ABUSE.MOM
THREAT REPORT

IP Threat Report
171.234.9.66

ABUSE.MOM — BEHAVE OR GET EXPOSED

Generated: 2026-05-30 06:11:15
First seen: 2026-03-14 05:00:05
Last seen: 2026-04-08 03:00:06
160

⛔ Verdict: BLOCK

This IP address has been classified as a source of malicious automated activity. Threat score: 160/100. Total malicious requests observed: 6.

UA_CHANGEDREFERERDANGER_PATH
01

Geolocation & Classification

IP Address
171.234.9.66
Type
Residential
Country
🇻🇳 Vietnam
City
Ea Súp
ISP
Viettel Corporation
Organization
VIETEL
Autonomous System
AS7552 Viettel Group
Hit Count
6
02

Detection Signatures

SignatureDescriptionPointsSeverity
UA changed for same IPMultiple User-Agents — bot rotation technique+25
Foreign referer seenReferer from unrelated external domain+10
Danger strong hits: 8High-risk paths: shells, RCE vectors, exploits+100
Danger medium hits: 6Medium-risk: admin panels, config files+60
Σ = 195
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

2026-03-14 05:00:05
First malicious request detected
IP entered monitoring from server access logs
During observation
Multiple detection signatures triggered
UA changed for same IP (+25), Foreign referer seen (+10), Danger strong hits: 8 (+100)
2026-04-08 03:00:06
Last malicious request observed
Total score reached: 160/100
Next cycle
IP blocked — all subsequent requests denied (HTTP 403)
Added to blocklist automatically
05

Network Provider

Viettel Corporation
AS7552 · 🇻🇳 Vietnam
06

Recommendations

Actions taken & recommended

  • IP 171.234.9.66 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

🤖 Bot Detection

Address UA spoofing from 171.234.9.66: 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
dnsbl.sorbs.net
✓ Clean
ix.dnsbl.manitu.net
✓ Clean
zen.spamhaus.org
✓ Clean
bl.spamcop.net
✓ Clean
dnsbl-1.uceprotect.net
✓ Clean
b.barracudacentral.org
✓ Clean
truncate.gbudb.net
✓ Clean
psbl.surriel.com

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

10

Threat Analysis

171.234.9.66 has been assigned a threat score of 160/100 (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 Anomaly

📊 Threat Analysis

Threat intelligence analysis has linked 171.234.9.66 to malicious activity originating from Ea Súp, Vietnam, operating on the network of Viettel Corporation. The address has been under observation since its initial detection. The address has been active for 24 days in our monitoring system, producing 6 flagged requests at a rate of ~0.3/day. This is a residential IP address, suggesting a compromised home device such as a router, smart appliance, or infected workstation participating in a botnet. The IP exhibits User-Agent manipulation, switching between different browser identities or sending empty headers. With 107 flagged addresses, Vietnam represents a significant presence in our threat database. With a threat score of 160/100, this IP is among the most dangerous addresses in our database. Immediate and complete blocking is strongly recommended.

This IP is classified as residential, suggesting it may belong to a compromised home device, IoT botnet member, or an infected personal computer. Residential IPs involved in attacks often indicate malware infection without the owner's knowledge.

11

Related Threats

🇻🇳 Top threats from Vietnam

103.216.118.66 (273)210.2.86.189 (235)103.61.123.221 (235)116.118.47.174 (235)14.225.32.188 (235)View all →

🏢 Same network: AS7552

View all →
12

Security Intelligence

💡 TLS Fingerprinting (JA3/JA4)

TLS fingerprinting creates unique identifiers based on how clients negotiate encrypted connections. The JA3 and JA4 methods generate hashes from TLS ClientHello parameters, enabling identification of specific tools and malware regardless of IP address changes.

💡 Satellite Internet Security

Satellite internet introduces unique security challenges including high latency that affects real-time threat detection, shared bandwidth that enables traffic sniffing, and coverage areas that cross multiple jurisdictions complicating legal response.

🔍 Check Any IP Address

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