ABUSE.MOM
THREAT REPORT

IP Threat Report
104.28.163.234

ABUSE.MOM — BEHAVE OR GET EXPOSED

Generated: 2026-05-30 06:20:03
First seen: 2026-04-14 21:00:04
Last seen: 2026-05-16 23:00:05
240

⛔ Verdict: BLOCK

This IP address has been classified as a source of malicious automated activity. Threat score: 240/100. Total malicious requests observed: 4.

UA_CHANGEDDANGER_PATHREDIRECT_PROBEREFERERBOT_UABURST
01

Geolocation & Classification

IP Address
104.28.163.234
Type
Hosting
Country
🇸🇬 Singapore
City
Singapore
ISP
Cloudflare, Inc.
Organization
Cloudflare WARP
Autonomous System
AS13335 Cloudflare, Inc.
Hit Count
4
02

Detection Signatures

SignatureDescriptionPointsSeverity
UA changed for same IPMultiple User-Agents — bot rotation technique+25
Danger medium hits: 4Medium-risk: admin panels, config files+40
Probe pattern 302->404 same pathBehavioral anomaly detected by automated analysis+20
Foreign referer seenReferer from unrelated external domain+10
Danger medium hits: 2Medium-risk: admin panels, config files+20
UA bot: Go-http-clientKnown bot/crawler User-Agent detected+40
Danger strong hits: 1High-risk paths: shells, RCE vectors, exploits+25
Danger medium hits: 1Medium-risk: admin panels, config files+10
Danger strong hits: 5High-risk paths: shells, RCE vectors, exploits+100
Danger medium hits: 3Medium-risk: admin panels, config files+30
Burst: 7 req / 2sAbnormally fast request rate — automated scanning+35
Σ = 355
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

2026-04-14 21:00:04
First malicious request detected
IP entered monitoring from server access logs
During observation
Multiple detection signatures triggered
UA changed for same IP (+25), Danger medium hits: 4 (+40), Probe pattern 302->404 same path (+20)
2026-05-16 23:00:05
Last malicious request observed
Total score reached: 240/100
Next cycle
IP blocked — all subsequent requests denied (HTTP 403)
Added to blocklist automatically
05

Network Provider

Cloudflare, Inc.
AS13335 · 🇸🇬 Singapore
06

Recommendations

Actions taken & recommended

  • IP 104.28.163.234 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 104.28.163.0/24
  • Report abuse to the network provider via their abuse contact
  • Ensure sensitive files (.env, .git, backups) are not accessible from the web

🤖 Bot Detection

Address UA spoofing from 104.28.163.234: maintain blocklist of known malicious UA strings, require consistent UA across sessions, implement TLS fingerprinting.

🔎 Path Enumeration Protection

Block scanning from 104.28.163.234: 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 104.28.163.234.

07

Neighbors in 104.28.163.0/24

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
ix.dnsbl.manitu.net
✓ Clean
dnsbl.sorbs.net
✓ Clean
bl.spamcop.net
✓ Clean
zen.spamhaus.org
✓ Clean
psbl.surriel.com
✓ Clean
b.barracudacentral.org
✓ Clean
truncate.gbudb.net
✓ Clean
dnsbl-1.uceprotect.net

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

10

Threat Analysis

104.28.163.234 has been assigned a threat score of 240/100 (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:

User-Agent AnomalyPath EnumerationRequest Flooding

📊 Threat Analysis

IP address 104.28.163.234 has been traced to Singapore, Singapore, operating on the network of Cloudflare, Inc.. Our threat detection systems have flagged this address based on observed malicious behavior patterns. The address has been active for 32 days in our monitoring system, producing 4 flagged requests at a rate of ~0.1/day. Operating from datacenter infrastructure, this IP is typical of addresses used in organized attack operations. Cloud and VPS providers are commonly exploited as launching platforms for automated scanning. The diversity of 3 separate attack methods suggests a comprehensive attack toolkit — likely an automated scanner that tests for vulnerabilities across multiple categories. A score of 240/100 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 Singapore

104.28.156.135 (268)104.28.159.48 (268)104.28.156.151 (268)104.28.156.138 (240)104.28.159.50 (240)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

💡 TLS Fingerprinting (JA3/JA4)

TLS fingerprinting creates unique identifiers based on how clients negotiate encrypted connections. The JA3 and JA4 methods generate hashes from TLS ClientHello parameters, enabling identification of specific tools and malware regardless of IP address changes.

💡 Zero Trust Architecture Principles

Zero trust eliminates implicit trust based on network location. Every access request is verified regardless of source, minimizing the impact of compromised credentials or network breaches. Implementation requires strong identity verification and continuous authorization.

🔍 Check Any IP Address

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