Kowa Emori

3MediumInvestigatingAnnounced Updated

Ransomware delayed ordering and shipping and halted email. Phone and fax were used instead, and operations were stable by April 27. No clear sign of external data leakage was found.

This incident was imported from a dataset that compiles public announcements, and we are still checking it against the sources. Counts and causes will be updated after the check. Sources are in Japanese.

Cause
Ransomware
Occurred
2026-01-07
Operational impact
Core operations stopped

Tools for this kind of attack

Picked from the cause of the incident: tools that help you check your own systems for the same kind of weakness, or spot the warning signs.

Wazuh

Impact Local only
wazuh/wazuh

A free security platform (SIEM/XDR) that collects logs, configuration, and vulnerability data from agents on your endpoints and shows it all in one dashboard.

Purpose
Defense
Type
Self-hosted server
Difficulty
Advanced
License
CopyleftGPL-2.0(一部の構成要素は Apache-2.0)
Category
Vulnerability scanning / Forensics
Actively updatedstars17,410Last update 2026-10-24
Read the Wazuh review

Vuls

Impact Reaches others
future-architect/vuls

An agentless vulnerability scanner that checks the packages installed on a server and lists the ones affected by known CVEs.

Purpose
Defense
Type
Command line
Difficulty
Intermediate
License
CopyleftGPL-3.0
Category
Vulnerability scanning
Actively updatedstars12,302Last update 2026-10-21
Read the Vuls review

Sources

  1. ランサムウェア感染によるシステム障害発生に関するお知らせwww.emori.co.jp · Published 2026-01-07(opens in a new tab)
  2. ランサムウェア感染によるシステム障害に関する対応状況について(第4報)www.emori.co.jp · Published 2026-04-27(opens in a new tab)
  3. ランサムウェア感染によるシステム障害に関する対応状況についてwww.emori.co.jp · Published 2026-01-20(opens in a new tab)
  4. ランサムウェア感染によるシステム障害に関する対応状況について(第2報)www.emori.co.jp · Published 2026-01-26(opens in a new tab)
  5. ランサムウェア感染によるシステム障害に関する対応状況について(第3報)www.emori.co.jp · Published 2026-02-16(opens in a new tab)
  6. サイバーセキュリティ事案の収束と再発防止に向けた取り組みwww.emori.co.jp · Published 2026-02-16(opens in a new tab)