ABUSE.MOM
THREAT REPORT

IP Threat Report
183.96.249.21

ABUSE.MOM — BEHAVE OR GET EXPOSED

Generated: 2026-09-13 02:24:56
First seen: 2026-09-01 11:52:51
Last seen: 2026-09-06 01:03:06
130

⛔ Verdict: BLOCK

This IP address has been classified as a source of malicious automated activity. Threat score: 130/100. Total malicious requests observed: 113.

DANGER_PATHRATIO_404REDIRECT_PROBEREFERERUA_CHANGED
01

Geolocation & Classification

IP Address
183.96.249.21
Type
Residential
Country
🇰🇷 South Korea
City
Mapo-gu
ISP
Korea Telecom
Organization
Unknown
Autonomous System
AS4766 Korea Telecom
Hit Count
113
02

Detection Signatures

SignatureDescriptionPointsSeverity
404 ratio 40-60%Majority of requests returned 404 — enumeration+15
Danger medium hits: 10Medium-risk: admin panels, config files+60
Danger medium hits: 25Medium-risk: admin panels, config files+60
Danger medium hits: 26Medium-risk: admin panels, config files+60
Danger medium hits: 27Medium-risk: admin panels, config files+60
Danger medium hits: 5Medium-risk: admin panels, config files+50
Foreign refererReferer from unrelated external domain+10
Probe 302→404Behavioral anomaly detected by automated analysis+20
UA changedMultiple User-Agents — bot rotation technique+25
Σ = 360
03

Observed Activity

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

[redacted]
GET
/
200
Requests shown: 1 · HTTP 404: 0 · Dangerous patterns: 0

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

04

Timeline

2026-09-01 11:52:51
First malicious request detected
IP entered monitoring from server access logs
During observation
Multiple detection signatures triggered
404 ratio 40-60% (+15), Danger medium hits: 10 (+60), Danger medium hits: 25 (+60)
2026-09-06 01:03:06
Last malicious request observed
Total score reached: 130/100
Next cycle
IP blocked — all subsequent requests denied (HTTP 403)
Added to blocklist automatically
05

Network Provider

Korea Telecom
AS4766 · 🇰🇷 South Korea
06

Recommendations

Actions taken & recommended

  • IP 183.96.249.21 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 183.96.249.0/24
  • Report abuse to the network provider via their abuse contact
  • Ensure sensitive files (.env, .git, backups) are not accessible from the web

🔎 Path Enumeration Protection

Block scanning from 183.96.249.21: rate-limit 404 responses per IP, deploy a honeypot 404 page, ensure no backup files are web-accessible.

🤖 User-Agent Anomaly Defense

IP 183.96.249.21 shows suspicious UA behavior. Block empty User-Agent requests. Implement JavaScript-based bot detection for sensitive endpoints.

07

Neighbors in 183.96.249.0/24

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

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

10

Threat Analysis

183.96.249.21 has been assigned a threat score of 130/100 (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 EnumerationUser-Agent Anomaly

📊 Threat Analysis

Our monitoring infrastructure has identified 183.96.249.21, geolocated to Mapo-gu, South Korea, operating on the network of Korea Telecom, as a source of suspicious network activity. Our sensors captured 113 malicious requests from this address across a 4-day span, reflecting a sustained attack cadence of ~28.3 requests per day. This residential IP is likely a compromised consumer device. Home routers and IoT equipment with default credentials are prime targets for botnet operators. The dual attack vectors of Path Enumeration combined with User-Agent Anomaly indicate a coordinated assault rather than opportunistic scanning. With 129 flagged addresses, South Korea represents a significant presence in our threat database. A score of 130/100 places this address in the top tier of severity. Block and investigate any historical connections.

This IP is classified as residential, suggesting it may belong to a compromised home device, IoT botnet member, or an infected personal computer. Residential IPs involved in attacks often indicate malware infection without the owner's knowledge.

11

Related Threats

🇰🇷 Top threats from South Korea

58.127.77.173 (300)34.64.98.171 (288)34.22.101.117 (288)34.158.207.209 (288)8.230.30.47 (288)View all →

🏢 Same network: AS4766

183.111.125.26 (205)210.114.19.160 (205)211.57.200.119 (145)14.49.162.140 (140)222.116.44.4 (140)View all →
12

Security Intelligence

💡 SQL Injection Campaigns

SQL injection remains one of the most common web attack vectors. Attackers inject malicious SQL code through input fields to extract database contents, modify data, or gain administrative access. Automated scanners test for SQLi vulnerabilities at massive scale.

💡 Race Condition Vulnerabilities

Race conditions occur when application behavior depends on the timing of concurrent operations. Attackers exploit these timing windows to bypass limits, duplicate transactions, or escalate privileges by sending carefully timed parallel requests.

🔍 Check Any IP Address

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