ABUSE.MOM
THREAT REPORT

IP Threat Report
186.221.196.113

ABUSE.MOM — BEHAVE OR GET EXPOSED

Generated: 2026-05-27 19:26:38
First seen: 2026-04-16 04:00:06
Last seen: 2026-05-11 17:00:07
143

⛔ Verdict: BLOCK

This IP address has been classified as a source of malicious automated activity. Threat score: 143/100. Total malicious requests observed: 7.

DANGER_PATHRATIO_404METHOD
01

Geolocation & Classification

IP Address
186.221.196.113
Type
Residential
Country
🇧🇷 Brazil
City
Rio de Janeiro
ISP
Claro NXT Telecomunicacoes Ltda
Organization
NET Serviços de Comunicação S.A.
Autonomous System
AS28573 Claro NXT Telecomunicacoes Ltda
Hit Count
7
02

Detection Signatures

SignatureDescriptionPointsSeverity
Danger strong hits: 2High-risk paths: shells, RCE vectors, exploits+50
Danger medium hits: 1Medium-risk: admin panels, config files+10
404 ratio 40-60%Majority of requests returned 404 — enumeration+15
POST requests presentBehavioral anomaly detected by automated analysis+8
Danger strong hits: 1High-risk paths: shells, RCE vectors, exploits+25
404 ratio >= 60%Majority of requests returned 404 — enumeration+25
Danger strong hits: 3High-risk paths: shells, RCE vectors, exploits+75
Danger medium hits: 2Medium-risk: admin panels, config files+20
Danger strong hits: 4High-risk paths: shells, RCE vectors, exploits+100
Σ = 328
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

2026-04-16 04:00:06
First malicious request detected
IP entered monitoring from server access logs
During observation
Multiple detection signatures triggered
Danger strong hits: 2 (+50), Danger medium hits: 1 (+10), 404 ratio 40-60% (+15)
2026-05-11 17:00:07
Last malicious request observed
Total score reached: 143/100
Next cycle
IP blocked — all subsequent requests denied (HTTP 403)
Added to blocklist automatically
05

Network Provider

Claro NXT Telecomunicacoes Ltda
AS28573 · 🇧🇷 Brazil
06

Recommendations

Actions taken & recommended

  • IP 186.221.196.113 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 186.221.196.113: 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.

⛔ LISTED
zen.spamhaus.org
✓ Clean
ix.dnsbl.manitu.net
✓ Clean
bl.spamcop.net
✓ Clean
dnsbl.sorbs.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

186.221.196.113 has been assigned a threat score of 143/100 (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 Enumeration

📊 Threat Analysis

Our monitoring infrastructure has identified 186.221.196.113, geolocated to Rio de Janeiro, Brazil, operating on the network of Claro NXT Telecomunicacoes Ltda, as a source of suspicious network activity. Our sensors captured 7 malicious requests from this address across a 25-day span, reflecting a sustained attack cadence of ~0.3 requests per 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 directory enumeration behavior, systematically requesting non-existent paths to discover hidden files and misconfigured resources. Our records show 201 malicious IPs originating from Brazil, positioning it as a significant contributor to global threat activity. At 143/100, this is an extremely high-risk address. All traffic should be considered hostile.

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

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🏢 Same network: AS28573

189.62.47.54 (140)189.63.146.109 (103)201.81.52.82 (103)179.158.171.112 (103)179.159.35.47 (103)View all →
12

Security Intelligence

💡 Remote Code Execution (RCE)

RCE vulnerabilities allow attackers to execute arbitrary code on target servers. These critical flaws often arise from deserialization bugs, template injection, or file upload vulnerabilities, and represent the highest severity class of web application weaknesses.

💡 VPN Exit Node Reputation

VPN exit nodes aggregate traffic from many users, creating mixed reputation profiles. While legitimate users seek privacy, attackers exploit VPN services to anonymize malicious activity, making IP-based blocking of VPN nodes a complex policy decision.

🔍 Check Any IP Address

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