Sponsored by Hudson Rock – Use Hudson Rock's free cybercrime intelligence tools to learn how Infostealer infections are leading to ransomware attacks

Enjoying ransomware.live? Help us keep tracking ransomware gangs and shipping new features. Support us
Logo

Nostrum

nostrum.co.jp
Group Thegentlemen
Discovered 2026-05-06 10:08 UTC
Est. attack date 2026-04-27
Country JP
Sector
Agriculture and Food Production Education Energy & Utilities Financial Services Government & Defense Healthcare Hospitality Manufacturing Other Professional Services Retail & E-Commerce Technology Transportation

Description:

nostrum.co.jp Nostrum Corporation, based in Japan, was founded in 1991 and specializes in smartphone app development, web system development, and website construction. The company is represented by Ryoichi Jono and is registered on the J-GoodTech platform as a verified Japanese technology business. One of their flagship self-developed products is a job aptitude test preparation tool — a simulation platform replicating real SPI, TG-WEB, and similar employment exam interfaces used by major Japanese companies

DNS Records:

The following DNS records were found for the victim's domain.

WHOIS Emails
  • No emails found.
MX Records
  • kmx-nostrum.variomailprotection.net.
TXT Records
  • MS=ms56072130
  • google-site-verification=pJKSbYYF-reokET5yxPQgQrDP8UKMG55MUNInZls7q0
  • v=spf1 include:_spf.variomailprotection.net ~all
Cloud / SaaS Services Detected
Microsoft 365

Legal Disclaimer: Ransomware.live does not engage in the acquisition, exfiltration, downloading, possession, hosting, access, consultation, redistribution, or disclosure of unlawfully obtained data. This platform indexes only publicly visible information posted by ransomware operators and open web sources without accessing or obtaining the underlying stolen content. The service is provided to support public awareness, legitimate research, and cyber-resilience. No stolen personal or confidential data is collected or distributed via this site.