52.167.144.237📋 Copy

## IP Intelligence Briefing: 52.167.144.237

Classification: Moderate Risk (Score: 40)

Date: Intelligence compiled from IPDebrief data

Status: Active cloud infrastructure with benign search bot designation

---

Ownership & Geolocation

• Organization: Microsoft Corporation (AS8075)
• Network Type: Cloud compute infrastructure
• Location: Madison, Wisconsin, US
• Registration: ARIN registry
• CIDR Block: 52.160.0.0/11 (BGP prefix)

Network Role Classification

• Primary Role: Bingbot (Microsoft search crawler)
• Infrastructure: Cloud-based computing environment
• Service Status: Firewalled / No open services detected
• Cloud Provider: Microsoft Azure

DNS Resolution

• PTR Hostname: msnbot-52-167-144-237.search.msn.com
• Forward Resolution: Confirmed (msn.com domain)
• Email Authentication: SPF and DMARC records present
• Certificate Authority Records: Valid CAA records configured

Threat Indicators

• Abuse Confidence Score: Not applicable (benign designation)
• Blacklist Count: 0
• Campaign Association: None identified
• Threat Feeds: No malicious indicators
• Known Attacker: No
• Spam Source: No
• Tor Exit Node: No

Neighborhood Analysis (52.167.144.0/24)

• Subnet Abuse Density: 0.5604 (High Abuse Classification)
• Total Sibling IPs: 91
• Active Siblings: 70
• Threat Siblings: 51
• Risk Distribution: Medium (84), Low (6), High (0)
• Inherited Risk Score: 22

Observation History

• Total Signals: 22 observations
• Recent Activity: June 26, 2026
• Classification Stability: Consistent Bingbot designation
• Threat Persistence: Not persistently malicious
• Ownership Changes: None recorded

Security Actions & Recommendations

Recommended Firewall Rules:

```bash

# iptables

iptables -A INPUT -s 52.167.144.237 -j DROP

# nftables

nft add rule inet filter input ip saddr 52.167.144.237 drop

# Cloudflare WAF

Block IP 52.167.144.237 — IPDebrief risk score 40

```

Assessment: The IP address is a Microsoft Bing search bot operating from Microsoft Azure infrastructure. While the individual IP shows moderate risk (40), this is attributed to its high-abuse density neighborhood context rather than malicious behavior. The bot performs legitimate search crawler operations and is properly authenticated with SPF/DMARC records.

Recommended Action: Allow traffic if legitimate search bot detection is in place; otherwise, blocking may prevent legitimate Microsoft services. Monitor for any behavioral changes indicative of compromised search bot infrastructure.

Confidence Level: High — Based on authoritative Microsoft ASN data, DNS resolution verification, and consistent cloud infrastructure classification.

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