52.167.144.160📋 Copy

# INTELLIGENCE BRIEFING: 52.167.144.160

## EXECUTIVE SUMMARY

IP address 52.167.144.160 is associated with Microsoft Corporation's Bing search bot infrastructure. The IP presents moderate risk (score: 40) and resolves to Microsoft's search crawler hostname. While the IP itself shows no direct threat indicators, the associated subnet (52.167.144.0/24) exhibits elevated abuse density, warranting monitored engagement rather than immediate blocking.

---

## OWNERSHIP & INFRASTRUCTURE

---

## RISK ASSESSMENT

• Overall Risk Score: 40 (Moderate Risk)
• Abuse Confidence: Not flagged as known attacker or spam source
• Blacklist Status: 0 entries
• Threat Indicators: None detected
• Control Plane: Route stable but flagged as MOAS (Multiple Origin ASN Subnet)

---

## NEIGHBORHOOD ANALYSIS

The /24 subnet (52.167.144.0/24) shows concerning aggregation characteristics:

• Total Siblings: 85 IPs
• Active Siblings: 61
• Threat Siblings: 56
• Abuse Density: 0.6588 (HIGH_ABUSE)
• Risk Distribution: 0 High | 84 Medium | 6 Low

*Note: This suggests the subnet is heavily utilized for legitimate Microsoft infrastructure but may contain compromised endpoints.*

---

## OBSERVATION HISTORY (Last 20 Signals)

Recent observations indicate normal operational patterns:

• June 28, 2026: DNS resolution to msn.com with CAA records present
• June 20, 2026: Multiple port scans detected (no open services)
• ICMP Validation: Failed (blocked)
• Operator Score: 0.3478 (Basic classification)

---

## NETWORK RELATIONSHIPS

30 relationships identified, primarily:

• DNS Associations: msnbot-52-167-144-160.search.msn.com (25 instances)
• Network Associations: MSFT network (5 instances)

---

## RECOMMENDED ACTIONS

Firewall Rules (Apply with caution)

Analyst Recommendation

Do not block immediately. This IP belongs to Microsoft's legitimate Bing search infrastructure. However, consider:

1. Rate Limit: If traffic exceeds expected crawl behavior, apply rate limiting

2. Monitor: Watch for deviations from normal search bot patterns

3. Context: If this IP appears in attack logs, investigate whether abuse is occurring from a compromised endpoint in the same subnet

---

## INDICATORS

No threat indicators present.

• No known campaigns
• No malicious certificates
• No email reputation issues
• No DNSBL listings on this IP (parent subnet flagged for high abuse)

---

*Intel generated from IPDebrief analysis. Combine with additional signals before implementing blocking actions.*

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