[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$frTIlwKbl1-0GFbpWfI-1I4IEpiPWgUAmieUBlrdE7NE":3},{"lesson":4},{"id":5,"slug":6,"article_id":7,"title":8,"body":9,"prevention":10,"framework_refs":11,"status":17,"created_at":18,"published_at":19,"article":20,"tags":24,"podcasts":37},"063a47cc-0200-4921-8ad6-1432653512a8","advanced-ransomware-deploys-post-quantum-encryption-across-hybrid-environments","ecc257e7-3db4-4307-b7f2-92663ce3bcab","Advanced ransomware deploys post-quantum encryption across hybrid environments","The Kyber ransomware demonstrates a sophisticated attack pattern where threat actors simultaneously deploy different variants across Windows and VMware ESXi systems within the same network. The Windows variant implements genuine post-quantum encryption (Kyber1024) combined with AES-CTR, making encrypted files virtually unrecoverable even with future quantum computing advances. This dual-platform approach maximizes damage by targeting both traditional workstations and critical virtualized infrastructure. The attack highlights how ransomware groups are evolving to use advanced cryptography and cross-platform deployment to eliminate all recovery options.","**Immediate actions:**\n- Implement network segmentation between Windows workstations and ESXi management networks\n- Deploy endpoint detection and response (EDR) solutions on both Windows and Linux systems\n- Verify all backup systems are properly isolated and cannot be accessed from production networks\n\n**Long-term improvements:**\n- Establish zero-trust architecture with micro-segmentation around critical virtualization infrastructure\n- Implement immutable backup solutions with air-gapped copies stored offline\n- Deploy behavioral analytics to detect simultaneous multi-platform deployment patterns\n\n**Recovery preparedness:**\n- Test backup restoration procedures regularly across all platform types\n- Maintain documented incident response procedures for hybrid ransomware attacks\n- Establish recovery time objectives for both physical and virtual infrastructure",[12,13,14,15,16],"CIS Control 11","CIS Control 12","NIST PR.DS-1","NIST PR.AC-5","NIST RC.RP-1","published","2026-04-23T03:09:45.395088+00:00","2026-04-23T03:09:45.028+00:00",{"id":7,"url":21,"slug":22,"title":23},"https:\u002F\u002Fwww.bleepingcomputer.com\u002Fnews\u002Fsecurity\u002Fkyber-ransomware-gang-toys-with-post-quantum-encryption-on-windows\u002F","kyber-ransomware-gang-toys-with-post-quantum-encryption-on-windows-5ffe18","Kyber ransomware gang toys with post-quantum encryption on Windows",[25,31],{"id":26,"name":27,"slug":28,"description":29,"color":30},"c8b843a5-d5a7-41d1-8d3b-cabded09d2ef","Data Protection","data-protection","Unencrypted data, missing DLP, poor classification","#3b82f6",{"id":32,"name":33,"slug":34,"description":35,"color":36},"f43a7f30-5046-4b10-9dba-1a704139821e","Network Segmentation","network-segmentation","Lateral movement, flat networks, missing firewalls","#06b6d4",[38],{"id":39,"date":40,"edition":41,"title":42,"audio_url":43},"d7fb0130-2b99-48dc-8475-a124f8afe7ed","2026-04-23","morning","ThreatNoir Morning Brief — April 23","https:\u002F\u002Fcdn.threatnoir.com\u002Fpodcasts\u002F2026-04-23\u002Fthreatnoir-morning-brief-2026-04-23.mp3"]