Was Everest file server hit by ransomware?

Everest file server was listed by the Everest ransomware operation, 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 Everest ransomware group?

Everest 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 Everest file server breach?

Everest published data attributed to Everest file server. Darkfield captured the leak post and a screenshot of the listing.

Ransomware victim disclosure

← All victims

Everest Ransomware Group Leak Site

listed as Everest file server · Claimed by Everest · listed 10 months ago

10m

Age

since listed · data leaked

Status timeline

ListedSep 9, 2025
Data leakeddate unknown

At a glance

Group: Everest
Status: Data leaked
Sector: Technology
Listed on leak site: Sep 9, 2025

About the victim

AI dossier — public-source company profile

The victim record refers to the Everest ransomware group's own file/leak server, not a legitimate company. The leak post is an index page from the Everest group's dark-web site listing numerous claimed victims across multiple industries and countries. No legitimate company named 'Everest file server' exists as the target here.

Industry: Cybercrime / Ransomware Operations

Attack summary

Severity: low — The victim record is misidentified; it points to the Everest group's own leak-site index rather than a discrete company victim. No specific company's data volume, regulated data exposure, or operational impact can be attributed to a single target. Individual listed victims may be high/critical severity in their own right, but this record as filed is an aggregation page with no singular victim entity.

This entry does not represent an attack on a distinct company; it appears to be the Everest group's own leak portal index page, cataloguing dozens of previously published data leaks against third-party organisations. Data has been published for all listed victims.

low

Data the group says was taken

AI dossier — extracted from the leak post

Databases from multiple victim organisations
Financial records (Citizens Bank, National Money Mart)
Aviation data (Atlas Air, Collins Aerospace, Dublin Airport, Iberia Airlines)
Energy/seismic data (Petrobras, Svenska kraftnät, Parque Eólico Toabré)
Healthcare/wellness records (Arlington Occupational Health and Wellness)
Legal firm data (Katz & Doorakian, Bowles Womack)
Retail/consumer data (Under Armour, FullBeauty Brands)
Logistics and transport records (Straight Line Logistics, UD Trucks, Hyundai Elevator)
Technology company data (ASRock Rack, Super AI, Reeves IT)

Original description

AI-summarised, not from the leak post

N/A

The leak post

captured from the group's site

© 2026, All rights reserved
Citizens Bank - Database Leaked 
Evaluate a Norstella company - Database Leaked 
Studio Marchi - Studio Professionale Associato - Database Leaked 
Super AI - Database Leaked 
Complete Aircraft Group - Database Leaked 
Umiles Group - Database Leaked 
K Subsea Group - Database Leaked 
Parque Eólico Toabré - Database Leaked 
PT Brantas Abipraya - Database Leaked 
Straight Line Logistics - Database Leaked 
First Priority Group - Database Leaked 
Hyundai Elevator - Database Leaked 
UD Trucks - Database Leaked 
McDonalds India - Database Leaked 
Tsunami Tsolutions - Database Leaked 
Atlas Air: MUSE INSECURE - Database Leaked 
Iron Mountain - Database Leaked 
Hosowaka Micron Group - Database Leaked 
Shinwa Co Ltd - Database Leaked 
SIGMA Processing Group - Database Leaked 
Acu Trans Solutions LLC - Database Leaked 
GIBSIN Engineers - Database Leaked 
ASRock Rack - Database Leaked 
Reeves Information Technology - Database Leaked 
WANCHI STEEL INDUSTRIAL - Database Leaked 
GC Accounting - Database Leaked 
National Money Mart Company - Database leaked 
Virginia Records - Database Leaked 
Morgan Records Management - Database leaked 
ELC Electroconsult SpA - Databas…

Sources

Leak posthttp://ransomocmou6mnbquqz44ewosbkjk3o5qjsl3orawojexfook2j7esad.onion/news/everest

Source

Indexed 10 months 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 Everest

Everest is a financially-motivated ransomware group that emerged in September 2021, operating with a focus on profit-driven extortion campaigns against organizations primarily in the United States and Europe. The group's country of origin and specific affiliations remain undocumented in public threat intelligence reporting, though their operational patterns suggest they likely operate as an independent entity rather than a formal ransomware-as-a-service model. Limited public documentation exists regarding Everest's specific attack methodologies, initial access vectors, or technical capabilities, though their victim profile indicates they employ standard ransomware tactics targeting a diverse range of sectors including healthcare, technology, business services, and manufacturing organizations. Since their emergence, Everest has claimed responsibility for attacks against 339 victims across multiple countries, with the United States, United Kingdom, Italy, Germany, and Spain representing their primary geographic targets, though no specific high-profile incidents or major ransoms have been publicly documented by law enforcement or major security firms. As of current reporting, Everest appears to remain an active threat actor, though the limited public intelligence available suggests they operate as a lower-tier ransomware group compared to more prominent and well-documented criminal organizations. The group has been linked to 369 public disclosures across our corpus. First observed on a leak site on September 9, 2021; most recent post May 29, 2026. The operation is currently active.

Timeline of this disclosure

September 9, 2025Everest file server listed by Evereston the group's public leak site

Other recent disclosures by Everest

Everest has been linked to 369 public victims on Darkfield. A sample of the most recent:

See the full Everest dossier →

Sector and geography

This disclosure adds to ransomware activity in the Technology sector, which has 3,549 disclosures indexed across all operators we track.

If your organisation is affected

A listing by Everest means Everest file server 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 Everest'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.