Is IP address 45.187.121.38 dangerous?

Yes, 45.187.121.38 is considered dangerous with a threat level of 8/10. It has been reported 6 times for malicious activities including . We recommend blocking this IP address.

Who owns or operates IP address 45.187.121.38?

IP address 45.187.121.38 is operated by RIOTELE-REAL INTERNET OPTICA TELECOMUNICACOES (ASN 268546) and is geolocated to BR. This information is derived from public WHOIS and geolocation databases.

Should I block IP address 45.187.121.38?

Yes, blocking 45.187.121.38 is strongly recommended. With a threat level of 8/10 and 6 security reports, this IP poses significant risk. Implement firewall rules to block incoming and outgoing traffic.

How accurate is this threat assessment for 45.187.121.38?

Our threat assessment for 45.187.121.38 has a confidence score of 51%, based on 6 independent reports from multiple independent sources. Higher confidence scores indicate more reliable assessments.

IP Address

45.187.121.38

IPv4 Public

AS268546

RIOTELE-REAL INTERNET OPTICA TELECOMUNICACOES

6 Reports

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Brazil Location

RIOTELE-REAL INTERNET OPT... ASN 268546

6 Reports

Mixed Data Source

High Risk

IP 45.187.121.38 rated at threat level 8/10 based on 6 security reports.

Pattern analysis reveals concerning activity. Confidence: 51%.

More threatening than 92% of monitored IPs

Threat Categories

Brute-Force 6

SSH 6

Technical Details

Brute-force attacks systematically attempt password combinations against authentication systems.

Recommended Mitigations

Implement rate limiting, account lockout policies, multi-factor authentication, and fail2ban.

Behavioral Analysis

Activity Pattern: Consistent Activity

Steady malicious activity over 1 week indicates persistent threat actor operations.

First Observed 19. October 2026

Last Activity 29. October 2026

Recent (7 days) 4 incidents

High-Risk Network Association

This IP belongs to a network (ASN 268546) with elevated threat levels. The ISP RIOTELE-REAL INTERNET OPTICA TELECOMUNICACOES hosts multiple reported malicious addresses, suggesting systemic security issues or permissive policies.

Network-wide patterns may indicate this is part of a larger malicious infrastructure.

Security Recommendations

Monitor closely and consider blocking. Escalation potential detected.

Long-term blocking recommended.

Reputation Summary

Threat Level 8/10 High

Critical

Activity Frequency 5/10 Moderate

Confidence Score 51% High Confidence

Confidence History

19. Oct 2026 - 29. Oct 2026

51% Current

Stable Trend

Date	Categories	Source	Confidence
29. Oct 2026 New	SSH Brute-Force	Community	75%
29. Oct 2026 New	Brute-Force SSH	Honeypot	75%
28. Oct 2026	SSH Brute-Force	Community	75%
25. Oct 2026	SSH Brute-Force	Community	75%
22. Oct 2026	SSH Brute-Force	Community	75%
19. Oct 2026	SSH Brute-Force	Community	75%

Basic Information

IP Address: 45.187.121.38
IP Version: IPv4
Network Type: Public
Tor Network: No
Network Class: Class A

Geolocation

Country: BR
ASN: AS268546
ISP: RIOTELE-REAL INTERNET OPTICA TELECOMUNICACOES

DNS Information

Reverse DNS: None
PTR Record: No
Connection Type: Static

Statistics

Total Reports: 6
First Reported: 26 Oct 2026
Last Reported: 29 Oct 2026, 16:41

Network Reputation

Analysis of the entire network (ASN) that this IP address belongs to, providing context about the hosting provider and network-wide threat patterns.

Network Identity

ASN: AS268546

Organization: RIOTELE-REAL INTERNET OPTICA TELECOMUNICACOES

Country:

Network Threat Assessment

9/10

This network has a high threat level with significant malicious activity reported across multiple IPs.

Network Statistics

Total IPs Monitored

Total Reports

24.5

Reports per IP

Network Context

This IP address belongs to RIOTELE-REAL INTERNET OPTICA TELECOMUNICACOES (AS268546), which manages 2 IP addresses in our monitoring system. Out of these, 49 have been reported for suspicious activities, resulting in a network-wide threat level of 9/10.

Network warning: This network has elevated threat levels. Exercise caution when interacting with IPs from this ASN.

Comparative Analysis

How this IP compares to others in our threat intelligence database

92 %

Global Threat Ranking

This IP is more threatening than 92% of all IPs in our database.

Top 10% Most Dangerous

Global Comparison

Compared against 1,293,976 reported IPs worldwide

Threat Level 8/10 avg: 6.0 +

Total Reports 6 avg: 7 =

Network Comparison

Compared against 61 IPs in ASN 268546

Threat Level 8/10 network avg: 5.6 +

Total Reports 6 network avg: 3 ++

Network RIOTELE-REAL INTERNET OPTICA TELECOMUNICACOES has overall threat level 9/10

Geographic Comparison

Compared against 258,664 IPs in BR

Threat Level 8/10 country avg: 5.2 ++

Total Reports 6 country avg: 2 ++

Daily report activity over the last 30 days showing patterns and peaks.

Peak Day 29 Oct 2026 2 reports

Daily Average 0.2 reports/day

Most Active Thursday 3 reports

Evolution of threat level over time based on reported categories and frequency.

Initial Threat 6/10

Current Threat 6/10

Distribution of threat categories reported over time.

Top Threat Categories

SSH 6

Brute-Force 6

Activity patterns showing when this IP is most active during the day and week.

Hourly Activity

Peak activity at 02:00 with 1 reports

Weekly Activity

Geographic Threat Distribution

1,179,597 threat incidents tracked globally • Last 24h: 27,103 Logs

FEED

Top Threat Sources

01

Brazil BR THIS IP

258,664 21.9%
02

United States US

200,230 17%
03

India IN

102,634 8.7%
04

China CN

49,719 4.2%
05

Argentina AR

41,953 3.6%
06

SC SC

29,413 2.5%
07

Mexico MX

27,459 2.3%
08

Russia RU

26,528 2.2%
09

Colombia CO

24,033 2%
10

Germany DE

22,991 1.9%

+40 more countries

THREAT LEVEL

LOW MED HIGH

IPs from the same Autonomous System (AS) network provider.

20 Related IPs

5.5/10 Avg Threat

26% Avg Confidence

3 High Threat

High Risk

Threat Categories

Technical Details

Recommended Mitigations

Behavioral Analysis

High-Risk Network Association

Security Recommendations

Basic Information

Geolocation

DNS Information

Statistics

Network Reputation

Network Identity

Network Threat Assessment

Network Statistics

Network Context

Global Threat Ranking

Top Threat Categories

Hourly Activity

Weekly Activity

FEED

Top Threat Sources

JSON Report

Firewall Rules

iptables / netfilter

UFW (Ubuntu)

Windows Firewall

Cloudflare

nginx

Apache .htaccess

PDF Report

Analyzed high-risk IP addresses