ABUSE.MOM
THREAT REPORT

IP Threat Report
40.83.73.145

ABUSE.MOM — BEHAVE OR GET EXPOSED

Generated: 2026-05-30 11:12:10
First seen: 2026-05-05 18:00:06
Last seen: 2026-05-05 20:00:06
230

⛔ Verdict: BLOCK

This IP address has been classified as a source of malicious automated activity. Threat score: 230/100. Total malicious requests observed: 4.

DANGER_PATHRATIO_404BURST
01

Geolocation & Classification

IP Address
40.83.73.145
Type
Hosting
Country
🇭🇰 Hong Kong
City
Hong Kong
ISP
Microsoft Corporation
Organization
Microsoft Azure Cloud (eastasia)
Autonomous System
AS8075 Microsoft Corporation
Hit Count
4
02

Detection Signatures

SignatureDescriptionPointsSeverity
Danger strong hits: 3High-risk paths: shells, RCE vectors, exploits+75
Danger medium hits: 23Medium-risk: admin panels, config files+60
404 ratio >= 60%Majority of requests returned 404 — enumeration+25
Burst: 13 req / 2sAbnormally fast request rate — automated scanning+35
Burst: 25 req / 10sAbnormally fast request rate — automated scanning+35
Σ = 230
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

2026-05-05 18:00:06
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: 23 (+60), 404 ratio >= 60% (+25)
2026-05-05 20:00:06
Last malicious request observed
Total score reached: 230/100
Next cycle
IP blocked — all subsequent requests denied (HTTP 403)
Added to blocklist automatically
05

Network Provider

Microsoft Corporation
AS8075 · 🇭🇰 Hong Kong
06

Recommendations

Actions taken & recommended

  • IP 40.83.73.145 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 40.83.73.145: rate-limit 404 responses per IP, deploy a honeypot 404 page, ensure no backup files are web-accessible.

🌊 Traffic Flood Defense

IP 40.83.73.145 is generating excessive traffic. Limit connections per source IP. Enable geographic blocking if traffic from this region is unexpected.

09

Blacklist Status (DNSBL)

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

✓ Clean
ix.dnsbl.manitu.net
✓ Clean
dnsbl.sorbs.net
✓ Clean
zen.spamhaus.org
✓ Clean
bl.spamcop.net
✓ 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

40.83.73.145 has been assigned a threat score of 230/100 (Critical). A score this high marks a critical threat actor. This address has demonstrated persistent, aggressive malicious behavior across multiple detection vectors.

The following attack categories were identified:

Path EnumerationRequest Flooding

📊 Threat Analysis

The address 40.83.73.145 originates from Hong Kong, Hong Kong, operating on the network of Microsoft Corporation. It was identified through automated analysis of incoming network traffic across monitored endpoints. The address has been active for 1 days in our monitoring system, producing 4 flagged requests at a rate of ~4/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. Two attack patterns were identified (Path Enumeration and Request Flooding), suggesting a semi-automated campaign that targets multiple vulnerabilities. Our records show 111 malicious IPs originating from Hong Kong, positioning it as a significant contributor to global threat activity. At 230/100, 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 Hong Kong

20.205.115.105 (280)20.24.82.132 (280)23.100.90.148 (280)65.52.160.249 (280)20.187.125.76 (280)View all →

🏢 Same network: AS8075

20.205.115.105 (280)20.24.82.132 (280)23.100.90.148 (280)65.52.160.249 (280)20.187.125.76 (280)View all →
12

Security Intelligence

💡 File Upload Vulnerabilities

Insecure file upload functionality allows attackers to upload web shells, malware, or scripts that execute on the server. Proper validation must check file content, not just extensions, and uploaded files should be stored outside the web root.

💡 IP Geolocation Accuracy Limitations

IP geolocation databases provide approximate locations with varying accuracy. City-level geolocation is typically 50-80% accurate, while country-level exceeds 95%. VPNs, proxies, and mobile networks further reduce reliability, making geolocation a useful but imperfect intelligence signal.

🔍 Check Any IP Address

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