ABUSE.MOM
THREAT REPORT

IP Threat Report
43.166.9.237

ABUSE.MOM — BEHAVE OR GET EXPOSED

Generated: 2026-10-30 22:03:43
First seen: 2026-08-29 14:28:18
Last seen: 2026-10-30 21:58:13
80

⛔ Verdict: BLOCK

This IP address has been classified as a source of malicious automated activity. Threat score: 80/100. Total malicious requests observed: 590.

BURSTRATIO_404REDIRECT_PROBEREFERER
01

Geolocation & Classification

IP Address
43.166.9.237
Type
Hosting
Country
🇰🇷 South Korea
City
Seoul
ISP
Shenzhen Tencent Computer Systems Company Limited
Organization
Tencent Cloud Computing (Beijing) Co., Ltd
Autonomous System
AS132203 Tencent Building, Kejizhongyi Avenue
Hit Count
590
02

Detection Signatures

SignatureDescriptionPointsSeverity
404 ratio 40-60%Majority of requests returned 404 — enumeration+15
Burst 25/2sAbnormally fast request rate — automated scanning+35
Burst 27/10sAbnormally fast request rate — automated scanning+35
Foreign refererReferer from unrelated external domain+10
Probe 302→404Behavioral anomaly detected by automated analysis+20
Σ = 115
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

2026-08-29 14:28:18
First malicious request detected
IP entered monitoring from server access logs
During observation
Multiple detection signatures triggered
404 ratio 40-60% (+15), Burst 25/2s (+35), Burst 27/10s (+35)
2026-10-30 21:58:13
Last malicious request observed
Total score reached: 80/100
Next cycle
IP blocked — all subsequent requests denied (HTTP 403)
Added to blocklist automatically
05

Network Provider

Shenzhen Tencent Computer Systems Company Limited
AS132203 · 🇰🇷 South Korea

We have detected 163 malicious IPs from this autonomous system.

View all IPs from AS132203 →
06

Recommendations

Actions taken & recommended

  • IP 43.166.9.237 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

🔎 Directory Scan Defense

IP 43.166.9.237 is enumerating directories. Configure fail2ban apache-404 jail after 10+ 404 errors. Disable directory listings. Normalize all 404 responses.

🌊 Traffic Flood Defense

IP 43.166.9.237 is generating excessive traffic. Limit connections per source IP. Enable geographic blocking if traffic from this region is unexpected.

09

Blacklist Status (DNSBL)

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

✓ Clean
cbl.abuseat.org
✓ Clean
zen.spamhaus.org
✓ Clean
bl.blocklist.de
✓ Clean
spam.dnsbl.sorbs.net
✓ Clean
dnsbl.dronebl.org
✓ Clean
b.barracudacentral.org
✓ Clean
bl.spamcop.net
✓ Clean
psbl.surriel.com

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

10

Threat Analysis

43.166.9.237 has been assigned a threat score of 80/100 (Critical). A score this high marks a critical threat actor. This address has demonstrated persistent, aggressive malicious behavior across multiple detection vectors.

The following attack categories were identified:

Path EnumerationRequest Flooding

📊 Threat Analysis

The address 43.166.9.237 originates from Seoul, South Korea, operating on the network of Shenzhen Tencent Computer Systems Company Limited. It was identified through automated analysis of incoming network traffic across monitored endpoints. During its 62-day observation window, we recorded 590 hostile requests from this IP — roughly 9.5 per day on average. 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 Path Enumeration combined with Request Flooding indicate a coordinated assault rather than opportunistic scanning. With 608 flagged addresses, South Korea represents a major presence in our threat database. At 80/100, this IP warrants immediate defensive action.

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

220.118.151.107 (310)175.197.250.36 (310)58.127.77.173 (310)34.64.167.219 (293)34.64.98.171 (288)View all →

🏢 Same network: AS132203

43.161.244.154 (285)101.32.194.212 (280)43.133.66.50 (280)150.109.16.200 (260)43.163.81.168 (260)View all →
12

Security Intelligence

💡 DDoS Mitigation Approaches

Distributed denial of service attacks overwhelm infrastructure with traffic volume. Effective mitigation combines always-on traffic scrubbing, anycast network distribution, rate limiting, and the ability to quickly scale absorption capacity during attacks.

💡 Data Breach Impact Assessment

The impact of data breaches extends beyond immediate financial losses. Regulatory fines, legal liability, reputational damage, and customer churn create long-term costs that often exceed the direct costs of incident response and remediation.

🔍 Check Any IP Address

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