ABUSE.MOM
THREAT REPORT

IP Threat Report
104.28.156.151

ABUSE.MOM — BEHAVE OR GET EXPOSED

Generated: 2026-05-30 06:22:17
First seen: 2026-03-10 17:00:12
Last seen: 2026-05-30 06:17:29
268

⛔ Verdict: BLOCK

This IP address has been classified as a source of malicious automated activity. Threat score: 268/100. Total malicious requests observed: 474.

BURSTDANGER_PATHMETHODRATIO_404REFERERUA_CHANGEDUA_SUS
01

Geolocation & Classification

IP Address
104.28.156.151
Type
Hosting
Country
🇸🇬 Singapore
City
Singapore
ISP
Cloudflare, Inc.
Organization
Cloudflare WARP
Autonomous System
AS13335 Cloudflare, Inc.
Hit Count
474
02

Detection Signatures

SignatureDescriptionPointsSeverity
404 ratio 40-60%Majority of requests returned 404 — enumeration+15
Burst: 12 req / 10sAbnormally fast request rate — automated scanning+35
Burst: 7 req / 2sAbnormally fast request rate — automated scanning+35
Danger medium hits: 1Medium-risk: admin panels, config files+10
Danger medium hits: 2Medium-risk: admin panels, config files+20
Danger medium hits: 4Medium-risk: admin panels, config files+40
Danger strong hits: 2High-risk paths: shells, RCE vectors, exploits+50
Danger strong hits: 7High-risk paths: shells, RCE vectors, exploits+100
Foreign referer seenReferer from unrelated external domain+10
POST requests presentBehavioral anomaly detected by automated analysis+8
POST seenBehavioral anomaly detected by automated analysis+8
UA changedMultiple User-Agents — bot rotation technique+25
UA changed for same IPMultiple User-Agents — bot rotation technique+25
UA suspicious (short/empty)Behavioral anomaly detected by automated analysis+15
Σ = 396
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

2026-03-10 17:00:12
First malicious request detected
IP entered monitoring from server access logs
During observation
Multiple detection signatures triggered
404 ratio 40-60% (+15), Burst: 12 req / 10s (+35), Burst: 7 req / 2s (+35)
2026-05-30 06:17:29
Last malicious request observed
Total score reached: 268/100
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 104.28.156.151 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 104.28.156.0/24
  • 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 104.28.156.151 is enumerating directories. Configure fail2ban apache-404 jail after 10+ 404 errors. Disable directory listings. Normalize all 404 responses.

🌊 Traffic Flood Defense

IP 104.28.156.151 is generating excessive traffic. Limit connections per source IP. Enable geographic blocking if traffic from this region is unexpected.

🤖 User-Agent Anomaly Defense

IP 104.28.156.151 shows suspicious UA behavior. Block empty User-Agent requests. Implement JavaScript-based bot detection for sensitive endpoints.

07

Neighbors in 104.28.156.0/24

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

104.28.156.151 has been assigned a threat score of 268/100 (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

Network traffic from 104.28.156.151, located in Singapore, Singapore, operating on the network of Cloudflare, Inc., has been classified as malicious by our automated threat scoring engine. During its 80-day observation window, we recorded 474 hostile requests from this IP — roughly 5.9 per day on average. This address belongs to a datacenter or cloud hosting provider. Hosting IPs are frequently leveraged by threat actors who rent cheap VPS instances specifically for conducting attacks. The diversity of 3 separate attack methods suggests a comprehensive attack toolkit — likely an automated scanner that tests for vulnerabilities across multiple categories. Our records show 208 malicious IPs originating from Singapore, positioning it as a significant contributor to global threat activity. At 268/100, 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

85.203.23.12 (340)85.203.23.31 (330)84.17.39.195 (325)192.166.246.30 (325)85.203.21.101 (320)View all →

🏢 Same network: AS13335

104.28.156.135 (268)104.28.159.48 (268)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.

💡 Dark Web Intelligence Gathering

Monitoring dark web forums and marketplaces provides advance warning of planned attacks, leaked credentials, and compromised data. This intelligence feeds into proactive defense measures before attacks reach their targets.

🔍 Check Any IP Address

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