ABUSE.MOM
THREAT REPORT

IP Threat Report
104.28.219.191

ABUSE.MOM — BEHAVE OR GET EXPOSED

Generated: 2026-07-30 01:42:39
First seen: 2026-07-17 01:52:09
Last seen: 2026-07-30 01:40:13
220

⛔ Verdict: BLOCK

This IP address has been classified as a source of malicious automated activity. Threat score: 220/100. Total malicious requests observed: 532.

BURSTDANGER_PATHRATIO_404UA_CHANGED
01

Geolocation & Classification

IP Address
104.28.219.191
Type
VPN
Country
🇺🇸 United States
City
Kansas City
ISP
Cloudflare, Inc.
Organization
Cloudflare WARP
Autonomous System
AS13335 Cloudflare, Inc.
Hit Count
532
02

Detection Signatures

SignatureDescriptionPointsSeverity
404 ratio >= 60%Majority of requests returned 404 — enumeration+25
Burst 10/10sAbnormally fast request rate — automated scanning+35
Burst 10/2sAbnormally fast request rate — automated scanning+35
Burst 11/10sAbnormally fast request rate — automated scanning+35
Burst 11/2sAbnormally fast request rate — automated scanning+35
Burst 36/2sAbnormally fast request rate — automated scanning+35
Burst 40/10sAbnormally fast request rate — automated scanning+35
Burst 40/2sAbnormally fast request rate — automated scanning+35
Danger strong hits: 11High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 3High-risk paths: shells, RCE vectors, exploits+75
UA changedMultiple User-Agents — bot rotation technique+25
Σ = 470
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

2026-07-17 01:52:09
First malicious request detected
IP entered monitoring from server access logs
During observation
Multiple detection signatures triggered
404 ratio >= 60% (+25), Burst 10/10s (+35), Burst 10/2s (+35)
2026-07-30 01:40:13
Last malicious request observed
Total score reached: 220/100
Next cycle
IP blocked — all subsequent requests denied (HTTP 403)
Added to blocklist automatically
05

Network Provider

Cloudflare, Inc.
AS13335 · 🇺🇸 United States
06

Recommendations

Actions taken & recommended

  • IP 104.28.219.191 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 104.28.219.0/24
  • Report abuse to the network provider via their abuse contact
  • Ensure sensitive files (.env, .git, backups) are not accessible from the web

🔎 Directory Scan Defense

IP 104.28.219.191 is enumerating directories. Configure fail2ban apache-404 jail after 10+ 404 errors. Disable directory listings. Normalize all 404 responses.

🌊 Flood / DDoS Mitigation

Implement limit_req_zone in nginx. Deploy CDN with DDoS protection. Configure SYN cookies and connection tracking to throttle 104.28.219.191.

🤖 User-Agent Anomaly Defense

IP 104.28.219.191 shows suspicious UA behavior. Block empty User-Agent requests. Implement JavaScript-based bot detection for sensitive endpoints.

07

Neighbors in 104.28.219.0/24

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

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

10

Threat Analysis

104.28.219.191 has been assigned a threat score of 220/100 (Critical). This represents a critical risk level. Our detection systems have flagged multiple high-confidence indicators of malicious intent from this address.

The following attack categories were identified:

Path EnumerationRequest FloodingUser-Agent Anomaly

📊 Threat Analysis

Our monitoring infrastructure has identified 104.28.219.191, geolocated to Kansas City, United States, operating on the network of Cloudflare, Inc., as a source of suspicious network activity. During its 12-day observation window, we recorded 532 hostile requests from this IP — roughly 44.3 per day on average. Classified as a VPN or proxy server, this IP serves as an anonymization layer. While VPNs have legitimate uses, this address has been observed routing clearly malicious traffic. The combination of 3 distinct attack vectors indicates a sophisticated, multi-pronged threat actor deploying automated tools that probe multiple attack surfaces simultaneously. With 137 flagged addresses, United States represents a significant presence in our threat database. At 220/100, this is an extremely high-risk address. All traffic should be considered hostile.

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 United States

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🏢 Same network: AS13335

104.28.217.137 (298)104.28.236.175 (280)104.28.205.83 (268)104.28.236.176 (253)104.28.217.139 (253)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.

💡 Machine Learning in Threat Detection

Machine learning models analyze vast amounts of network traffic to identify attack patterns invisible to rule-based systems. Supervised models classify known attack types while unsupervised models detect anomalies that may indicate novel threats.

🔍 Check Any IP Address

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