Is IP address 103.143.239.75 dangerous?

Yes, 103.143.239.75 is considered dangerous with a threat level of 7/10. It has been reported 2 times for malicious activities including . We recommend blocking this IP address.

Who owns or operates IP address 103.143.239.75?

IP address 103.143.239.75 is operated by YISU CLOUD LTD (ASN 138152) and is geolocated to HK. This information is derived from public WHOIS and geolocation databases.

Should I block IP address 103.143.239.75?

Yes, blocking 103.143.239.75 is strongly recommended. With a threat level of 7/10 and 2 security reports, this IP poses significant risk. Implement firewall rules to block incoming and outgoing traffic.

How accurate is this threat assessment for 103.143.239.75?

Our threat assessment for 103.143.239.75 has a confidence score of 31%, based on 2 independent reports from multiple independent sources. Higher confidence scores indicate more reliable assessments.

IP Address

103.143.239.75

IPv4 Public

AS138152

YISU CLOUD LTD

2 Reports

Is this your IP address? If the cause is fixed, you can request removal. Free of charge, usually decided within 48 hours. Request delisting

Hong Kong Location

YISU CLOUD LTD ASN 138152

2 Reports

Honeypot Data Source

Substantial Risk

Threat level 7/10 for 103.143.239.75 based on 2 documented incidents.

Consistent suspicious behavior patterns. 31% confidence rating.

More threatening than 84% of monitored IPs

Threat Categories

SSH 2

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 less than a day indicates persistent threat actor operations.

First Observed 20. September 2026

Last Activity 20. September 2026

Recent (7 days) 0 incidents

Reputable Network

This IP is hosted on a network (ASN 138152) with generally good reputation. The ISP YISU CLOUD LTD maintains standard security practices.

The malicious activity may represent an isolated compromised system rather than systematic abuse.

Security Recommendations

Configure firewall rules and intrusion detection alerts.

Long-term blocking recommended.

Reputation Summary

Threat Level 7/10 High

High

Activity Frequency 0/10 Inactive

Confidence Score 31% Medium Confidence

Confidence History

20. Sep 2026

31% Current

Stable Trend

Date	Categories	Source	Confidence
20. Sep 2026	SSH	Honeypot	75%
20. Sep 2026	SSH	Honeypot	75%

Basic Information

IP Address: 103.143.239.75
IP Version: IPv4
Network Type: Public
Tor Network: No
Network Class: Class A

Geolocation

Country: HK
ASN: AS138152
ISP: YISU CLOUD LTD

DNS Information

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

Statistics

Total Reports: 2
First Reported: 20 Sep 2026
Last Reported: 20 Sep 2026, 08:25

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: AS138152

Organization: YISU CLOUD LTD

Country:

Network Threat Assessment

3/10

This network appears to be relatively clean with very low threat indicators.

Network Statistics

Total IPs Monitored

1,800

Total Reports

40.9

Reports per IP

Network Context

This IP address belongs to YISU CLOUD LTD (AS138152), which manages 44 IP addresses in our monitoring system. Out of these, 1,800 have been reported for suspicious activities, resulting in a network-wide threat level of 3/10.

Network status: This network appears to be well-maintained with low threat indicators.

Comparative Analysis

How this IP compares to others in our threat intelligence database

84 %

Global Threat Ranking

This IP is more threatening than 84% of all IPs in our database.

High Threat Percentile

Global Comparison

Compared against 806,046 reported IPs worldwide

Threat Level 7/10 avg: 6.3 =

Total Reports 2 avg: 9 --

Network Comparison

Compared against 68 IPs in ASN 138152

Threat Level 7/10 network avg: 8.5 -

Total Reports 2 network avg: 32 --

Network YISU CLOUD LTD has overall threat level 3/10

Geographic Comparison

Compared against 5,316 IPs in HK

Threat Level 7/10 country avg: 7.8 =

Total Reports 2 country avg: 29 --

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

Peak Day 20 Sep 2026 2 reports

Daily Average 0.1 reports/day

Most Active Sunday 2 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 2

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

732,967 threat incidents tracked globally • Last 24h: 29,187 Logs

FEED

Top Threat Sources

01

United States US

143,148 19.5%
02

Brazil BR

110,710 15.1%
03

India IN

82,093 11.2%
04

China CN

44,715 6.1%
05

SC SC

29,233 4%
06

Germany DE

17,452 2.4%
07

Netherlands NL

17,448 2.4%
08

Pakistan PK

16,609 2.3%
09

Argentina AR

16,188 2.2%
10

Colombia CO

15,132 2.1%

+40 more countries

THREAT LEVEL

LOW MED HIGH

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

20 Related IPs

9/10 Avg Threat

56% Avg Confidence

19 High Threat

High-risk network: Majority of related IPs are flagged

Substantial Risk

Threat Categories

Technical Details

Recommended Mitigations

Behavioral Analysis

Reputable Network

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

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