{"id":67,"date":"2006-08-04T10:41:59","date_gmt":"2006-08-04T08:41:59","guid":{"rendered":"http:\/\/www.teldon.it\/home\/2006\/08\/04\/ransomware-epidemia-del-ricatto-via-malware\/"},"modified":"2017-02-06T12:46:36","modified_gmt":"2017-02-06T11:46:36","slug":"ransomware-epidemia-del-ricatto-via-malware","status":"publish","type":"post","link":"https:\/\/www.teldon.it\/home\/2006\/08\/04\/ransomware-epidemia-del-ricatto-via-malware\/","title":{"rendered":"Ransomware, epidemia del ricatto via malware"},"content":{"rendered":"<p> Il software malevolo usato per estorcere denaro agli utenti &egrave; sempre pi&ugrave; diffuso. I trojan blindano i dati sui PC infetti, rendendoli accessibili solo dopo il pagamento di un riscatto. Ed &egrave; allarme. <\/p>\n<p> A volte basta un click di troppo e cracker malintenzionati possono stringere un pesante cappio attorno al collo delle vittime: rendere inutilizzabili tutti i dati su disco rigido, crittografandoli con un algoritmo inespugnabile. Un allegato inviato via posta elettronica, un eseguibile scaricato da un sito Web: il <a href=\"http:\/\/punto-informatico.it\/p.aspx?id=1307748\" target=\"_blank\">ransomware<\/a>, la sottocategoria di software malevolo utilizzata per <strong>estorcere denaro<\/strong>, pu&ograve; nascondersi ovunque: anche nei <a href=\"http:\/\/punto-informatico.it\/p.asp?i=53903\" target=\"_blank\">programmi per cellulari<\/a>.<\/p>\n<p> L&#39;ultimo allarme arriva da <a href=\"http:\/\/www.kaspersky.com\/\" target=\"_blank\">Kaspersky Lab<\/a>, nota azienda russa specializzata in software antivirus. Le ultime generazioni di programmi utilizzati dalle organizzazioni criminali per <strong>sequestrare i computer<\/strong> di utenti del tutto ignari, secondo l&#39;esperto Aleks Gostev, &quot;utilizzano algoritmi crittografici sempre pi&ugrave; complessi e difficili da scardinare&quot;. Le aziende di sicurezza informatica, in pratica, si troverebbero attualmente con le mani legate: la vittima di un ransomware, in pratica, rischia di trovarsi costretto a pagare il <strong>riscatto<\/strong> necessario per riappropriarsi dei dati personali.<\/p>\n<p> &quot;Se gli sviluppatori di ransomware iniziassero ad utilizzare algoritmi complessi&quot;, ha detto Gostev, &quot;potremmo trovarci impotenti di fronte ad un computer in ostaggio&quot;. Per il momento, si legge su <a href=\"http:\/\/www.theregister.co.uk\/\" target=\"_blank\">The Register<\/a>, alcuni ransomware come <a href=\"http:\/\/www.viruslist.com\/en\/analysis?pubid=189678219\" target=\"_blank\">Gpcode-AG<\/a> si possono neutralizzare solo perch&eacute; utilizzano tecnologie crittografiche a 330 o 660 bit. Chiavi crittografiche pi&ugrave; complesse possono rendere <strong>estremamente complicato<\/strong> ogni tentativo di <em>cracking<\/em> e di salvataggio delle informazioni letteralmente &quot;rapite&quot;.<\/p>\n<p> Si pu&ograve; facilmente immaginare la quantit&agrave; di danni che il ransomware pu&ograve; creare in un ufficio pubblico, oppure in un qualsiasi sistema informatico destinato alla gestione di informazioni cruciali, che pure ci si augura sia adeguatamente protetto. Ma &egrave; per questo che negli Stati Uniti, ad esempio, alcuni reparti dell&#39;<a href=\"http:\/\/www.fbi.gov\/\" target=\"_blank\">FBI<\/a> stanno tenendo sotto stretto controllo il fenomeno del ransomware: per il momento, la migliore arma contro questo tipo d&#39;attacchi &egrave; quella dei <strong>backup regolari<\/strong> delle informazioni pi&ugrave; importanti salvate su computer. <\/p>\n<p> Molti attacchi hanno origine dalla Russia, secondo l&#39;esperto di sicurezza <a href=\"http:\/\/www.joestewart.org\/\" target=\"_blank\">Joe Stewart<\/a>. &quot;Alcuni ransomware costringono la vittima ad acquistare farmaci o altri prodotti su siti russi e solo successivamente forniscono la chiave d&#39;accesso per sbloccare i dati in ostaggio&quot;, ha dichiarato Stewart: &quot;I file sembrano spariti dal proprio computer, quando ad un certo punto appare un messaggio con la richiesta di riscatto&quot;.<\/p>\n<p> <em>Tommaso Lombardi<\/em> <\/p>\n<p> Fonte: <a href=\"http:\/\/punto-informatico.it\/p.aspx?id=1589179&amp;r=PI\" target=\"_blank\" title=\"PI\">Punto Informatico<\/a> &nbsp; <\/p>\n","protected":false},"excerpt":{"rendered":"<p> Il software malevolo usato per estorcere denaro agli utenti &egrave; sempre pi&ugrave; diffuso. I trojan blindano i dati sui PC infetti, rendendoli accessibili solo dopo il pagamento di un riscatto. Ed &egrave; allarme. <\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":true,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[2],"tags":[],"class_list":["post-67","post","type-post","status-publish","format-standard","hentry","category-post"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Ransomware, epidemia del ricatto via malware - TELDON Computer<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.teldon.it\/home\/2006\/08\/04\/ransomware-epidemia-del-ricatto-via-malware\/\" \/>\n<meta property=\"og:locale\" content=\"it_IT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Ransomware, epidemia del ricatto via malware - TELDON Computer\" \/>\n<meta property=\"og:description\" content=\"Il software malevolo usato per estorcere denaro agli utenti &egrave; sempre pi&ugrave; diffuso. 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