Was 瑞祥机电 (Ruixiang Jidian) hit by ransomware?

瑞祥机电 (Ruixiang Jidian) was listed by the medusalocker ransomware operation (China), and stolen data was published on the group's leak site. Darkfield tracks this disclosure with the original leak post, screenshot and group context.

Who is the medusalocker ransomware group?

medusalocker is a ransomware operator tracked by Darkfield. See the full operator dossier for its known victims, sectors targeted, IOCs and leak-site infrastructure.

What data was leaked in the 瑞祥机电 (Ruixiang Jidian) breach?

medusalocker published data attributed to 瑞祥机电 (Ruixiang Jidian). Darkfield captured the leak post and a screenshot of the listing.

Ransomware victim disclosure

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瑞祥机电 (Ruixiang Jidian)

Claimed by Medusalocker · listed 23 hours ago

Today

Age

since listed · data leaked

Status timeline

ListedSep 12, 2026
Data leakeddate unknown

At a glance

Group: Medusalocker
Status: Data leaked
Country: China
Sector: Manufacturing
Listed on leak site: Sep 12, 2026

About the victim

AI dossier — public-source company profile

瑞祥机电 is a Chinese elevator manufacturer operating under the brand 銀海 (Yinhai). The company specializes in machine-room-less (MRL) passenger elevators and manufactures OEM elevator components (car tops, bottoms, wall panels, call panels, doors) for major international brands including OTIS, KONE, Hitachi, Toshiba, and TKS. The company is based in Jiangsu Province and has export business operations.

Industry: Elevator Manufacturing & Components
Address: 黎民北路 (Limin North Road), Jiangsu Province, China

Attack summary

Severity: high — Confirmed exfiltration and encryption of manufacturing company infrastructure with operational access (NAS admin credentials). Impact on supply chain to major international elevator brands (OTIS, KONE, Hitachi, Toshiba). Loss of proprietary OEM component designs and customer data represents significant business disruption.

MedusaLocker claims to have encrypted systems and exfiltrated data from 瑞祥机电's infrastructure, including access to Synology NAS (administrative access) and IT department equipment. The group has published details of the victim's operational infrastructure, customer relationships, and business projects.

high

Data the group says was taken

AI dossier — extracted from the leak post

NAS administrative credentials/configuration
IT infrastructure details
Customer/OEM relationships (OTIS, KONE, Hitachi, Toshiba, TKS)
Export business project information
Operational systems details

What the group claims

Elevator manufacturer, brand 银海 (Yinhai). Produces machine-room-less (MRL) passenger elevators and OEMs elevator components (car top/bottom, car wall panels, COP, doors) for OTIS, KONE, Hitachi, Toshiba, TKS (蒂升). Export business (project DUBROVSKIY-2, customer 赛博). Infrastructure: Synology NAS (admin), IT dept with Epson L1118. | China, Jiangsu Province (黎民北路 / Limin North Road)

Sources

Leak posthttp://t33zoj4qwv455fog7qnb2azi5xcdxkixughmmduzbw2rtdgryqfbh6id.onion/company/baoajah/

Source

Indexed 23 hours ago

This page surfaces a public ransomware disclosure indexed by Darkfield. Original posts come from the operator's own leak site; we cross-check against ransomware.live, RansomLook and RansomWatch where applicable. Share this URL freely.

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Disclosure context

About medusalocker

MedusaLocker is a ransomware operation first publicly documented around 2019, though the activity cluster reflected in this dataset shows observed campaigns beginning in November 2022, driven primarily by financial motivation with no known ideological or hacktivist agenda. The group is believed to operate out of or with ties to Eastern Europe, functioning as a Ransomware-as-a-Service model that allows affiliates to deploy the ransomware in exchange for a share of ransom proceeds, a structure documented in a joint advisory published by CISA, FBI, FinCEN, and HHS in June 2022. MedusaLocker actors typically gain initial access through phishing emails, exploitation of vulnerable Remote Desktop Protocol configurations, and compromised network devices, subsequently deploying the ransomware payload which encrypts victim files using AES-256 combined with RSA-2048 encryption while also exfiltrating sensitive data prior to encryption to enable double extortion pressure. Based on available telemetry, the group has claimed at least 67 known victims, with targeting concentrated heavily in the United States, United Kingdom, Brazil, France, and Israel, spanning sectors including business services, manufacturing, technology, and education, consistent with the opportunistic rather than highly selective targeting pattern characteristic of RaaS affiliate programs. As of the time of writing, MedusaLocker remains an active threat with no confirmed law enforcement disruption, takedown operation, or confirmed rebrand publicly attributed to the group by major intelligence or law enforcement agencies. The group has been linked to 94 public disclosures across our corpus. First observed on a leak site on November 15, 2022; most recent post September 12, 2026. The operation is currently active.

Timeline of this disclosure

September 12, 2026瑞祥机电 (Ruixiang Jidian) listed by medusalocker on the group's public leak site

Other recent disclosures by medusalocker

medusalocker has been linked to 94 public victims on Darkfield. A sample of the most recent:

See the full medusalocker dossier →

Sector and geography

This disclosure adds to ransomware activity in the Manufacturing sector, which has 3,696 disclosures indexed across all operators we track. Geographically, 瑞祥机电 (Ruixiang Jidian) is reported in China, a country with 45 ransomware disclosures in our corpus.

If your organisation is affected

A listing by medusalocker means 瑞祥机电 (Ruixiang Jidian) appeared on a ransomware extortion site and data attributed to it has been published. If this is your organisation, or a supplier you depend on, the priority is to confirm the intrusion and contain it before the window to act closes.

Engage your incident-response team and preserve forensic evidence before remediating — do not wipe affected systems first.
Force a password reset and revoke active sessions for exposed accounts; rotate any credentials, API keys or certificates that may have been in the stolen data.
Assess regulatory notification duties (GDPR, NIS2, sector regulators) — many carry a 72-hour reporting clock from awareness.
Monitor for the data appearing on medusalocker's leak site and across paste and breach channels, and brief downstream partners who may be exposed through you.

How we know this. Darkfield monitors public ransomware leak sites continuously, archiving every new disclosure and the data later released against the victim. Each entry on this page is sourced from the operator's own publication and cross-checked against complementary OSINT feeds (RansomLook, ransomware.live, RansomWatch). We do not collect or host stolen data — only the metadata, timestamps and screenshots needed to make the public disclosure searchable and accountable. Records here are corrected when the original post is edited, retracted, or merged with another disclosure.