ABUSE.MOM
THREAT REPORT

IP Threat Report
104.28.217.140

ABUSE.MOM — BEHAVE OR GET EXPOSED

Generated: 2026-09-13 01:26:38
First seen: 2026-08-29 10:47:21
Last seen: 2026-09-06 01:07:45
238

⛔ Verdict: BLOCK

This IP address has been classified as a source of malicious automated activity. Threat score: 238/100. Total malicious requests observed: 449.

BURSTDANGER_PATHMETHODRATIO_404REFERERUA_CHANGED
01

Geolocation & Classification

IP Address
104.28.217.140
Type
VPN
Country
🇳🇱 Netherlands
City
Utrecht
ISP
Cloudflare, Inc.
Organization
Cloudflare WARP
Autonomous System
AS13335 Cloudflare, Inc.
Hit Count
449
02

Detection Signatures

SignatureDescriptionPointsSeverity
404 ratio 40-60%Majority of requests returned 404 — enumeration+15
404 ratio >= 60%Majority of requests returned 404 — enumeration+25
Burst 20/2sAbnormally fast request rate — automated scanning+35
Burst 21/2sAbnormally fast request rate — automated scanning+35
Burst 23/2sAbnormally fast request rate — automated scanning+35
Burst 28/2sAbnormally fast request rate — automated scanning+35
Burst 35/2sAbnormally fast request rate — automated scanning+35
Burst 46/10sAbnormally fast request rate — automated scanning+35
Burst 56/10sAbnormally fast request rate — automated scanning+35
Burst 60/10sAbnormally fast request rate — automated scanning+35
Burst 65/10sAbnormally fast request rate — automated scanning+35
Burst 69/10sAbnormally fast request rate — automated scanning+35
Burst 76/10sAbnormally fast request rate — automated scanning+35
Danger strong hits: 15High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 25High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 28High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 29High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 30High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 40High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 9High-risk paths: shells, RCE vectors, exploits+100
Foreign refererReferer from unrelated external domain+10
POST seenBehavioral anomaly detected by automated analysis+8
UA changedMultiple User-Agents — bot rotation technique+25
Σ = 1168
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 10:47:21
First malicious request detected
IP entered monitoring from server access logs
During observation
Multiple detection signatures triggered
404 ratio 40-60% (+15), 404 ratio >= 60% (+25), Burst 20/2s (+35)
2026-09-06 01:07:45
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

Cloudflare, Inc.
AS13335 · 🇳🇱 Netherlands
06

Recommendations

Actions taken & recommended

  • IP 104.28.217.140 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 104.28.217.0/24
  • 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 104.28.217.140: rate-limit 404 responses per IP, deploy a honeypot 404 page, ensure no backup files are web-accessible.

🌊 Traffic Flood Defense

IP 104.28.217.140 is generating excessive traffic. Limit connections per source IP. Enable geographic blocking if traffic from this region is unexpected.

🤖 Bot Detection

Address UA spoofing from 104.28.217.140: maintain blocklist of known malicious UA strings, require consistent UA across sessions, implement TLS fingerprinting.

07

Neighbors in 104.28.217.0/24

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

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

10

Threat Analysis

104.28.217.140 has been assigned a threat score of 238/100 (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

Our monitoring infrastructure has identified 104.28.217.140, geolocated to Utrecht, Netherlands, operating on the network of Cloudflare, Inc., as a source of suspicious network activity. Our sensors captured 449 malicious requests from this address across a 7-day span, reflecting a sustained attack cadence of ~64.1 requests per day. This IP is identified as a VPN or proxy endpoint, commonly used to mask the true origin of attack traffic and bypass geographic or reputation-based blocking. With 3 different attack patterns detected, this IP exhibits behavior characteristic of advanced automated scanning frameworks. With 13 flagged addresses, Netherlands represents a notable presence in our threat database. With a threat score of 238/100, this IP is among the most dangerous addresses in our database. Immediate and complete blocking is strongly recommended.

This IP is associated with a VPN or proxy service. Attackers frequently route their traffic through anonymizing services to obscure their true location. This makes attribution more challenging but the malicious behavior patterns remain detectable.

11

Related Threats

🇳🇱 Top threats from Netherlands

104.28.217.137 (298)104.28.249.139 (268)104.28.217.139 (253)104.28.217.138 (238)104.28.249.138 (238)View all →

🏢 Same network: AS13335

104.28.192.67 (340)104.28.240.58 (305)104.28.205.84 (298)104.28.217.137 (298)104.28.234.181 (288)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.

💡 WordPress-Specific Attack Vectors

WordPress sites face constant automated attacks targeting xmlrpc.php for brute force amplification, wp-login.php for credential theft, and vulnerable plugins for remote code execution. Over 90% of CMS-based attacks specifically target WordPress installations.

🔍 Check Any IP Address

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