Ransomware Intelligence / Groups / everest

Ransomware group

everest

Everest is a ransomware group active since at least December 2020, known for its double-extortion tactics. The group initially operated as a typical ransomware outfit, encrypting files with strong cryptography and appending victim-specific extensions, but later shifted toward pure data extortion—threatening to sell or release stolen data without necessarily deploying encryption. Everest targets a wide range of sectors, including government, healthcare, manufacturing, and IT services, with confirmed victims in North America, Europe, and Asia. Initial access vectors include exploitation of vulnerable public-facing applications, phishing campaigns, and credential theft for remote access services. The group maintains a Tor-based leak site to publish stolen information and advertise access to compromised networks.

  • 3claims, 7 days
  • 14claims, 30 days
  • 48claims, 90 days
  • 2026-07-30first seen
  • 2026-10-12last seen

These are claims posted by the group on its leak site, counted when we first see them. They are not confirmed incidents, and we never name a victim.

Activity, last 26 weeks

New leak-site claims per week.

Week of 2026-04-20: 0Week of 2026-04-27: 0Week of 2026-05-04: 0Week of 2026-05-11: 0Week of 2026-05-18: 0Week of 2026-05-25: 0Week of 2026-06-01: 0Week of 2026-06-08: 0Week of 2026-06-15: 0Week of 2026-06-22: 0Week of 2026-06-29: 0Week of 2026-07-06: 0Week of 2026-07-13: 0Week of 2026-07-20: 0Week of 2026-07-27: 21Week of 2026-08-03: 1Week of 2026-08-10: 0Week of 2026-08-17: 5Week of 2026-08-24: 0Week of 2026-08-31: 4Week of 2026-09-07: 3Week of 2026-09-14: 0Week of 2026-09-21: 6Week of 2026-09-28: 0Week of 2026-10-05: 5Week of 2026-10-12: 3
Claims per week, oldest to newest. Each bar is a full Monday-to-Sunday week; the newest bar is the current week so far.

Sectors claimed, last 90 days

  1. Unclassified 48

Countries claimed, last 90 days

  1. Unknown 48

Vulnerabilities with known ransomware use

From CISA's Known Exploited Vulnerabilities catalog, newest first. The catalog does not attribute entries to a specific group; this is the current patch list for any ransomware operator.

Added CVE Vendor / product Vulnerability
2026-08-18 CVE-2026-59310 Broadcom VMware vCenter Broadcom VMware vCenter Path Traversal Vulnerability
2026-08-05 CVE-2026-63077 JetBrains TeamCity JetBrains TeamCity Deserialization of Untrusted Data Vulnerability
2026-07-29 CVE-2026-20316 Cisco Secure Firewall Management Center (FMC) Cisco Secure Firewall Management Center Use of Hard-coded Password Vulnerability
2026-07-14 CVE-2026-15410 SonicWall SMA1000 Appliances SonicWall SMA1000 Appliances Code Injection Vulnerability
2026-07-14 CVE-2026-15409 SonicWall SMA1000 Appliances SonicWall SMA1000 Appliances Server-Side Request Forgery Vulnerability
2026-07-01 CVE-2026-45659 Microsoft SharePoint Server Microsoft SharePoint Server Deserialization of Untrusted Data Vulnerability
2026-06-25 CVE-2026-12569 PTC Windchill and FlexPLM PTC Windchill and FlexPLM Improper Input Validation Vulnerability
2026-06-12 CVE-2026-35273 Oracle PeopleSoft Enterprise PeopleTools Oracle PeopleSoft Enterprise PeopleTools Missing Authentication for Critical Function Vulnerability

Data sources

  • Source: CISA KEV
    updated 3 hours ago
  • Source: RansomLook
    updated 3 hours ago
  • Sector, country and region labels are inferred by SecuritySnares from the published organisation name using Claude; treat them as estimates.
    not yet synced

Leak-site listings reflect claims by threat actors and are not independently verified. Victims are never named on this site unless they have disclosed the incident themselves. Read the methodology.