{"id":3203,"date":"2026-01-19T17:15:58","date_gmt":"2026-01-19T16:15:58","guid":{"rendered":"https:\/\/cyberoperations.hu\/?p=3203"},"modified":"2026-01-19T17:15:58","modified_gmt":"2026-01-19T16:15:58","slug":"amikor-a-bitlocker-valik-fegyverre-tanulsagok-a-roman-vizugyi-hatosag-elleni-ransomware-tamadasbol","status":"publish","type":"post","link":"https:\/\/cyberoperations.hu\/sk\/amikor-a-bitlocker-valik-fegyverre-tanulsagok-a-roman-vizugyi-hatosag-elleni-ransomware-tamadasbol\/","title":{"rendered":"Ke\u010f sa BitLocker stane zbra\u0148ou \u2013 ponau\u010denia z \u00fatoku ransomv\u00e9ru na rumunsk\u00fd vodohospod\u00e1rsky \u00farad"},"content":{"rendered":"<p data-start=\"150\" data-end=\"597\">Tento t\u00fd\u017ede\u0148 vy\u0161iel najavo obzvl\u00e1\u0161\u0165 pou\u010dn\u00fd \u2013 a alarmuj\u00faci \u2013 incident v oblasti kybernetickej bezpe\u010dnosti: <strong data-start=\"249\" data-end=\"310\">Rumunsk\u00fd n\u00e1rodn\u00fd vodohospod\u00e1rsky \u00farad zasiahnut\u00fd \u00fatokom ransomv\u00e9ru<\/strong>, teda ten <strong data-start=\"320\" data-end=\"361\"><span class=\"hover:entity-accent entity-underline inline cursor-pointer align-baseline\"><span class=\"whitespace-normal\">Administra\u021bia Na\u021bional\u0103 Apele Rom\u00e2ne<\/span><\/span><\/strong> organiz\u00e1cie. \u00datok bol vykonan\u00fd pomocou met\u00f3dy zalo\u017eenej na BitLockeri a hoci OT syst\u00e9my riadiace vod\u00e1rensk\u00fa infra\u0161trukt\u00faru neboli nakoniec ohrozen\u00e9, po\u0161kodenie IT prostredia samo o sebe predstavuje v\u00e1\u017ene prev\u00e1dzkov\u00e9 a regula\u010dn\u00e9 riziko.<\/p>\n<p data-start=\"599\" data-end=\"1068\">Pod\u013ea dostupn\u00fdch inform\u00e1ci\u00ed pribli\u017ene <strong data-start=\"650\" data-end=\"671\">1000 pracovn\u00fdch stan\u00edc<\/strong> stala sa nepou\u017eite\u013enou a <strong data-start=\"699\" data-end=\"742\">Postihnut\u00fdch bolo 10 z 11 region\u00e1lnych kancel\u00e1ri\u00ed<\/strong>. Syst\u00e9my GIS, datab\u00e1zy, e-mailov\u00e9 slu\u017eby a webov\u00e9 servery boli nefunk\u010dn\u00e9, zatia\u013e \u010do \u00fato\u010dn\u00edci po\u017eadovali v\u00fdkupn\u00e9. Tento incident op\u00e4\u0165 jasne uk\u00e1zal, \u017ee pre organiz\u00e1ciu prev\u00e1dzkuj\u00facu kritick\u00fa infra\u0161trukt\u00faru sta\u010d\u00ed samotn\u00e9 zlyhanie IT syst\u00e9mov na ohrozenie vykon\u00e1vania z\u00e1kladn\u00fdch \u00faloh.<\/p>\n<p data-start=\"1070\" data-end=\"1609\">Jedn\u00fdm z najd\u00f4le\u017eitej\u0161\u00edch ponau\u010den\u00ed pr\u00edbehu v\u0161ak nie je samotn\u00fd fakt \u00fatoku, ale <strong data-start=\"1150\" data-end=\"1176\">ako sa to stalo<\/strong>. \u00dato\u010dn\u00edci nepracovali s klasick\u00fdm, \u013eahko rozpoznate\u013en\u00fdm ransomv\u00e9rom, ale ako zbra\u0148 pou\u017eili legit\u00edmnu syst\u00e9mov\u00fa funkciu \u2013 \u0161ifrovanie disku BitLocker. Po infiltr\u00e1cii sa v sieti pohybovali later\u00e1lne a n\u00e1sledne aktivovali \u0161ifrovanie lok\u00e1lne. Tradi\u010dn\u00e9 antiv\u00edrusov\u00e9 a EDR rie\u0161enia s\u00fa v tejto situ\u00e1cii prakticky bezmocn\u00e9: \u201enevidia\u201d skuto\u010dn\u00fd malv\u00e9r, preto\u017ee je spusten\u00e1 vstavan\u00e1 funkcia syst\u00e9mu Windows.<\/p>\n<p data-start=\"1611\" data-end=\"2020\">Toto je presne ten scen\u00e1r, v ktorom <strong data-start=\"1652\" data-end=\"1707\">reakt\u00edvna ochrana zalo\u017een\u00e1 na podpisoch nie je pripraven\u00e1<\/strong>. V \u010dase, ke\u010f sa spust\u00ed upozornenie EDR, s\u00fa d\u00e1ta u\u017e za\u0161ifrovan\u00e9, obchodn\u00e9 oper\u00e1cie sa zastavili a organiz\u00e1cia stoj\u00ed pred vo\u013ebou: zaplati\u0165 alebo za\u010da\u0165 zd\u013ahav\u00fd proces obnovy. V pr\u00edpade in\u0161tit\u00facie prev\u00e1dzkuj\u00facej kritick\u00fa infra\u0161trukt\u00faru v r\u00e1mci NIS2 nejde len o technick\u00fa, ale aj <strong data-start=\"1978\" data-end=\"2016\">regula\u010dn\u00e9 a zodpovednostn\u00e9 ot\u00e1zky<\/strong> tie\u017e.