ABUSE.MOM
THREAT REPORT

IP Threat Report
157.66.252.137

ABUSE.MOM — BEHAVE OR GET EXPOSED

Generated: 2026-07-30 02:21:56
First seen: 2026-07-20 16:27:44
Last seen: 2026-07-26 03:59:36
85

⛔ Verdict: BLOCK

This IP address has been classified as a source of malicious automated activity. Threat score: 85/100. Total malicious requests observed: 349.

DANGER_PATHRATIO_404REDIRECT_PROBEREFERER
01

Geolocation & Classification

IP Address
157.66.252.137
Type
VPN
Country
🇻🇳 Vietnam
City
Ho Chi Minh City
ISP
Lienvps Technology Company Limited
Organization
Thanh Trang Cloud Computing and Technology Company Limited
Autonomous System
AS150820 LIENVPS TECHNOLOGY COMPANY LIMITED
Hit Count
349
02

Detection Signatures

SignatureDescriptionPointsSeverity
404 ratio 40-60%Majority of requests returned 404 — enumeration+15
Danger medium hits: 4Medium-risk: admin panels, config files+40
Foreign refererReferer from unrelated external domain+10
Probe 302→404Behavioral anomaly detected by automated analysis+20
Σ = 85
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

2026-07-20 16:27:44
First malicious request detected
IP entered monitoring from server access logs
During observation
Multiple detection signatures triggered
404 ratio 40-60% (+15), Danger medium hits: 4 (+40), Foreign referer (+10)
2026-07-26 03:59:36
Last malicious request observed
Total score reached: 85/100
Next cycle
IP blocked — all subsequent requests denied (HTTP 403)
Added to blocklist automatically
05

Network Provider

Lienvps Technology Company Limited
AS150820 · 🇻🇳 Vietnam
06

Recommendations

Actions taken & recommended

  • IP 157.66.252.137 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 157.66.252.0/24
  • 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 157.66.252.137: rate-limit 404 responses per IP, deploy a honeypot 404 page, ensure no backup files are web-accessible.

07

Neighbors in 157.66.252.0/24

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

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

10

Threat Analysis

157.66.252.137 has been assigned a threat score of 85/100 (Critical). This is a critical-level threat. Systems administrators should treat this IP as hostile and block all inbound connections without exception.

The following attack categories were identified:

Path Enumeration

📊 Threat Analysis

IP address 157.66.252.137 has been traced to Ho Chi Minh City, Vietnam, operating on the network of Lienvps Technology Company Limited. Our threat detection systems have flagged this address based on observed malicious behavior patterns. Our sensors captured 349 malicious requests from this address across a 5-day span, reflecting a sustained attack cadence of ~69.8 requests per day. Classified as a VPN or proxy server, this IP serves as an anonymization layer. While VPNs have legitimate uses, this address has been observed routing clearly malicious traffic. Active path scanning has been detected — this IP probes for hundreds of common file and directory names. Vietnam currently accounts for 118 blocked IPs in our database, making it a significant source of malicious traffic. A threat score of 85/100 places this IP in the high-risk category. Blocking at the firewall level is recommended.

This IP is associated with a VPN or proxy service. Attackers frequently route their traffic through anonymizing services to obscure their true location. This makes attribution more challenging but the malicious behavior patterns remain detectable.

11

Related Threats

🇻🇳 Top threats from Vietnam

103.216.118.66 (273)163.223.211.27 (253)103.61.123.221 (235)14.225.32.188 (235)210.2.86.189 (235)View all →

🏢 Same network: AS150820

160.22.174.119 (130)203.175.97.204 (130)157.15.38.46 (130)160.22.175.155 (130)160.22.172.9 (130)View all →
12

Security Intelligence

💡 SQL Injection Campaigns

SQL injection remains one of the most common web attack vectors. Attackers inject malicious SQL code through input fields to extract database contents, modify data, or gain administrative access. Automated scanners test for SQLi vulnerabilities at massive scale.

💡 Responsible Disclosure Ethics

Responsible disclosure balances public safety with giving vendors time to patch vulnerabilities. The security community generally supports coordinated disclosure timelines, but disagreements about appropriate timeframes and full disclosure continue to drive policy debates.

🔍 Check Any IP Address

Share this report: