ABUSE.MOM
THREAT REPORT

IP Threat Report
109.105.209.2

ABUSE.MOM — BEHAVE OR GET EXPOSED

Generated: 2026-05-30 07:29:59
First seen: 2026-02-17 17:25:07
Last seen: 2026-05-24 10:09:36
118

⛔ Verdict: BLOCK

This IP address has been classified as a source of malicious automated activity. Threat score: 118/100. Total malicious requests observed: 269.

BOT_UABURSTIMPORTMETHODRATIO_404REFERERUA_CHANGED
01

Geolocation & Classification

IP Address
109.105.209.2
Type
Residential
Country
🇺🇸 United States
City
Los Angeles
ISP
Zenlayer Inc
Organization
NSEC - Sistemas Informaticos, S.A
Autonomous System
AS21859 Zenlayer Inc
Hit Count
269
02

Detection Signatures

SignatureDescriptionPointsSeverity
404 ratio >= 60%Majority of requests returned 404 — enumeration+25
Burst 5/2sAbnormally fast request rate — automated scanning+35
Burst: 5 req / 2sAbnormally fast request rate — automated scanning+35
Foreign refererReferer from unrelated external domain+10
Foreign referer seenReferer from unrelated external domain+10
Imported from old blocklistBehavioral anomaly detected by automated analysis+0
POST requests presentBehavioral anomaly detected by automated analysis+8
POST seenBehavioral anomaly detected by automated analysis+8
UA bot: pythonKnown bot/crawler User-Agent detected+40
UA changedMultiple User-Agents — bot rotation technique+25
UA changed for same IPMultiple User-Agents — bot rotation technique+25
Σ = 221
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

2026-02-17 17:25:07
First malicious request detected
IP entered monitoring from server access logs
During observation
Multiple detection signatures triggered
404 ratio >= 60% (+25), Burst 5/2s (+35), Burst: 5 req / 2s (+35)
2026-05-24 10:09:36
Last malicious request observed
Total score reached: 118/100
Next cycle
IP blocked — all subsequent requests denied (HTTP 403)
Added to blocklist automatically
05

Network Provider

Zenlayer Inc
AS21859 · 🇺🇸 United States
06

Recommendations

Actions taken & recommended

  • IP 109.105.209.2 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 109.105.209.0/24
  • 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 109.105.209.2: rate-limit 404 responses per IP, deploy a honeypot 404 page, ensure no backup files are web-accessible.

🌊 Flood / DDoS Mitigation

Implement limit_req_zone in nginx. Deploy CDN with DDoS protection. Configure SYN cookies and connection tracking to throttle 109.105.209.2.

🤖 Bot Detection

Address UA spoofing from 109.105.209.2: maintain blocklist of known malicious UA strings, require consistent UA across sessions, implement TLS fingerprinting.

07

Neighbors in 109.105.209.0/24

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
psbl.surriel.com
✓ Clean
dnsbl.dronebl.org
✓ Clean
zen.spamhaus.org
✓ Clean
bl.spamcop.net
✓ Clean
bl.blocklist.de

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

10

Threat Analysis

109.105.209.2 has been assigned a threat score of 118/100 (Critical). With this rating, the IP falls into the critical severity bracket — among the most dangerous addresses in our monitoring database.

The following attack categories were identified:

Path EnumerationRequest FloodingUser-Agent Anomaly

📊 Threat Analysis

Network traffic from 109.105.209.2, located in Los Angeles, United States, operating on the network of Zenlayer Inc, has been classified as malicious by our automated threat scoring engine. The address has been active for 95 days in our monitoring system, producing 269 flagged requests at a rate of ~2.8/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 diversity of 3 separate attack methods suggests a comprehensive attack toolkit — likely an automated scanner that tests for vulnerabilities across multiple categories. With 62 flagged addresses, United States represents a notable presence in our threat database. With a threat score of 118/100, this IP is among the most dangerous addresses in our database. Immediate and complete blocking is strongly recommended.

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

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🏢 Same network: AS21859

98.98.100.164 (295)98.98.100.212 (240)162.128.185.114 (163)23.248.167.84 (145)185.226.197.62 (145)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.

💡 Brute Force Attack Mechanics

Brute force attacks systematically try username and password combinations to gain unauthorized access. Modern attacks leverage credential databases from previous breaches, testing millions of combinations using distributed botnets across multiple IP addresses.

🔍 Check Any IP Address

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