ABUSE.MOM
THREAT REPORT

IP Threat Report
104.28.159.50

ABUSE.MOM — BEHAVE OR GET EXPOSED

Generated: 2026-05-30 06:20:03
First seen: 2026-03-06 12:00:05
Last seen: 2026-04-17 20:00:06
240

⛔ Verdict: BLOCK

This IP address has been classified as a source of malicious automated activity. Threat score: 240/100. Total malicious requests observed: 7.

DANGER_PATHREFERERUA_SUSBOT_UAUA_CHANGEDBURSTREDIRECT_PROBE
01

Geolocation & Classification

IP Address
104.28.159.50
Type
Hosting
Country
🇸🇬 Singapore
City
Singapore
ISP
Cloudflare, Inc.
Organization
Cloudflare WARP
Autonomous System
AS13335 Cloudflare, Inc.
Hit Count
7
02

Detection Signatures

SignatureDescriptionPointsSeverity
Danger strong hits: 3High-risk paths: shells, RCE vectors, exploits+75
Danger medium hits: 2Medium-risk: admin panels, config files+20
Foreign referer seenReferer from unrelated external domain+10
UA suspicious (short/empty)Behavioral anomaly detected by automated analysis+15
UA bot: Go-http-clientKnown bot/crawler User-Agent detected+40
UA changed for same IPMultiple User-Agents — bot rotation technique+25
Danger strong hits: 5High-risk paths: shells, RCE vectors, exploits+100
Danger medium hits: 3Medium-risk: admin panels, config files+30
Burst: 6 req / 2sAbnormally fast request rate — automated scanning+35
Probe pattern 302->404 same pathBehavioral anomaly detected by automated analysis+20
Burst: 8 req / 2sAbnormally fast request rate — automated scanning+35
Burst: 7 req / 2sAbnormally fast request rate — automated scanning+35
Danger strong hits: 2High-risk paths: shells, RCE vectors, exploits+50
Danger medium hits: 1Medium-risk: admin panels, config files+10
Σ = 500
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

2026-03-06 12:00:05
First malicious request detected
IP entered monitoring from server access logs
During observation
Multiple detection signatures triggered
Danger strong hits: 3 (+75), Danger medium hits: 2 (+20), Foreign referer seen (+10)
2026-04-17 20:00:06
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 104.28.159.50 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 104.28.159.0/24
  • 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 104.28.159.50: maintain blocklist of known malicious UA strings, require consistent UA across sessions, implement TLS fingerprinting.

🌊 Flood / DDoS Mitigation

Implement limit_req_zone in nginx. Deploy CDN with DDoS protection. Configure SYN cookies and connection tracking to throttle 104.28.159.50.

🔎 Directory Scan Defense

IP 104.28.159.50 is enumerating directories. Configure fail2ban apache-404 jail after 10+ 404 errors. Disable directory listings. Normalize all 404 responses.

07

Neighbors in 104.28.159.0/24

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.

⛔ LISTED
Spamhaus ZEN

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

10

Threat Analysis

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

User-Agent AnomalyRequest FloodingPath Enumeration

📊 Threat Analysis

IP address 104.28.159.50 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. Over a period of 42 days, this IP generated 7 malicious requests, averaging approximately 0.2 requests per day. 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. The combination of 3 distinct attack vectors indicates a sophisticated, multi-pronged threat actor deploying automated tools that probe multiple attack surfaces simultaneously. At 240/100, this is an extremely high-risk address. All traffic should be considered hostile.

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)104.28.159.47 (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

💡 API Abuse and Enumeration

Modern attacks increasingly target APIs rather than traditional web interfaces. Attackers enumerate endpoints, test for broken authentication, and exploit excessive data exposure. API attacks are harder to detect as they mimic legitimate programmatic access patterns.

💡 Watering Hole Attack Strategy

Watering hole attacks compromise websites frequently visited by target organizations. Rather than attacking targets directly, adversaries infect trusted resources, exploiting the inherent trust users place in regularly visited sites.

🔍 Check Any IP Address

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