ABUSE.MOM
THREAT REPORT

IP Threat Report
104.23.221.40

ABUSE.MOM — BEHAVE OR GET EXPOSED

Generated: 2026-05-30 06:41:15
First seen: 2026-02-17 17:25:07
Last seen: 2026-05-30 06:26:58
175

⛔ Verdict: BLOCK

This IP address has been classified as a source of malicious automated activity. Threat score: 175/100. Total malicious requests observed: 609.

DANGER_PATHIMPORTUA_CHANGED
01

Geolocation & Classification

IP Address
104.23.221.40
Type
Hosting
Country
🇸🇪 Sweden
City
Stockholm
ISP
Cloudflare, Inc.
Organization
Cloudflare WARP
Autonomous System
AS13335 Cloudflare, Inc.
Hit Count
609
02

Detection Signatures

SignatureDescriptionPointsSeverity
Danger medium hits: 1Medium-risk: admin panels, config files+10
Danger medium hits: 11Medium-risk: admin panels, config files+60
Danger medium hits: 12Medium-risk: admin panels, config files+60
Danger medium hits: 13Medium-risk: admin panels, config files+60
Danger medium hits: 14Medium-risk: admin panels, config files+60
Danger medium hits: 15Medium-risk: admin panels, config files+60
Danger medium hits: 16Medium-risk: admin panels, config files+60
Danger medium hits: 17Medium-risk: admin panels, config files+60
Danger medium hits: 18Medium-risk: admin panels, config files+60
Danger medium hits: 19Medium-risk: admin panels, config files+60
Danger medium hits: 2Medium-risk: admin panels, config files+20
Danger medium hits: 20Medium-risk: admin panels, config files+60
Danger medium hits: 21Medium-risk: admin panels, config files+60
Danger medium hits: 22Medium-risk: admin panels, config files+60
Danger medium hits: 24Medium-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: 28Medium-risk: admin panels, config files+60
Danger medium hits: 29Medium-risk: admin panels, config files+60
Danger medium hits: 3Medium-risk: admin panels, config files+30
Danger medium hits: 30Medium-risk: admin panels, config files+60
Danger medium hits: 31Medium-risk: admin panels, config files+60
Danger medium hits: 33Medium-risk: admin panels, config files+60
Danger medium hits: 34Medium-risk: admin panels, config files+60
Danger medium hits: 4Medium-risk: admin panels, config files+40
Danger medium hits: 5Medium-risk: admin panels, config files+50
Danger medium hits: 7Medium-risk: admin panels, config files+60
Danger medium hits: 9Medium-risk: admin panels, config files+60
Danger strong hits: 1High-risk paths: shells, RCE vectors, exploits+25
Danger strong hits: 11High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 12High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 13High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 14High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 15High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 16High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 17High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 18High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 19High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 2High-risk paths: shells, RCE vectors, exploits+50
Danger strong hits: 20High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 21High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 22High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 24High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 25High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 26High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 27High-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: 3High-risk paths: shells, RCE vectors, exploits+75
Danger strong hits: 30High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 31High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 33High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 34High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 4High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 5High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 7High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 9High-risk paths: shells, RCE vectors, exploits+100
Imported from old blocklistBehavioral anomaly detected by automated analysis+0
UA changed for same IPMultiple User-Agents — bot rotation technique+25
Σ = 4365
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

2026-02-17 17:25:07
First malicious request detected
IP entered monitoring from server access logs
During observation
Multiple detection signatures triggered
Danger medium hits: 1 (+10), Danger medium hits: 11 (+60), Danger medium hits: 12 (+60)
2026-05-30 06:26:58
Last malicious request observed
Total score reached: 175/100
Next cycle
IP blocked — all subsequent requests denied (HTTP 403)
Added to blocklist automatically
05

Network Provider

Cloudflare, Inc.
AS13335 · 🇸🇪 Sweden
06

Recommendations

Actions taken & recommended

  • IP 104.23.221.40 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 104.23.221.0/24
  • Report abuse to the network provider via their abuse contact
  • Ensure sensitive files (.env, .git, backups) are not accessible from the web

🤖 User-Agent Anomaly Defense

IP 104.23.221.40 shows suspicious UA behavior. Block empty User-Agent requests. Implement JavaScript-based bot detection for sensitive endpoints.

07

Neighbors in 104.23.221.0/24

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

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

10

Threat Analysis

104.23.221.40 has been assigned a threat score of 175/100 (Critical). This places it in the critical threat category. Immediate blocking is strongly advised across all network perimeters.

The following attack categories were identified:

User-Agent Anomaly

📊 Threat Analysis

The address 104.23.221.40 originates from Stockholm, Sweden, operating on the network of Cloudflare, Inc.. It was identified through automated analysis of incoming network traffic across monitored endpoints. During its 101-day observation window, we recorded 609 hostile requests from this IP — roughly 6 per day on average. Classified as a hosting IP, this address likely runs on a rented server or cloud instance. Attackers prefer datacenter IPs for their high bandwidth and disposable nature. Detected suspicious User-Agent anomalies including empty, forged, or rapidly rotating UA strings — characteristic of automated scanning tools. With 121 flagged addresses, Sweden represents a significant presence in our threat database. A score of 175/100 places this address in the top tier of severity. Block and investigate any historical connections.

This IP belongs to a hosting or data center provider. Malicious traffic from hosting infrastructure often originates from compromised VPS instances, rented servers used for scanning campaigns, or abused free-tier cloud accounts. Hosting providers typically respond to abuse reports within 24-72 hours.

11

Related Threats

🇸🇪 Top threats from Sweden

74.241.249.229 (340)91.92.42.120 (300)91.92.42.63 (300)51.107.182.56 (280)20.91.197.150 (280)View all →

🏢 Same network: AS13335

104.28.246.115 (350)104.28.246.113 (340)104.28.246.116 (340)104.28.235.58 (340)104.28.246.122 (340)View all →
12

Security Intelligence

💡 HTTP Request Smuggling

Request smuggling exploits differences in how front-end and back-end servers parse HTTP requests. This technique can bypass security controls, poison web caches, and hijack other users sessions by desynchronizing request boundaries.

💡 Digital Forensics Fundamentals

Digital forensics preserves and analyzes electronic evidence following attacks. Proper chain of custody, forensic imaging, timeline reconstruction, and artifact analysis are essential for understanding attack scope, attribution, and preventing recurrence.

🔍 Check Any IP Address

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