ABUSE.MOM
THREAT REPORT

IP Threat Report
43.107.53.143

ABUSE.MOM — BEHAVE OR GET EXPOSED

Generated: 2026-07-30 01:18:40
First seen: 2026-07-14 22:49:37
Last seen: 2026-07-19 04:07:47
135

⛔ Verdict: BLOCK

This IP address has been classified as a source of malicious automated activity. Threat score: 135/100. Total malicious requests observed: 287.

DANGER_PATHRATIO_404REDIRECT_PROBE
01

Geolocation & Classification

IP Address
43.107.53.143
Type
Hosting
Country
🇸🇬 Singapore
City
Singapore
ISP
Alibaba (US) Technology Co., Ltd.
Organization
Alibaba.com LLC
Autonomous System
AS45102 Alibaba (US) Technology Co., Ltd.
Hit Count
287
02

Detection Signatures

SignatureDescriptionPointsSeverity
404 ratio 40-60%Majority of requests returned 404 — enumeration+15
Danger strong hits: 10High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 12High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 14High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 16High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 18High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 2High-risk paths: shells, RCE vectors, exploits+50
Danger strong hits: 20High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 23High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 25High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 27High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 31High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 4High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 6High-risk paths: shells, RCE vectors, exploits+100
Probe 302→404Behavioral anomaly detected by automated analysis+20
Σ = 1285
03

Observed Activity

Reconstructed HTTP requests from server access logs. Target domains redacted for security.

[redacted]
GET
/
200
Requests shown: 1 · HTTP 404: 0 · Dangerous patterns: 0

* Typical request patterns for detected signatures. Actual target domains are redacted.

04

Timeline

2026-07-14 22:49:37
First malicious request detected
IP entered monitoring from server access logs
During observation
Multiple detection signatures triggered
404 ratio 40-60% (+15), Danger strong hits: 10 (+100), Danger strong hits: 12 (+100)
2026-07-19 04:07:47
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

Alibaba (US) Technology Co., Ltd.
AS45102 · 🇸🇬 Singapore
06

Recommendations

Actions taken & recommended

  • IP 43.107.53.143 is blocked at application level (HTTP 403)
  • Consider blocking at firewall level (iptables/CSF) to reduce server load
  • Report abuse to the network provider via their abuse contact
  • Ensure sensitive files (.env, .git, backups) are not accessible from the web

🔎 Path Enumeration Protection

Block scanning from 43.107.53.143: rate-limit 404 responses per IP, deploy a honeypot 404 page, ensure no backup files are web-accessible.

09

Blacklist Status (DNSBL)

This IP was checked against major DNS-based blacklists used by mail servers and firewalls worldwide.

✓ Clean
cbl.abuseat.org
✓ Clean
bl.blocklist.de
✓ Clean
b.barracudacentral.org
✓ Clean
psbl.surriel.com
✓ Clean
spam.dnsbl.sorbs.net
✓ Clean
zen.spamhaus.org
✓ Clean
dnsbl.dronebl.org
✓ Clean
bl.spamcop.net

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

10

Threat Analysis

43.107.53.143 has been assigned a threat score of 135/100 (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:

Path Enumeration

📊 Threat Analysis

43.107.53.143 is registered in Singapore, Singapore, operating on the network of Alibaba (US) Technology Co., Ltd.. This IP first appeared in our threat feeds after triggering multiple behavioral detection signatures. Our sensors captured 287 malicious requests from this address across a 4-day span, reflecting a sustained attack cadence of ~71.8 requests per 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 IP exhibits directory enumeration behavior, systematically requesting non-existent paths to discover hidden files and misconfigured resources. Singapore currently accounts for 197 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)103.167.150.231 (340)62.146.238.136 (340)85.203.23.31 (330)192.166.246.30 (325)View all →

🏢 Same network: AS45102

47.84.135.130 (223)47.83.215.78 (215)47.250.40.154 (205)47.238.127.5 (180)47.82.10.20 (160)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.

💡 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.

🔍 Check Any IP Address

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