ABUSE.MOM
THREAT REPORT

IP Threat Report
47.128.121.111

ABUSE.MOM — BEHAVE OR GET EXPOSED

Generated: 2026-05-27 22:20:47
First seen: 2026-02-18 13:00:05
Last seen: 2026-03-07 06:00:05
135

⛔ Verdict: BLOCK

This IP address has been classified as a source of malicious automated activity. Threat score: 135/100. Total malicious requests observed: 2.

BOT_UAREFERERRATIO_404BURST
01

Geolocation & Classification

IP Address
47.128.121.111
Type
Hosting
Country
🇸🇬 Singapore
City
Singapore
ISP
Amazon Technologies Inc
Organization
AWS EC2 (ap-southeast-1)
Autonomous System
AS16509 Amazon.com, Inc.
Hit Count
2
02

Detection Signatures

SignatureDescriptionPointsSeverity
UA bot: Go-http-clientKnown bot/crawler User-Agent detected+40
Foreign referer seenReferer from unrelated external domain+10
UA bot: spiderKnown bot/crawler User-Agent detected+40
404 ratio 40-60%Majority of requests returned 404 — enumeration+15
Burst: 25 req / 2sAbnormally fast request rate — automated scanning+35
Burst: 25 req / 10sAbnormally fast request rate — automated scanning+35
Σ = 175
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

2026-02-18 13:00:05
First malicious request detected
IP entered monitoring from server access logs
During observation
Multiple detection signatures triggered
UA bot: Go-http-client (+40), Foreign referer seen (+10), UA bot: spider (+40)
2026-03-07 06:00:05
Last malicious request observed
Total score reached: 135/100
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 47.128.121.111 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 47.128.121.0/24
  • 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 47.128.121.111: maintain blocklist of known malicious UA strings, require consistent UA across sessions, implement TLS fingerprinting.

🔎 Directory Scan Defense

IP 47.128.121.111 is enumerating directories. Configure fail2ban apache-404 jail after 10+ 404 errors. Disable directory listings. Normalize all 404 responses.

🌊 Flood / DDoS Mitigation

Implement limit_req_zone in nginx. Deploy CDN with DDoS protection. Configure SYN cookies and connection tracking to throttle 47.128.121.111.

07

Neighbors in 47.128.121.0/24

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
Spamhaus ZEN

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

10

Threat Analysis

47.128.121.111 has been assigned a threat score of 135/100 (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 AnomalyPath EnumerationRequest Flooding

📊 Threat Analysis

Threat intelligence analysis has linked 47.128.121.111 to malicious activity originating from Singapore, Singapore, operating on the network of Amazon Technologies Inc. The address has been under observation since its initial detection. During its 16-day observation window, we recorded 2 hostile requests from this IP — roughly 0.1 per day on average. The IP is classified as hosting/datacenter infrastructure, commonly associated with rented servers used for automated attack campaigns, botnet command-and-control, or vulnerability scanning at scale. The combination of 3 distinct attack vectors indicates a sophisticated, multi-pronged threat actor deploying automated tools that probe multiple attack surfaces simultaneously. Singapore currently accounts for 152 blocked IPs in our database, making it a significant source of malicious traffic. At 135/100, 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: 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

💡 User-Agent Analysis Techniques

Analyzing User-Agent strings reveals automated tools masquerading as legitimate browsers. Inconsistencies between claimed browser capabilities and actual behavior, impossible version combinations, and known scanner signatures help identify malicious clients.

💡 Backup and Recovery Against Ransomware

Immutable, offline backups remain the most effective defense against ransomware. The 3-2-1 rule — three copies on two media types with one offsite — combined with regular recovery testing ensures business continuity after encryption attacks.

🔍 Check Any IP Address

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