Is IP address 103.53.158.121 dangerous?

Yes, 103.53.158.121 is considered dangerous with a threat level of 8/10. It has been reported 17 times for malicious activities including . We recommend blocking this IP address.

Who owns or operates IP address 103.53.158.121?

IP address 103.53.158.121 is operated by HOSTVN Technology Solutions Joint Stock Company (ASN 63765) and is geolocated to VN. This information is derived from public WHOIS and geolocation databases.

Should I block IP address 103.53.158.121?

Yes, blocking 103.53.158.121 is strongly recommended. With a threat level of 8/10 and 17 security reports, this IP poses significant risk. Implement firewall rules to block incoming and outgoing traffic.

How accurate is this threat assessment for 103.53.158.121?

Our threat assessment for 103.53.158.121 has a confidence score of 100%, based on 17 independent reports from multiple independent sources. Higher confidence scores indicate more reliable assessments.

IP Address

103.53.158.121

IPv4 Public

AS63765

HOSTVN Technology Solutions Joint Stock Company

17 Reports

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Vietnam Location

HOSTVN Technology Solutio... ASN 63765

17 Reports

Mixed Data Source

Significant Threat

IP 103.53.158.121 identified as significant threat (8/10) from 17 events.

Multiple malicious indicators detected. Confidence level: 100%.

More threatening than 90% of monitored IPs

Threat Categories

SSH 17

Brute-Force 14

Technical Details

SSH attacks attempt to gain server access through password guessing or exploitation of SSH vulnerabilities.

Recommended Mitigations

Use key-based authentication, change default ports, implement fail2ban, and disable root login.

Behavioral Analysis

Activity Pattern: Consistent Activity

Steady malicious activity over 2 weeks indicates persistent threat actor operations.

First Observed 21. September 2026

Last Activity 7. October 2026

Recent (7 days) 8 incidents

High-Risk Network Association

This IP belongs to a network (ASN 63765) with elevated threat levels. The ISP HOSTVN Technology Solutions Joint Stock Company 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

Implement rate limiting or temporary blocking measures.

Long-term blocking recommended.

Reputation Summary

Threat Level 8/10 High

Critical

Activity Frequency 8/10 High

Confidence Score 100% Verified

Confidence History

21. Sep 2026 - 7. Oct 2026

100% Current

Stable Trend

Date	Categories	Source	Confidence
7. Oct 2026 New	Brute-Force SSH	Honeypot	75%
7. Oct 2026 New	Brute-Force SSH	Honeypot	75%
7. Oct 2026 New	Brute-Force SSH	Honeypot	75%
2. Oct 2026	Brute-Force SSH	Honeypot	75%
2. Oct 2026	Brute-Force SSH	Honeypot	75%
2. Oct 2026	Brute-Force SSH	Honeypot	75%
2. Oct 2026	SSH Brute-Force	Community	75%
2. Oct 2026	SSH Brute-Force	Community	75%
1. Oct 2026	SSH Brute-Force	Community	75%
29. Sep 2026	SSH Brute-Force	Community	75%
28. Sep 2026	SSH Brute-Force	Community	75%
24. Sep 2026	SSH	Honeypot	75%
22. Sep 2026	SSH	Honeypot	75%
21. Sep 2026	Brute-Force SSH	Honeypot	75%
21. Sep 2026	Brute-Force SSH	Honeypot	75%
21. Sep 2026	Brute-Force SSH	Honeypot	75%
21. Sep 2026	SSH	Honeypot	75%

Basic Information

IP Address: 103.53.158.121
IP Version: IPv4
Network Type: Public
Tor Network: No
Network Class: Class A

Geolocation

Country: VN
ASN: AS63765
ISP: HOSTVN Technology Solutions Joint Stock Company

DNS Information

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

Statistics

Total Reports: 17
First Reported: 21 Sep 2026
Last Reported: 7 Oct 2026, 22:39

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: AS63765

Organization: HOSTVN Technology Solutions Joint Stock Company

Country:

Network Threat Assessment

7/10

This network shows moderate threat levels with some malicious activity patterns.

Network Statistics

Total IPs Monitored

Total Reports

Reports per IP

Network Context

This IP address belongs to HOSTVN Technology Solutions Joint Stock Company (AS63765), which manages 1 IP addresses in our monitoring system. Out of these, 1 have been reported for suspicious activities, resulting in a network-wide threat level of 7/10.

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

90 %

Global Threat Ranking

This IP is more threatening than 90% of all IPs in our database.

Top 10% Most Dangerous

Global Comparison

Compared against 833,268 reported IPs worldwide

Threat Level 8/10 avg: 6.3 +

Total Reports 17 avg: 9 ++

Network Comparison

Compared against 3 IPs in ASN 63765

Threat Level 8/10 network avg: 7.3 =

Total Reports 17 network avg: 6 ++

Network HOSTVN Technology Solutions Joint Stock Company has overall threat level 7/10

Geographic Comparison

Compared against 9,172 IPs in VN

Threat Level 8/10 country avg: 6.7 +

Total Reports 17 country avg: 9 ++

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

Peak Day 2 Oct 2026 5 reports

Daily Average 0.6 reports/day

Most Active Monday 5 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 17

Brute-Force 14

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

Hourly Activity

Peak activity at 16:00 with 3 reports

Weekly Activity

Geographic Threat Distribution

757,519 threat incidents tracked globally • Last 24h: 30,670 Logs

FEED

Top Threat Sources

01

United States US

148,275 19.6%
02

Brazil BR

111,878 14.8%
03

India IN

87,206 11.5%
04

China CN

46,091 6.1%
05

SC SC

29,253 3.9%
06

Germany DE

18,444 2.4%
07

Netherlands NL

18,000 2.4%
08

Pakistan PK

17,824 2.4%
09

Argentina AR

16,272 2.1%
10

Colombia CO

15,171 2%

+40 more countries

THREAT LEVEL

LOW MED HIGH

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

2 Related IPs

7/10 Avg Threat

3% Avg Confidence

2 High Threat

High-risk network: Majority of related IPs are flagged

IPs from the same country with similar threat profiles.

15 Related IPs

10/10 Avg Threat

100% Avg Confidence

15 High Threat

High-risk network: Majority of related IPs are flagged

Significant Threat

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