ABUSE.MOM
THREAT REPORT

IP Threat Report
52.141.21.220

ABUSE.MOM — BEHAVE OR GET EXPOSED

Generated: 2026-05-26 21:47:05
First seen: 2026-05-05 04:00:06
Last seen: 2026-05-05 06:00:05
155

⛔ Verdict: BLOCK

This IP address has been classified as a source of malicious automated activity. Threat score: 155/100. Total malicious requests observed: 5.

DANGER_PATHBURSTRATIO_404
01

Geolocation & Classification

IP Address
52.141.21.220
Type
Hosting
Country
🇰🇷 South Korea
City
Seoul
ISP
Microsoft Corporation
Organization
Microsoft Azure Cloud (koreacentral)
Autonomous System
AS8075 Microsoft Corporation
Hit Count
5
02

Detection Signatures

SignatureDescriptionPointsSeverity
Danger medium hits: 26Medium-risk: admin panels, config files+60
Burst: 12 req / 2sAbnormally fast request rate — automated scanning+35
Burst: 27 req / 10sAbnormally fast request rate — automated scanning+35
404 ratio >= 60%Majority of requests returned 404 — enumeration+25
Burst: 11 req / 2sAbnormally fast request rate — automated scanning+35
Σ = 190
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

2026-05-05 04:00:06
First malicious request detected
IP entered monitoring from server access logs
During observation
Multiple detection signatures triggered
Danger medium hits: 26 (+60), Burst: 12 req / 2s (+35), Burst: 27 req / 10s (+35)
2026-05-05 06:00:05
Last malicious request observed
Total score reached: 155/100
Next cycle
IP blocked — all subsequent requests denied (HTTP 403)
Added to blocklist automatically
05

Network Provider

Microsoft Corporation
AS8075 · 🇰🇷 South Korea
06

Recommendations

Actions taken & recommended

  • IP 52.141.21.220 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

🌊 Traffic Flood Defense

IP 52.141.21.220 is generating excessive traffic. Limit connections per source IP. Enable geographic blocking if traffic from this region is unexpected.

🔎 Directory Scan Defense

IP 52.141.21.220 is enumerating directories. Configure fail2ban apache-404 jail after 10+ 404 errors. Disable directory listings. Normalize all 404 responses.

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

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

10

Threat Analysis

52.141.21.220 has been assigned a threat score of 155/100 (Critical). This places it in the critical threat category. Immediate blocking is strongly advised across all network perimeters.

The following attack categories were identified:

Request FloodingPath Enumeration

📊 Threat Analysis

Our monitoring infrastructure has identified 52.141.21.220, geolocated to Seoul, South Korea, operating on the network of Microsoft Corporation, as a source of suspicious network activity. Over a period of 1 days, this IP generated 5 malicious requests, averaging approximately 5 requests per 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 Request Flooding combined with Path Enumeration indicate a coordinated assault rather than opportunistic scanning. Our records show 101 malicious IPs originating from South Korea, positioning it as a significant contributor to global threat activity. At 155/100, 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 South Korea

4.217.180.34 (280)20.214.155.242 (280)20.214.157.214 (280)52.231.66.246 (280)20.194.25.241 (280)View all →

🏢 Same network: AS8075

74.241.249.229 (340)20.151.111.128 (308)4.182.24.88 (285)20.65.61.3 (283)4.205.39.97 (283)View all →
12

Security Intelligence

💡 File Upload Vulnerabilities

Insecure file upload functionality allows attackers to upload web shells, malware, or scripts that execute on the server. Proper validation must check file content, not just extensions, and uploaded files should be stored outside the web root.

💡 GraphQL Security Risks

GraphQL APIs introduce specific vulnerabilities including introspection information disclosure, query complexity attacks, batching abuse, and authorization bypass through nested queries. Depth limiting, cost analysis, and field-level authorization address these GraphQL-specific threats.

🔍 Check Any IP Address

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