ABUSE.MOM
THREAT REPORT

IP Threat Report
52.143.158.250

ABUSE.MOM — BEHAVE OR GET EXPOSED

Generated: 2026-05-20 20:43:29
First seen: 2026-04-09 15:00:07
Last seen: 2026-04-09 19:00:06
245

⛔ Verdict: BLOCK

This IP address has been classified as a source of malicious automated activity. Threat score: 245/100. Total malicious requests observed: 6.

UA_SUSDANGER_PATHBURST
01

Geolocation & Classification

IP Address
52.143.158.250
Type
Hosting
Country
🇫🇷 France
City
Paris
ISP
Microsoft Corporation
Organization
Microsoft Azure Cloud (francecentral)
Autonomous System
AS8075 Microsoft Corporation
Hit Count
6
02

Detection Signatures

SignatureDescriptionPointsSeverity
UA suspicious (short/empty)Behavioral anomaly detected by automated analysis+15
Danger strong hits: 21High-risk paths: shells, RCE vectors, exploits+100
Danger medium hits: 346Medium-risk: admin panels, config files+60
Burst: 41 req / 2sAbnormally fast request rate — automated scanning+35
Burst: 133 req / 10sAbnormally fast request rate — automated scanning+35
Burst: 35 req / 2sAbnormally fast request rate — automated scanning+35
Burst: 112 req / 10sAbnormally fast request rate — automated scanning+35
Danger strong hits: 28High-risk paths: shells, RCE vectors, exploits+100
Danger medium hits: 519Medium-risk: admin panels, config files+60
Burst: 33 req / 2sAbnormally fast request rate — automated scanning+35
Burst: 113 req / 10sAbnormally fast request rate — automated scanning+35
Burst: 122 req / 10sAbnormally fast request rate — automated scanning+35
Burst: 50 req / 2sAbnormally fast request rate — automated scanning+35
Burst: 167 req / 10sAbnormally fast request rate — automated scanning+35
Burst: 42 req / 2sAbnormally fast request rate — automated scanning+35
Burst: 137 req / 10sAbnormally fast request rate — automated scanning+35
Σ = 720
03

Observed Activity

Reconstructed HTTP requests from server access logs. Target domains redacted for security.

[redacted]
GET
/
200
[redacted]
GET
/page
200
Requests shown: 2 · HTTP 404: 0 · Dangerous patterns: 0

* Typical request patterns for detected signatures. Actual target domains are redacted.

04

Timeline

2026-04-09 15:00:07
First malicious request detected
IP entered monitoring from server access logs
During observation
Multiple detection signatures triggered
UA suspicious (short/empty) (+15), Danger strong hits: 21 (+100), Danger medium hits: 346 (+60)
2026-04-09 19:00:06
Last malicious request observed
Total score reached: 245/100
Next cycle
IP blocked — all subsequent requests denied (HTTP 403)
Added to blocklist automatically
05

Network Provider

Microsoft Corporation
AS8075 · 🇫🇷 France
06

Recommendations

Actions taken & recommended

  • IP 52.143.158.250 is blocked at application level (HTTP 403)
  • Consider blocking at firewall level (iptables/CSF) to reduce server load
  • Report abuse to the network provider via their abuse contact
  • Ensure sensitive files (.env, .git, backups) are not accessible from the web

🤖 Bot Detection

Address UA spoofing from 52.143.158.250: maintain blocklist of known malicious UA strings, require consistent UA across sessions, implement TLS fingerprinting.

🌊 Flood / DDoS Mitigation

Implement limit_req_zone in nginx. Deploy CDN with DDoS protection. Configure SYN cookies and connection tracking to throttle 52.143.158.250.

09

Blacklist Status (DNSBL)

This IP was checked against major DNS-based blacklists used by mail servers and firewalls worldwide.

✓ Clean
ix.dnsbl.manitu.net
✓ Clean
zen.spamhaus.org
✓ Clean
bl.spamcop.net
✓ Clean
dnsbl.sorbs.net
✓ Clean
b.barracudacentral.org
✓ Clean
truncate.gbudb.net
✓ Clean
psbl.surriel.com
✓ Clean
dnsbl-1.uceprotect.net

Checked: Spamhaus, SpamCop, Barracuda, SORBS, CBL, UCEProtect. Results may change over time.

10

Threat Analysis

52.143.158.250 has been assigned a threat score of 245/100 (Critical). With this rating, the IP falls into the critical severity bracket — among the most dangerous addresses in our monitoring database.

The following attack categories were identified:

User-Agent AnomalyRequest Flooding

📊 Threat Analysis

IP address 52.143.158.250 has been traced to Paris, France, operating on the network of Microsoft Corporation. Our threat detection systems have flagged this address based on observed malicious behavior patterns. The address has been active for 1 days in our monitoring system, producing 6 flagged requests at a rate of ~6/day. Classified as a hosting IP, this address likely runs on a rented server or cloud instance. Attackers prefer datacenter IPs for their high bandwidth and disposable nature. The dual attack vectors of User-Agent Anomaly combined with Request Flooding indicate a coordinated assault rather than opportunistic scanning. France currently accounts for 101 blocked IPs in our database, making it a significant source of malicious traffic. At 245/100, this is an extremely high-risk address. All traffic should be considered hostile.

This IP belongs to a hosting or data center provider. Malicious traffic from hosting infrastructure often originates from compromised VPS instances, rented servers used for scanning campaigns, or abused free-tier cloud accounts. Hosting providers typically respond to abuse reports within 24-72 hours.

11

Related Threats

🇫🇷 Top threats from France

185.177.72.11 (348)185.177.72.16 (348)185.177.72.67 (348)185.177.72.10 (348)185.177.72.29 (348)View all →

🏢 Same network: AS8075

74.241.249.229 (340)4.182.24.88 (285)20.65.61.3 (283)4.205.39.97 (283)20.29.71.103 (283)View all →
12

Security Intelligence

💡 User-Agent Analysis Techniques

Analyzing User-Agent strings reveals automated tools masquerading as legitimate browsers. Inconsistencies between claimed browser capabilities and actual behavior, impossible version combinations, and known scanner signatures help identify malicious clients.

💡 Subnet-Level vs IP-Level Blocking

When multiple IPs in a subnet show malicious behavior, subnet blocking efficiently neutralizes the threat. However, overly broad blocking risks impacting legitimate users. Analysis of subnet ownership and historical behavior guides appropriate blocking scope.

🔍 Check Any IP Address

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