importantSYS.SOURCE: Solar• 2026-10-21T11:35:15+05:30

Vasilek Backdoor Discovered in VMware Tools via 2-Year Russian Healthcare Breach

#cyber attack #backdoor #vmware #healthcare #russia

A Belarus-aligned group, Partisan Zmiy, embedded the Vasilek backdoor in VMware Tools during a prolonged breach of a Russian healthcare organization. Russian firm Solar reported the activity, linking it to the group's 2020+ track record of industrial attacks.

A Belarus-aligned hacktivist group spent nearly two years within the network of a Russian healthcare organization.

According to a report published by Russian cybersecurity firm Solar, the activity has been attributed to a threat cluster dubbed Partisan Zmiy, which is also known as the Cyber Partisans.

Known to be active since at least 2020, the group has a track record of striking industrial

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> EMUDHRA'S CERTIFICATE AUTHORITY KEYS COMPROMISED DUE TO WEAK CRYPTOGRAPHIC IMPLEMENTATION > UNEP EMISSIONS GAP REPORT 2026: 1.5°C PARIS AGREEMENT TARGET UNACHIEVABLE > CRITICAL PHP RCE VULNERABILITIES (CVSS 9.2) PROMPT EMERGENCY SECURITY RELEASE > UNAUTHORIZED ACCESS TO UPDRAFTCENTRAL KEYS ENABLES BACKDOOR EXPLOITS ON WORDPRESS SITES > U.S. FEDERAL AGENCIES ORDERED TO REMOVE DEEPSEEK PRODUCTS AND HALT NEW ACQUISITIONS > STATE BANK OF INDIA DISCLOSES DATA LEAK INVOLVING 3,897 CUSTOMER RECORDS ON DARK WEB > CISA MANDATES PATCHES FOR EXPLOITED PLEX2SHELL, SIEMENS, AND SITEGUARD VULNERABILITIES > VASILEK BACKDOOR DISCOVERED IN VMWARE TOOLS VIA 2-YEAR RUSSIAN HEALTHCARE BREACH > PILLOWFORT PLATFORM TO CEASE OPERATIONS ON DECEMBER 4, 2026 > BATTLEZONE ONLINE: BROWSER-BASED 3D MULTIPLAYER TANK GAME WITH BZFLAG COMPATIBILITY> EMUDHRA'S CERTIFICATE AUTHORITY KEYS COMPROMISED DUE TO WEAK CRYPTOGRAPHIC IMPLEMENTATION > UNEP EMISSIONS GAP REPORT 2026: 1.5°C PARIS AGREEMENT TARGET UNACHIEVABLE > CRITICAL PHP RCE VULNERABILITIES (CVSS 9.2) PROMPT EMERGENCY SECURITY RELEASE > UNAUTHORIZED ACCESS TO UPDRAFTCENTRAL KEYS ENABLES BACKDOOR EXPLOITS ON WORDPRESS SITES > U.S. FEDERAL AGENCIES ORDERED TO REMOVE DEEPSEEK PRODUCTS AND HALT NEW ACQUISITIONS > STATE BANK OF INDIA DISCLOSES DATA LEAK INVOLVING 3,897 CUSTOMER RECORDS ON DARK WEB > CISA MANDATES PATCHES FOR EXPLOITED PLEX2SHELL, SIEMENS, AND SITEGUARD VULNERABILITIES > VASILEK BACKDOOR DISCOVERED IN VMWARE TOOLS VIA 2-YEAR RUSSIAN HEALTHCARE BREACH > PILLOWFORT PLATFORM TO CEASE OPERATIONS ON DECEMBER 4, 2026 > BATTLEZONE ONLINE: BROWSER-BASED 3D MULTIPLAYER TANK GAME WITH BZFLAG COMPATIBILITY