<\/p>\n<p data-start=\"2022\" data-end=\"2580\">A tu prich\u00e1dza skuto\u010dn\u00e1 ot\u00e1zka \u201e\u010do keby\u201d. <strong data-start=\"2074\" data-end=\"2120\">skuto\u010dne prevent\u00edvna ochrana koncov\u00fdch bodov zalo\u017een\u00e1 na umelej inteligencii<\/strong> v tomto pr\u00edpade by zasiahol ove\u013ea sk\u00f4r. <strong data-start=\"2178\" data-end=\"2219\"><span class=\"hover:entity-accent entity-underline inline cursor-pointer align-baseline\"><span class=\"whitespace-normal\">Hlbok\u00fd in\u0161tinkt<\/span><\/span><\/strong> Napr\u00edklad jeho technol\u00f3gia hlbok\u00e9ho u\u010denia nerob\u00ed rozhodnutia na z\u00e1klade behavior\u00e1lnych vzorcov alebo zn\u00e1mych podpisov, ale sk\u00f4r analyzuje matematick\u00e9 charakteristiky k\u00f3du a... <strong data-start=\"2361\" data-end=\"2409\">blokuje \u00fatok pred jeho vykonan\u00edm<\/strong>. To znamen\u00e1, \u017ee nezn\u00e1my ransomv\u00e9r s nulovou ochranou \u2013 vr\u00e1tane \u00fatokov, ktor\u00e9 zneu\u017e\u00edvaj\u00fa BitLocker \u2013 jednoducho nedosiahne bod, kedy by sp\u00f4sobil ak\u00e9ko\u013evek \u0161kody.<\/p>\n<p data-start=\"2582\" data-end=\"2973\">\u010eal\u0161ou v\u00fdhodou rie\u0161enia je, \u017ee <strong data-start=\"2614\" data-end=\"2636\">NGAV a EDR v jednom<\/strong>, s extr\u00e9mne n\u00edzkou mierou falo\u0161n\u00fdch poplachov, ktor\u00e1 nepre\u0165a\u017euje t\u00edmy SOC a je schopn\u00e1 robi\u0165 rozhodnutia aj v offline prostred\u00ed. Ak toto v\u0161etko rob\u00edte v <strong data-start=\"2784\" data-end=\"2825\"><span class=\"hover:entity-accent entity-underline inline cursor-pointer align-baseline\"><span class=\"whitespace-normal\">Hviezdna kybernetika<\/span><\/span><\/strong> Ak ho dopln\u00edme webovou platformou XDR, z\u00edskame kompletn\u00fd obraz o pokusoch o \u00fatok nielen na koncov\u00fdch bodoch, ale aj na strane siete a servera.<\/p>\n<p data-start=\"2975\" data-end=\"3268\">Pr\u00edpad rumunsk\u00e9ho vodohospod\u00e1rskeho \u00faradu je dokonal\u00fdm pr\u00edkladom toho, ako <strong data-start=\"3035\" data-end=\"3082\">Ak BitLocker u\u017e \u0161ifruje, je u\u017e neskoro<\/strong>. V tomto pr\u00edpade neexistuj\u00fa \u017eiadne d\u00e1ta, \u017eiadny syst\u00e9m, \u017eiadna prev\u00e1dzka \u2013 iba kr\u00edzov\u00fd mana\u017ement. Pri prevent\u00edvnom pr\u00edstupe v\u0161ak nedoch\u00e1dza k strate d\u00e1t, k v\u00fdkupn\u00e9mu ani k n\u00faten\u00e9mu vypnutiu.<\/p>\n<p data-start=\"3270\" data-end=\"3505\" data-is-last-node=\"\" data-is-only-node=\"\">Ot\u00e1zkou dnes u\u017e nie je, \u010di je organiz\u00e1cia pod \u00fatokom. Ot\u00e1zkou je, \u010di <strong data-start=\"3347\" data-end=\"3396\">V\u0161imneme si to v\u010das \u2013 alebo sa to nestane v\u00f4bec?<\/strong>. Pre kritick\u00e9 infra\u0161trukt\u00fary a organiz\u00e1cie ovplyvnen\u00e9 NIS2 to nie je technologick\u00fd luxus, ale z\u00e1kladn\u00e1 po\u017eiadavka.<\/p>","protected":false},"excerpt":{"rendered":"<p>A h\u00e9ten egy k\u00fcl\u00f6n\u00f6sen tanuls\u00e1gos \u2013 \u00e9s egyben riaszt\u00f3 \u2013 kiberbiztons\u00e1gi incidens l\u00e1tott napvil\u00e1got: ransomware t\u00e1mad\u00e1s \u00e9rte a rom\u00e1n Nemzeti [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":3204,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[1],"tags":[],"class_list":["post-3203","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-egyeb"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.4 (Yoast SEO v27.7) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Amikor a BitLocker v\u00e1lik fegyverr\u00e9 \u2013 tanuls\u00e1gok a rom\u00e1n v\u00edz\u00fcgyi hat\u00f3s\u00e1g elleni ransomware t\u00e1mad\u00e1sb\u00f3l - Cyber Operations Group Kft.<\/title>\n<meta name=\"description\" content=\"AI-alap\u00fa kiberv\u00e9delmi megold\u00e1sok kkv-k \u00e9s nagyv\u00e1llalatok sz\u00e1m\u00e1ra. 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