ABUSE.MOM
THREAT REPORT

IP Threat Report
8.138.207.3

ABUSE.MOM — BEHAVE OR GET EXPOSED

Generated: 2026-09-13 01:27:34
First seen: 2026-09-06 20:16:07
Last seen: 2026-09-13 01:14:56
175

⛔ Verdict: BLOCK

This IP address has been classified as a source of malicious automated activity. Threat score: 175/100. Total malicious requests observed: 173.

BOT_UADANGER_PATHRATIO_404REDIRECT_PROBE
01

Geolocation & Classification

IP Address
8.138.207.3
Type
Hosting
Country
🇨🇳 China
City
Guangzhou
ISP
Hangzhou Alibaba Advertising Co., Ltd.
Organization
Alibaba.com LLC
Autonomous System
AS37963 Hangzhou Alibaba Advertising Co.,Ltd.
Hit Count
173
02

Detection Signatures

SignatureDescriptionPointsSeverity
404 ratio 40-60%Majority of requests returned 404 — enumeration+15
Danger strong hits: 4High-risk paths: shells, RCE vectors, exploits+100
Probe 302→404Behavioral anomaly detected by automated analysis+20
UA bot: pythonKnown bot/crawler User-Agent detected+40
Σ = 175
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

2026-09-06 20:16:07
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: 4 (+100), Probe 302→404 (+20)
2026-09-13 01:14:56
Last malicious request observed
Total score reached: 175/100
Next cycle
IP blocked — all subsequent requests denied (HTTP 403)
Added to blocklist automatically
05

Network Provider

Hangzhou Alibaba Advertising Co., Ltd.
AS37963 · 🇨🇳 China
06

Recommendations

Actions taken & recommended

  • IP 8.138.207.3 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 8.138.207.3: rate-limit 404 responses per IP, deploy a honeypot 404 page, ensure no backup files are web-accessible.

🤖 Bot Detection

Address UA spoofing from 8.138.207.3: maintain blocklist of known malicious UA strings, require consistent UA across sessions, implement TLS fingerprinting.

09

Blacklist Status (DNSBL)

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

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

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

10

Threat Analysis

8.138.207.3 has been assigned a threat score of 175/100 (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 EnumerationUser-Agent Anomaly

📊 Threat Analysis

Network traffic from 8.138.207.3, located in Guangzhou, China, operating on the network of Hangzhou Alibaba Advertising Co., Ltd., has been classified as malicious by our automated threat scoring engine. The address has been active for 6 days in our monitoring system, producing 173 flagged requests at a rate of ~28.8/day. Classified as a hosting IP, this address likely runs on a rented server or cloud instance. Attackers prefer datacenter IPs for their high bandwidth and disposable nature. The dual attack vectors of Path Enumeration combined with User-Agent Anomaly indicate a coordinated assault rather than opportunistic scanning. Our records show 126 malicious IPs originating from China, positioning it as a significant contributor to global threat activity. At 175/100, 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

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🏢 Same network: AS37963

101.200.57.251 (310)47.93.233.71 (273)223.4.99.56 (263)121.40.150.70 (263)47.105.93.65 (238)View all →
12

Security Intelligence

💡 HTTP Request Smuggling

Request smuggling exploits differences in how front-end and back-end servers parse HTTP requests. This technique can bypass security controls, poison web caches, and hijack other users sessions by desynchronizing request boundaries.

💡 Mobile Malware Distribution

Mobile malware reaches devices through unofficial app stores, malicious links, and even occasionally through official stores using obfuscation techniques. Banking trojans, spyware, and ransomware variants specifically designed for mobile platforms continue to proliferate.

🔍 Check Any IP Address

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