ABUSE.MOM
THREAT REPORT

IP Threat Report
175.125.21.97

ABUSE.MOM — BEHAVE OR GET EXPOSED

Generated: 2026-10-26 10:39:25
First seen: 2026-10-10 03:45:07
Last seen: 2026-10-11 01:06:50
70

⛔ Verdict: BLOCK

This IP address has been classified as a source of malicious automated activity. Threat score: 70/100. Total malicious requests observed: 14.

BURSTREFERERUA_CHANGED
01

Geolocation & Classification

IP Address
175.125.21.97
Type
Residential
Country
🇰🇷 South Korea
City
Seoul
ISP
SK Broadband Co Ltd
Organization
SK Broadband Co Ltd
Autonomous System
AS9318 SK Broadband Co Ltd
Hit Count
14
02

Detection Signatures

SignatureDescriptionPointsSeverity
Burst 5/2sAbnormally fast request rate — automated scanning+35
Foreign refererReferer from unrelated external domain+10
UA changedMultiple User-Agents — bot rotation technique+25
Σ = 70
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

2026-10-10 03:45:07
First malicious request detected
IP entered monitoring from server access logs
During observation
Multiple detection signatures triggered
Burst 5/2s (+35), Foreign referer (+10), UA changed (+25)
2026-10-11 01:06:50
Last malicious request observed
Total score reached: 70/100
Next cycle
IP blocked — all subsequent requests denied (HTTP 403)
Added to blocklist automatically
05

Network Provider

SK Broadband Co Ltd
AS9318 · 🇰🇷 South Korea

We have detected 23 malicious IPs from this autonomous system.

View all IPs from AS9318 →
06

Recommendations

Actions taken & recommended

  • IP 175.125.21.97 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 175.125.21.97 is generating excessive traffic. Limit connections per source IP. Enable geographic blocking if traffic from this region is unexpected.

🤖 User-Agent Anomaly Defense

IP 175.125.21.97 shows suspicious UA behavior. Block empty User-Agent requests. Implement JavaScript-based bot detection for sensitive endpoints.

09

Blacklist Status (DNSBL)

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

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

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

10

Threat Analysis

175.125.21.97 has been assigned a threat score of 70/100 (High). This score indicates high threat severity. The IP has shown clear patterns of malicious behavior that warrant immediate defensive measures.

The following attack categories were identified:

Request FloodingUser-Agent Anomaly

📊 Threat Analysis

Network traffic from 175.125.21.97, located in Seoul, South Korea, operating on the network of SK Broadband Co Ltd, has been classified as malicious by our automated threat scoring engine. Our sensors captured 14 malicious requests from this address across a 1-day span, reflecting a sustained attack cadence of ~14 requests per day. This is a residential IP address, suggesting a compromised home device such as a router, smart appliance, or infected workstation participating in a botnet. Two attack patterns were identified (Request Flooding and User-Agent Anomaly), suggesting a semi-automated campaign that targets multiple vulnerabilities. With 602 flagged addresses, South Korea represents a major presence in our threat database. At 70/100, this IP warrants immediate defensive action.

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

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: AS9318

58.127.77.173 (310)110.10.174.68 (275)118.219.255.169 (220)1.234.27.159 (220)114.202.253.7 (200)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.

💡 Network Flow Analysis

Analyzing network flows (NetFlow, sFlow, IPFIX) provides visibility into traffic patterns without inspecting packet contents. Flow data reveals scanning activity, data exfiltration, lateral movement, and command-and-control channels at scale.

🔍 Check Any IP Address

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