ABUSE.MOM
THREAT REPORT

IP Threat Report
43.203.143.239

ABUSE.MOM — BEHAVE OR GET EXPOSED

Generated: 2026-07-30 01:51:22
First seen: 2026-07-26 06:02:14
Last seen: 2026-07-30 01:11:24
238

⛔ Verdict: BLOCK

This IP address has been classified as a source of malicious automated activity. Threat score: 238/100. Total malicious requests observed: 139.

BURSTDANGER_PATHMETHOD
01

Geolocation & Classification

IP Address
43.203.143.239
Type
Hosting
Country
🇰🇷 South Korea
City
Seoul
ISP
Amazon.com, Inc.
Organization
AWS EC2 (ap-northeast-2)
Autonomous System
AS16509 Amazon.com, Inc.
Hit Count
139
02

Detection Signatures

SignatureDescriptionPointsSeverity
Burst 11/2sAbnormally fast request rate — automated scanning+35
Burst 40/10sAbnormally fast request rate — automated scanning+35
Danger medium hits: 41Medium-risk: admin panels, config files+60
Danger medium hits: 80Medium-risk: admin panels, config files+60
Danger strong hits: 668High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 740High-risk paths: shells, RCE vectors, exploits+100
POST seenBehavioral anomaly detected by automated analysis+8
Σ = 398
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

2026-07-26 06:02:14
First malicious request detected
IP entered monitoring from server access logs
During observation
Multiple detection signatures triggered
Burst 11/2s (+35), Burst 40/10s (+35), Danger medium hits: 41 (+60)
2026-07-30 01:11:24
Last malicious request observed
Total score reached: 238/100
Next cycle
IP blocked — all subsequent requests denied (HTTP 403)
Added to blocklist automatically
05

Network Provider

Amazon.com, Inc.
AS16509 · 🇰🇷 South Korea
06

Recommendations

Actions taken & recommended

  • IP 43.203.143.239 is blocked at application level (HTTP 403)
  • Consider blocking at firewall level (iptables/CSF) to reduce server load
  • Other malicious IPs detected in the same /24 subnet — consider blocking 43.203.143.0/24
  • 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 43.203.143.239 is generating excessive traffic. Limit connections per source IP. Enable geographic blocking if traffic from this region is unexpected.

07

Neighbors in 43.203.143.0/24

Other blocked IPs from the same /24 subnet — indicates systematic abuse from this network range.

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

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

10

Threat Analysis

43.203.143.239 has been assigned a threat score of 238/100 (Critical). This is a critical-level threat. Systems administrators should treat this IP as hostile and block all inbound connections without exception.

The following attack categories were identified:

Request Flooding

📊 Threat Analysis

43.203.143.239 is registered in Seoul, South Korea, operating on the network of Amazon.com, Inc.. This IP first appeared in our threat feeds after triggering multiple behavioral detection signatures. The address has been active for 3 days in our monitoring system, producing 139 flagged requests at a rate of ~46.3/day. This address belongs to a datacenter or cloud hosting provider. Hosting IPs are frequently leveraged by threat actors who rent cheap VPS instances specifically for conducting attacks. The IP is engaged in request flooding, sending traffic at rates designed to exhaust server capacity. With 102 flagged addresses, South Korea represents a significant presence in our threat database. A score of 238/100 places this address in the top tier of severity. Block and investigate any historical connections.

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

20.214.136.247 (280)20.214.157.214 (280)20.194.25.241 (280)20.196.195.121 (280)20.214.155.242 (280)View all →

🏢 Same network: AS16509

35.180.172.183 (298)3.129.218.216 (288)18.191.74.68 (288)34.244.9.175 (288)3.72.250.64 (280)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.

💡 IoT Device Compromise Patterns

Internet of Things devices are prime targets for botnet recruitment due to weak default credentials, infrequent updates, and always-on connectivity. Compromised IoT devices generate persistent scanning and attack traffic without their owners knowledge.

🔍 Check Any IP Address

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