ABUSE.MOM
THREAT REPORT

IP Threat Report
47.128.39.55

ABUSE.MOM — BEHAVE OR GET EXPOSED

Generated: 2026-05-28 16:29:53
First seen: 2026-03-25 14:00:06
Last seen: 2026-05-14 00:00:09
170

⛔ Verdict: BLOCK

This IP address has been classified as a source of malicious automated activity. Threat score: 170/100. Total malicious requests observed: 14.

BOT_UADANGER_PATHBURSTREFERERRATIO_404
01

Geolocation & Classification

IP Address
47.128.39.55
Type
Hosting
Country
🇸🇬 Singapore
City
Singapore
ISP
Amazon Technologies Inc
Organization
AWS EC2 (ap-southeast-1)
Autonomous System
AS16509 Amazon.com, Inc.
Hit Count
14
02

Detection Signatures

SignatureDescriptionPointsSeverity
UA bot: spiderKnown bot/crawler User-Agent detected+40
Danger strong hits: 2High-risk paths: shells, RCE vectors, exploits+50
Burst: 13 req / 2sAbnormally fast request rate — automated scanning+35
Burst: 14 req / 10sAbnormally fast request rate — automated scanning+35
Foreign referer seenReferer from unrelated external domain+10
404 ratio 40-60%Majority of requests returned 404 — enumeration+15
Burst: 6 req / 2sAbnormally fast request rate — automated scanning+35
Burst: 21 req / 10sAbnormally fast request rate — automated scanning+35
Burst: 9 req / 2sAbnormally fast request rate — automated scanning+35
Σ = 290
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

2026-03-25 14:00:06
First malicious request detected
IP entered monitoring from server access logs
During observation
Multiple detection signatures triggered
UA bot: spider (+40), Danger strong hits: 2 (+50), Burst: 13 req / 2s (+35)
2026-05-14 00:00:09
Last malicious request observed
Total score reached: 170/100
Next cycle
IP blocked — all subsequent requests denied (HTTP 403)
Added to blocklist automatically
05

Network Provider

Amazon Technologies Inc
AS16509 · 🇸🇬 Singapore
06

Recommendations

Actions taken & recommended

  • IP 47.128.39.55 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 47.128.39.0/24
  • 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 47.128.39.55 shows suspicious UA behavior. Block empty User-Agent requests. Implement JavaScript-based bot detection for sensitive endpoints.

🌊 Flood / DDoS Mitigation

Implement limit_req_zone in nginx. Deploy CDN with DDoS protection. Configure SYN cookies and connection tracking to throttle 47.128.39.55.

🔎 Path Enumeration Protection

Block scanning from 47.128.39.55: rate-limit 404 responses per IP, deploy a honeypot 404 page, ensure no backup files are web-accessible.

07

Neighbors in 47.128.39.0/24

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

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

10

Threat Analysis

47.128.39.55 has been assigned a threat score of 170/100 (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 47.128.39.55 has been traced to Singapore, Singapore, operating on the network of Amazon Technologies Inc. Our threat detection systems have flagged this address based on observed malicious behavior patterns. The address has been active for 49 days in our monitoring system, producing 14 flagged requests at a rate of ~0.3/day. 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 combination of 3 distinct attack vectors indicates a sophisticated, multi-pronged threat actor deploying automated tools that probe multiple attack surfaces simultaneously. With 152 flagged addresses, Singapore represents a significant presence in our threat database. A score of 170/100 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

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: AS16509

15.220.152.241 (320)18.219.106.176 (315)15.220.169.114 (280)108.136.131.13 (265)54.206.58.169 (263)View all →
12

Security Intelligence

💡 HTTP Header Analysis for Threat Detection

Examining HTTP headers beyond User-Agent reveals attack tools and automated scripts. Missing standard headers, unusual ordering, non-standard values, and inconsistencies with claimed client identity all serve as reliable detection signals.

💡 Privacy-Preserving Threat Detection

Advanced techniques enable threat detection while minimizing privacy impact. Encrypted DNS, differential privacy in analytics, and federated learning for threat models allow effective security monitoring without unnecessary surveillance of legitimate user behavior.

🔍 Check Any IP Address

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