ABUSE.MOM
THREAT REPORT

IP Threat Report
183.80.143.137

ABUSE.MOM — BEHAVE OR GET EXPOSED

Generated: 2026-10-26 11:57:13
First seen: 2026-09-16 15:59:15
Last seen: 2026-09-20 02:19:30
70

⛔ Verdict: BLOCK

This IP address has been classified as a source of malicious automated activity. Threat score: 70/100. Total malicious requests observed: 106.

BURSTREFERERUA_CHANGED
01

Geolocation & Classification

IP Address
183.80.143.137
Type
Residential
Country
🇻🇳 Vietnam
City
Hanoi
ISP
Vietnam Internet Network Information Center
Organization
Unknown
Autonomous System
AS18403 FPT Telecom Company
Hit Count
106
02

Detection Signatures

SignatureDescriptionPointsSeverity
Burst 5/2sAbnormally fast request rate — automated scanning+35
Foreign refererReferer from unrelated external domain+10
UA changedMultiple User-Agents — bot rotation technique+25
Σ = 70
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

2026-09-16 15:59:15
First malicious request detected
IP entered monitoring from server access logs
During observation
Multiple detection signatures triggered
Burst 5/2s (+35), Foreign referer (+10), UA changed (+25)
2026-09-20 02:19:30
Last malicious request observed
Total score reached: 70/100
Next cycle
IP blocked — all subsequent requests denied (HTTP 403)
Added to blocklist automatically
05

Network Provider

Vietnam Internet Network Information Center
AS18403 · 🇻🇳 Vietnam

We have detected 97 malicious IPs from this autonomous system.

View all IPs from AS18403 →
06

Recommendations

Actions taken & recommended

  • IP 183.80.143.137 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

🌊 Traffic Flood Defense

IP 183.80.143.137 is generating excessive traffic. Limit connections per source IP. Enable geographic blocking if traffic from this region is unexpected.

🤖 Bot Detection

Address UA spoofing from 183.80.143.137: 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.dronebl.org
✓ Clean
bl.blocklist.de
✓ Clean
zen.spamhaus.org
✓ Clean
cbl.abuseat.org
✓ Clean
spam.dnsbl.sorbs.net
✓ Clean
b.barracudacentral.org
✓ Clean
psbl.surriel.com

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

10

Threat Analysis

183.80.143.137 has been assigned a threat score of 70/100 (High). The IP is rated as a high-level threat. Network administrators should implement blocking rules and monitor for any connections from this address.

The following attack categories were identified:

Request FloodingUser-Agent Anomaly

📊 Threat Analysis

The address 183.80.143.137 originates from Hanoi, Vietnam, operating on the network of Vietnam Internet Network Information Center. It was identified through automated analysis of incoming network traffic across monitored endpoints. Our sensors captured 106 malicious requests from this address across a 3-day span, reflecting a sustained attack cadence of ~35.3 requests per day. This residential IP is likely a compromised consumer device. Home routers and IoT equipment with default credentials are prime targets for botnet operators. The dual attack vectors of Request Flooding combined with User-Agent Anomaly indicate a coordinated assault rather than opportunistic scanning. Vietnam currently accounts for 1,193 blocked IPs in our database, making it a major source of malicious traffic. At 70/100, this IP warrants immediate defensive action.

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

103.98.152.152 (285)180.93.0.112 (280)103.216.118.66 (273)183.91.14.218 (255)163.223.211.27 (253)View all →

🏢 Same network: AS18403

42.114.19.219 (183)42.116.119.228 (180)42.118.97.114 (173)1.53.55.90 (168)42.112.79.247 (130)View all →
12

Security Intelligence

💡 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.

💡 Certificate Transparency Monitoring

Certificate Transparency logs record all publicly trusted TLS certificates. Monitoring these logs reveals unauthorized certificate issuance, phishing domain preparation, and shadow IT — providing early warning of attacks targeting an organizations domain.

🔍 Check Any IP Address

Share this report: