{"id":16921,"date":"2022-04-26T10:48:03","date_gmt":"2022-04-26T07:48:03","guid":{"rendered":"https:\/\/kutaybilen.com.tr\/?p=16921"},"modified":"2022-04-26T10:48:03","modified_gmt":"2022-04-26T07:48:03","slug":"ekran-parlakligi-ile-datalar-calinabilir","status":"publish","type":"post","link":"https:\/\/kutaybilen.com.tr\/?p=16921","title":{"rendered":"Ekran Parlakl\u0131\u011f\u0131 \u0130le Datalar \u00c7al\u0131nabilir"},"content":{"rendered":"<p>Siber g\u00fcvenlik \u015firketlerinin son y\u0131llarda a\u00e7\u0131klad\u0131\u011f\u0131 raporlar, \u00f6b\u00fcr bir bilgisayara ya da bir a\u011f ba\u011fl\u0131 olmasa bile <strong>bilgisayarlardan data \u00e7al\u0131nabilece\u011fini <\/strong>g\u00f6sterdi. Fizik\u00ee olarak yal\u0131t\u0131lan hava bo\u015fluklu bilgisayarlardan data \u00e7almak i\u00e7in ak\u0131l almaz yollar var. I\u015f\u0131k, ses, \u0131s\u0131, radyo frekanslar\u0131 yahut ultrasonik dalgalar arac\u0131l\u0131\u011f\u0131yla bilgisayarlardan veri \u00e7al\u0131nabiliyor.\u00a0<\/p>\n<p>Birka\u00e7 y\u0131l evvel yay\u0131nlanan bir rapor, hava bo\u015fluklu bilgisayarlardan fanlar\u0131 arac\u0131l\u0131\u011f\u0131yla bilgi \u00e7al\u0131nabilece\u011fini g\u00f6stermi\u015f. Yap\u0131lan yeni bir a\u00e7\u0131klama, bilgisayarlar\u0131n <strong>ekranlar\u0131n\u0131n parlakl\u0131\u011f\u0131 ile bilgilerin ele ge\u00e7irilebilece\u011fini <\/strong>g\u00f6steriyor.\u00a0<\/p>\n<p>\u0130srail\u2019de bulunan Ben Gurion \u00dcniversitesi\u2019ndeki g\u00fcvenlik ara\u015ft\u0131rma merkezinin lideri Mordechai Gui, a\u011f irtibat\u0131na gerektirmeyen, rastgele bir ayg\u0131tla fizik\u00ee olarak ba\u011flant\u0131 kurmadan hava bo\u015fluklu bilgisayarlardan veri \u00e7alabilecek<strong> yeni bir bilinmeyen optik kanal<\/strong> tasarlad\u0131.\u00a0<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.webtekno.com\/images\/editor\/default\/0002\/43\/de69bd6117f4f5e83c836731d02e646af0237260.jpeg\"\/><\/p>\n<p>Gui, tasarlad\u0131\u011f\u0131 data ele ge\u00e7irme tekni\u011fi ile ilgili olarak, \u201c<em>Bu z\u0131mn\u00ee kanal g\u00f6r\u00fcnmezdir. Kullan\u0131c\u0131 bilgisayarda \u00e7al\u0131\u015f\u0131rken vazife yapabilir. G\u00fcvenli\u011fi ihlal edilmi\u015f bilgisayara berbat gayeli yaz\u0131l\u0131m ekran parlakl\u0131\u011f\u0131 i\u00e7ine mod\u00fcle edilebilir ve kullan\u0131c\u0131 bu yaz\u0131l\u0131m\u0131 g\u00f6remez<\/em>\u201d dedi.<\/p>\n<p>Elde edilen datalar\u0131n kodlanmas\u0131 ve kodun \u00e7\u00f6z\u00fclmesinin gerisinde temel fikir, evvelki durumlara benzerlik g\u00f6steriyor. Mak\u00fbs hedefli yaz\u0131l\u0131m, toplanan bilgileri <strong>bir bayt ak\u0131\u015f\u0131 olarak kodlar <\/strong>ve daha sonra 1 ve 0 sinyali olarak mod\u00fcle eder.<\/p>\n<p>Bu berbat hedefli yaz\u0131l\u0131m bilgi elde etmek i\u00e7in LCD ekran\u0131n parlakl\u0131\u011f\u0131ndaki<strong> g\u00f6zle g\u00f6r\u00fclemeyecek k\u00fc\u00e7\u00fck de\u011fi\u015fiklikleri <\/strong>kullan\u0131r. Gui, LCD ekranlarda her pikselin gerekli RGB renklerinin kombinasyonunu sunaca\u011f\u0131n\u0131 ve her pikselin RGB renk bile\u015fenini biraz de\u011fi\u015ftirece\u011fini s\u00f6yl\u00fcyor. Gui, \u201c<em>Bu de\u011fi\u015fiklikler nispeten k\u00fc\u00e7\u00fck olduklar\u0131 ve ekran yenileme surat\u0131 kadar s\u00fcratli ger\u00e7ekle\u015ftikleri i\u00e7in g\u00f6r\u00fcnmezdir<\/em>\u201d dedi.\u00a0<\/p>\n<p>Sald\u0131rganlar, ekran parlakl\u0131\u011f\u0131ndan elde edilecek verileri\u00a0<strong>g\u00fcvenlik kameras\u0131 yahut ak\u0131ll\u0131 telefon kameras\u0131 <\/strong>ile bilgisayar\u0131n ekran\u0131n\u0131n g\u00f6r\u00fcnt\u00fc kayd\u0131n\u0131 kullanarak toplayabilirler. Daha sonra imaj s\u00fcrece teknikleri kullan\u0131larak d\u0131\u015far\u0131 s\u0131zan bilgiler yine olu\u015fturulabilir.\u00a0<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.webtekno.com\/images\/editor\/default\/0002\/43\/d44cd321b6325f66b89a875420617d55ad0c2333.jpeg\"\/><\/p>\n<p><b>Daha evvel geli\u015ftirilen \u00e7evrimd\u0131\u015f\u0131 bilgisayarlardan veri s\u0131zd\u0131rma yollar\u0131<\/b><\/p>\n<p>Ben Gurion \u00dcniversitesi\u2019nden ara\u015ft\u0131rmac\u0131lar, daha \u00f6ncede hava bo\u015fluklu bilgisayarlar\u0131 hedefleyen teknikler geli\u015ftirdiler. Ben Gurion\u2019daki ara\u015ft\u0131rmac\u0131lar taraf\u0131ndan geli\u015ftirilen <strong>data ele ge\u00e7irme teknikleri <\/strong>\u015f\u00f6yle:\u00a0<\/p>\n<ul>\n<li>PowerHammer, hava bo\u015fluklu bilgisayarlardan g\u00fc\u00e7 \u00e7izgileri \u00fczerinden bilgi elde etmeye yar\u0131yor.<\/li>\n<li>MOSQUITO ile birebir odaya yerle\u015ftirilen iki bilgisayar, ultrasonik dalgalar yoluyla sakl\u0131 data al\u0131\u015fveri\u015fi yapabilir.<\/li>\n<li>aIR-Jumper, gece g\u00f6r\u00fc\u015f i\u00e7in kullan\u0131lan k\u0131z\u0131l\u00f6tesi donan\u0131ml\u0131 kameralar ile bilgisayarlardan veri elde edilmesini sa\u011fl\u0131yor.<\/li>\n<li>MAGNETO ve ODINI isimli teknikler, hava bo\u015fluklu bilgisayarlar ve yak\u0131nlar\u0131ndaki ak\u0131ll\u0131 telefonlar ortas\u0131nda i\u015flemci taraf\u0131ndan \u00fcretilen manyetik alan\u0131 kullanarak z\u0131mn\u00ee bir kanal olu\u015fturur.\u00a0<\/li>\n<li>USBee ak\u0131n tekni\u011finde ise bilgisayardaki bulunan USB giri\u015flerinin radyo frekanslar\u0131 kullan\u0131l\u0131r.\u00a0<\/li>\n<li>DiskFiltration ile hedeflenen hava bo\u015fluklu bilgisayar\u0131n sabit diskinden yay\u0131lan ses sinyallerini kullan\u0131l\u0131r.\u00a0<\/li>\n<li>BitWhisper ise \u015fifreleri ve g\u00fcvenlik anahtarlar\u0131n\u0131 gizlemek i\u00e7in \u0131s\u0131 de\u011fi\u015fimine dayan\u0131r.\u00a0<\/li>\n<li>AirHopper ise klavyenin vuru\u015flar\u0131n\u0131 yakalamak i\u00e7in ekran kart\u0131n\u0131 bir FM vericisine d\u00f6n\u00fc\u015ft\u00fcr\u00fcr.\u00a0<\/li>\n<li>Fansmitter, bilgileri elde etmek i\u00e7in bilgisayar\u0131n fan\u0131ndan yay\u0131lan g\u00fcr\u00fclt\u00fcy\u00fc kullan\u0131r.<\/li>\n<\/ul>\n<div> <\/div>\n","protected":false},"excerpt":{"rendered":"<p>Siber g\u00fcvenlik \u015firketlerinin son y\u0131llarda a\u00e7\u0131klad\u0131\u011f\u0131 raporlar, \u00f6b\u00fcr bir bilgisayara ya da bir a\u011f ba\u011fl\u0131 olmasa bile bilgisayarlardan data &#8230;<\/p>\n","protected":false},"author":1,"featured_media":16922,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[854],"tags":[1357,1300,539,2379],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/kutaybilen.com.tr\/index.php?rest_route=\/wp\/v2\/posts\/16921"}],"collection":[{"href":"https:\/\/kutaybilen.com.tr\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kutaybilen.com.tr\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kutaybilen.com.tr\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/kutaybilen.com.tr\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=16921"}],"version-history":[{"count":1,"href":"https:\/\/kutaybilen.com.tr\/index.php?rest_route=\/wp\/v2\/posts\/16921\/revisions"}],"predecessor-version":[{"id":16923,"href":"https:\/\/kutaybilen.com.tr\/index.php?rest_route=\/wp\/v2\/posts\/16921\/revisions\/16923"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/kutaybilen.com.tr\/index.php?rest_route=\/wp\/v2\/media\/16922"}],"wp:attachment":[{"href":"https:\/\/kutaybilen.com.tr\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=16921"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kutaybilen.com.tr\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=16921"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kutaybilen.com.tr\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=16921"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}