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weathernews.jp Domain Breach Exposure Report

Risk Score

High Risk

Massive event volume or critical assets compromised.

AI Findings Summary

Critical

The telemetry indicates a significant exposure event impacting weathernews.jp, with 1373 total events observed between July 2025 and June 2026. The majority of these events, 1196, are classified as historical data breaches, primarily originating from "Combolist sources" (1190 instances). Additionally, 177 events are identified as active infostealer logs, with LummaC2, Redline, and Rhadamanthys being the most prevalent malware families. The exposure primarily affects clients (1298) but also includes employees (75). Targeted services include the main domain, subscription pages, and login portals, suggesting potential credential compromise and unauthorized access. The data suggests a high risk of further compromise and data exfiltration due to the prevalence of infostealer malware and the nature of the data breach origins.

Total Events

1,373
credential exposure events

Employee Affected Events

75
account email domain = weathernews.jp

Client Affected Events

1,298
service target = weathernews.jp

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12-Month Events Timeline

Event volume by breach date, employee VS client

EmployeesClients
4002671330
peak month 344
Jul 25Sep 25Nov 25Jan 26Mar 26May 26Jun 26

Infostealers VS Data Breaches

Live stealer logs VS data breaches

Infostealer logs
Events177
Share13%
Data breaches
Events1,196
Share87%
Infostealer logs (13%)
177events
Data breaches (87%)
1,196events

75 compromised employee accounts pose an infrastructure risk, while 1,298 leaked client credentials create regulatory liability.

Antivirus Distribution

Security Tools on Infected Endpoints

Windows Defender11

Malware Families Distribution

Distribution of Active Stealer Strains

LummaC227
Redline16
Rhadamanthys15
Acreed13
Vidar5
Remus2
StealC1

Top Login URLs

Top exposed services found in the event results

  1. 1https://weathernews.jp169
  2. 2weathernews.jp154
  3. 3https://weathernews.jp/subscription/subscribe_c300.cgi130
  4. 4weathernews.jp/my/setting/cgi_ua/mylogin.cgi97
  5. 5https://weathernews.jp/my/setting/cgi_ua/mylogin.cgi82
  6. 6http://weathernews.jp/my/setting/cgi_ua/mylogin.cgi78
  7. 7weathernews.jp/subscription/subscribe_c300.cgi74
  8. 8weathernews.jp/47
  9. 9https://weathernews.jp/45
  10. 10https://weathernews.jp/s/login/43

Infostealer By Geography

Shows the distribution of Infostealer-related credential exposure events across different geographic regions. The location is determined by analyzing the metadata of the infected machines associated with each event.

Japan
Events77
United States
Events16
China
Events7
Netherlands
Events6
Australia
Events3
Singapore
Events2
Belgium
Events2
Ireland
Events2

Country Breakdown

  1. 1Japan77
  2. 2United States16
  3. 3China7
  4. 4Netherlands6
  5. 5Australia3
  6. 6Singapore2
  7. 7Belgium2
  8. 8Ireland2

Services Classification Distribution

Blast radius - closer to core = more critical infrastructure, size = credential volume

Citrix4
Cisco (AnyConnect)2
Git1

Operating System Distribution

Distribution of compromised endpoint builds

Windows 1147
Windows 11 24H2 build 26100 (64 Bit)14
Windows 11 Home 25H2 (Build 26200)6
Windows 11 Home (10.0.26100) x645
Windows 10 Enterprise x644

Leak Repository Classification

Where the exposed records currently reside

0
Named breaches
1,190
Combolist pools
6
Unattributed dumps

Disclaimer: This report includes AI-generated content. AI can make mistakes, so verify important findings independently before taking action.