ABUSE.MOM
THREAT REPORT

IP Threat Report
201.80.43.34

ABUSE.MOM — BEHAVE OR GET EXPOSED

Generated: 2026-10-26 15:29:39
First seen: 2026-10-20 16:26:03
Last seen: 2026-10-25 04:04:09
60

⛔ Verdict: BLOCK

This IP address has been classified as a source of malicious automated activity. Threat score: 60/100. Total malicious requests observed: 98.

DANGER_PATHRATIO_404REFERER
01

Geolocation & Classification

IP Address
201.80.43.34
Type
Residential
Country
🇧🇷 Brazil
City
Nova Lima
ISP
Claro NXT Telecomunicacoes Ltda
Organization
Claro NXT Telecomunicacoes Ltda
Autonomous System
AS28573 Claro NXT Telecomunicacoes Ltda
Hit Count
98
02

Detection Signatures

SignatureDescriptionPointsSeverity
404 ratio >= 60%Majority of requests returned 404 — enumeration+25
Danger strong hits: 1High-risk paths: shells, RCE vectors, exploits+25
Foreign refererReferer from unrelated external domain+10
Σ = 60
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

2026-10-20 16:26:03
First malicious request detected
IP entered monitoring from server access logs
During observation
Multiple detection signatures triggered
404 ratio >= 60% (+25), Danger strong hits: 1 (+25), Foreign referer (+10)
2026-10-25 04:04:09
Last malicious request observed
Total score reached: 60/100
Next cycle
IP blocked — all subsequent requests denied (HTTP 403)
Added to blocklist automatically
05

Network Provider

Claro NXT Telecomunicacoes Ltda
AS28573 · 🇧🇷 Brazil

We have detected 148 malicious IPs from this autonomous system.

View all IPs from AS28573 →
06

Recommendations

Actions taken & recommended

  • IP 201.80.43.34 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 201.80.43.34: rate-limit 404 responses per IP, deploy a honeypot 404 page, ensure no backup files are web-accessible.

09

Blacklist Status (DNSBL)

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

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

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

10

Threat Analysis

201.80.43.34 has been assigned a threat score of 60/100 (High). This classifies it as a high-severity threat. Proactive blocking is recommended for sensitive infrastructure.

The following attack categories were identified:

Path Enumeration

📊 Threat Analysis

Network traffic from 201.80.43.34, located in Nova Lima, Brazil, operating on the network of Claro NXT Telecomunicacoes Ltda, has been classified as malicious by our automated threat scoring engine. The address has been active for 4 days in our monitoring system, producing 98 flagged requests at a rate of ~24.5/day. Operating from a residential network, this IP may represent a compromised home gateway or IoT device that has been drafted into a larger attack infrastructure. The IP exhibits directory enumeration behavior, systematically requesting non-existent paths to discover hidden files and misconfigured resources. Brazil currently accounts for 2,193 blocked IPs in our database, making it a major source of malicious traffic. At 60/100, this IP presents a meaningful threat. Implement rate limiting with escalation to blocking.

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 Brazil

34.95.200.255 (320)107.149.152.45 (308)34.95.148.192 (298)35.247.218.13 (298)35.247.222.75 (295)View all →

🏢 Same network: AS28573

179.222.190.51 (178)186.221.196.113 (143)189.62.47.54 (140)186.205.10.119 (120)177.181.4.225 (120)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.

💡 Critical Infrastructure Targeting

Attacks on power grids, water systems, and transportation networks have moved from theoretical to practical threats. Industrial control systems often lack modern security features, making them vulnerable to both targeted and opportunistic attacks.

🔍 Check Any IP Address

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