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Ransomware Victim Manufacturing

GMORS Co., Ltd

Ransomware attack by Underground · Disclosed June 25, 2025 · 🇹🇼 Taiwan

gmors.com

Date Disclosed
Jun 25, 2025
2025
Threat Group
Underground
26 total victims
Country
🇹🇼 Taiwan
Industry
Manufacturing

ThreatAI Analysis

Compiled from this incident record and the threat intelligence profile for Underground. Figures and technique mappings are quoted from the source data, not inferred.

About the Underground group

Underground ransomware is deployed by the Russia-based RomCom group (Storm-0978) and has victimized companies across multiple industries since July 2023 by exploiting CVE-2023-36884, encrypting files without changing extensions and deleting Volume Shadow Copies and Windows event logs in double-extortion campaigns. Underground has listed 26 victims since May 2023.

Incident Analysis

GMORS Co., Ltd was targeted by Underground ransomware, one of the most active ransomware groups in our database with 26 confirmed victims globally. The attack was disclosed on June 25, 2025, when GMORS Co., Ltd appeared on the group's dark web leak site.

GMORS Co., Ltd is based in Taiwan , operating in the Manufacturing sector. Taiwan ranks #14 globally for ransomware attacks, with 188 victims in our database.

Sector context: Manufacturing companies are frequently targeted because production downtime directly translates to financial loss. Ransomware operators exploit this time-sensitivity to demand higher ransoms and faster payment.

Underground typically employs a double extortion model: first exfiltrating sensitive data from the victim's systems, then deploying ransomware to encrypt files. Victims face two simultaneous threats — paying to restore access and paying to prevent publication of stolen data. The group's leak site publishes victim names and exfiltrated data as leverage.

Data source: This incident record is sourced from public ransomware group leak site disclosures aggregated via the ransomware.live API. Disclosure date reflects when the victim was published on the leak site, which may differ from the initial date of compromise. This platform does not publish or link to stolen data. Last data update: Sep 7, 2026 16:00 UTC.

Frequently Asked Questions

Was GMORS Co., Ltd attacked by ransomware?

Yes. GMORS Co., Ltd was listed as a victim of the Underground ransomware group on June 25, 2025. The organisation is based in Taiwan and operates in the Manufacturing sector. The disclosure appeared on the group's dark web leak site.

Which ransomware group attacked GMORS Co., Ltd?

GMORS Co., Ltd was attacked by Underground ransomware. Underground is one of the most active ransomware groups, having claimed 26 victims globally. The group typically employs a double-extortion model: encrypting the victim's files and threatening to publish stolen data.

When did the GMORS Co., Ltd ransomware attack occur?

The ransomware attack on GMORS Co., Ltd was disclosed on June 25, 2025. This date reflects when the victim was published on the threat group's leak site, which may differ from the actual date of initial compromise.

What data was stolen in the GMORS Co., Ltd ransomware attack?

The specific data stolen from GMORS Co., Ltd has not been independently verified by this platform. Ransomware groups typically exfiltrate data before encrypting systems and use the threat of publication to pressure victims. As a Manufacturing organisation, GMORS Co., Ltd likely held sensitive business data, client information, and operational records.

How can organisations protect against Underground attacks?

To defend against Underground and similar threat actors, organisations should: maintain regular offline backups tested for restoration; implement network segmentation to limit lateral movement; deploy multi-factor authentication on all remote access; use endpoint detection and response (EDR) tools; conduct regular phishing and security awareness training; and monitor threat intelligence feeds for indicators of compromise (IOCs) associated with active groups.