ABUSE.MOM
THREAT REPORT

IP Threat Report
206.42.20.51

ABUSE.MOM — BEHAVE OR GET EXPOSED

Generated: 2026-05-27 07:01:01
First seen: 2026-03-03 23:00:06
Last seen: 2026-04-06 21:00:06
103

⛔ Verdict: BLOCK

This IP address has been classified as a source of malicious automated activity. Threat score: 103/100. Total malicious requests observed: 5.

DANGER_PATHMETHODRATIO_404
01

Geolocation & Classification

IP Address
206.42.20.51
Type
Residential
Country
🇧🇷 Brazil
City
Teresina
ISP
Brisanet Prestacao De Servicos De Internet Ltda
Organization
Brisanet Prestacao De Servicos De Internet Ltda
Autonomous System
AS28126 BRISANET SERVICOS DE TELECOMUNICACOES S.A
Hit Count
5
02

Detection Signatures

SignatureDescriptionPointsSeverity
Danger strong hits: 3High-risk paths: shells, RCE vectors, exploits+75
Danger medium hits: 2Medium-risk: admin panels, config files+20
POST requests presentBehavioral anomaly detected by automated analysis+8
Danger strong hits: 1High-risk paths: shells, RCE vectors, exploits+25
Danger medium hits: 1Medium-risk: admin panels, config files+10
404 ratio >= 60%Majority of requests returned 404 — enumeration+25
Σ = 163
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

2026-03-03 23:00:06
First malicious request detected
IP entered monitoring from server access logs
During observation
Multiple detection signatures triggered
Danger strong hits: 3 (+75), Danger medium hits: 2 (+20), POST requests present (+8)
2026-04-06 21:00:06
Last malicious request observed
Total score reached: 103/100
Next cycle
IP blocked — all subsequent requests denied (HTTP 403)
Added to blocklist automatically
05

Network Provider

Brisanet Prestacao De Servicos De Internet Ltda
AS28126 · 🇧🇷 Brazil
06

Recommendations

Actions taken & recommended

  • IP 206.42.20.51 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 206.42.20.51: rate-limit 404 responses per IP, deploy a honeypot 404 page, ensure no backup files are web-accessible.

08

Open Ports & Services

Network reconnaissance data from Shodan. Open ports may indicate running services, misconfigurations, or potential attack surfaces.

OPEN PORTS (3)
PortServiceRiskDescription
80HTTPLowHTTP web server — standard web traffic
8061UnknownLowService on port 8061
9095UnknownLowService on port 9095
KNOWN VULNERABILITIES (CVE) (3)
CVE IDLink
CVE-2015-1635NVD →
MS15-034NVD →
CVE-2014-4078NVD →

🔴 Security scanning identified 3 vulnerability entries on this host. Multiple vulnerabilities suggest gaps in patch management. Consult NVD advisories for details.

DETECTED TECHNOLOGIES
microsoft:internet_information_services:10.0microsoft:asp.netmicrosoft:internet_information_servicesmicrosoft:windowsmicrosoft:internet_information_services:8.5
Hostnames: 206-42-20-51-tmp.static.brisanet.net.br
PTR: 206-42-20-51-tmp.static.brisanet.net.br

Data source: Shodan InternetDB. Scanned independently of abuse.mom.

09

Blacklist Status (DNSBL)

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

✓ Clean
Spamhaus ZEN

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

10

Threat Analysis

206.42.20.51 has been assigned a threat score of 103/100 (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

Threat intelligence analysis has linked 206.42.20.51 to malicious activity originating from Teresina, Brazil, operating on the network of Brisanet Prestacao De Servicos De Internet Ltda. The address has been under observation since its initial detection. Our sensors captured 5 malicious requests from this address across a 33-day span, reflecting a sustained attack cadence of ~0.2 requests per day. The address is classified as residential, meaning it likely belongs to an end-user ISP connection. Malicious activity from residential IPs typically indicates device compromise or botnet membership. Active path scanning has been detected — this IP probes for hundreds of common file and directory names. With 128 flagged addresses, Brazil represents a significant presence in our threat database. A score of 103/100 places this address in the top tier of severity. Block and investigate any historical connections.

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

173.245.211.6 (293)20.206.78.203 (283)20.197.194.128 (280)20.197.233.108 (280)20.226.83.230 (280)View all →

🏢 Same network: AS28126

187.19.156.133 (103)187.19.156.109 (103)177.37.237.137 (103)187.19.252.175 (103)187.19.156.155 (103)View all →
12

Security Intelligence

💡 API Abuse and Enumeration

Modern attacks increasingly target APIs rather than traditional web interfaces. Attackers enumerate endpoints, test for broken authentication, and exploit excessive data exposure. API attacks are harder to detect as they mimic legitimate programmatic access patterns.

💡 Machine Learning in Threat Detection

Machine learning models analyze vast amounts of network traffic to identify attack patterns invisible to rule-based systems. Supervised models classify known attack types while unsupervised models detect anomalies that may indicate novel threats.

🔍 Check Any IP Address

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