

## Historical Observations

Recent observations (June 2026) indicate:

• Multiple threat reputation signals with high confidence
• Blacklist listings across 8+ sources
• Operator score: 0.1304 (Minimal)
• Routing stability concerns (route changes observed)
• DNSSEC validation: Valid

## Recommended Actions

Immediate Mitigation

Block this IP address at perimeter security controls:

iptables:

```

iptables -A INPUT -s 211.252.42.171 -j DROP

```

nftables:

```

nft add rule inet filter input ip saddr 211.252.42.171 drop

```

nginx:

```

deny 211.252.42.171;

```

pfSense:

```

211.252.42.171/32

```

Cloudflare WAF:

```json

{

"description": "Block 211.252.42.171 — IPDebrief risk score 80",

"action": "block",

"filter": {

"expression": "ip.src eq 211.252.42.171"

}

}

```

AWS WAF:

```json

{

"Addresses": ["211.252.42.171/32"],

"Description": "IPDebrief risk 80"

}

```

Additional Recommendations

• Increase logging verbosity and review recent activity from this IP address
• Monitor for SSH connection attempts from this address
• Review any existing connections and terminate if unauthorized

## Intelligence Notes

The IP address demonstrates mobile carrier infrastructure characteristics with associated reputation issues across multiple threat feeds. The combination of mobile origin, DNSBL listings, and elevated risk score warrants immediate blocking and continued monitoring for lateral threat activity within the associated network block.

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