{"id":3801,"date":"2026-08-04T11:02:48","date_gmt":"2026-08-04T11:02:48","guid":{"rendered":"https:\/\/windowsreport.com\/se\/microsoft-avslojar-global-hotell-wi-fi-malwarekampanj\/"},"modified":"2026-08-04T11:02:48","modified_gmt":"2026-08-04T11:02:48","slug":"microsoft-avslojar-global-hotell-wi-fi-malwarekampanj","status":"publish","type":"post","link":"https:\/\/windowsreport.com\/se\/microsoft-avslojar-global-hotell-wi-fi-malwarekampanj\/","title":{"rendered":"Microsoft avsl\u00f6jar global hotell-Wi-Fi-malwarekampanj"},"content":{"rendered":"\n<p>Microsoft uppger att Midnight Blizzard riktar in sig p\u00e5 hotell- och konferens-Wi-Fi-n\u00e4tverk \u00f6ver hela v\u00e4rlden f\u00f6r att stj\u00e4la inloggningsuppgifter och leverera skadeprogram till resen\u00e4rer.<\/p>\n\n\n\n<p>Den ryskstatsst\u00f6dda hackergruppen, \u00e4ven k\u00e4nd som APT29, bedriver enligt uppgift kampanjen genom Storm-2945, en av dess associerade undergrupper.<\/p>\n\n\n\n<p>Microsoft sp\u00e5rar aktiviteten under namnet <a href=\"https:\/\/www.microsoft.com\/en-us\/security\/blog\/2026\/07\/31\/captivecrunch-midnight-blizzard-targets-travelers-worldwide-for-malware-delivery-and-credential-theft\/\" target=\"_blank\" rel=\"noopener noreferrer\">CaptiveCrunch<\/a> och tror att kampanjen har p\u00e5g\u00e5tt sedan minst maj 2026.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-attackers-compromise-captive-portal-traffic\">Angripare manipulerar captive-portaltrafik<\/h2>\n\n\n\n<p>Angriparna riktar in sig p\u00e5 hotelln\u00e4tverk som anv\u00e4nder captive portals, vilka normalt ber g\u00e4ster att logga in eller acceptera villkor innan de f\u00e5r tillg\u00e5ng till internet.<\/p>\n\n\n\n<p>Midnight Blizzard manipulerar DNS- och HTTP-trafik f\u00f6r att omdirigera anslutna enheter till skadliga webbplatser. Microsoft fann bevis f\u00f6r att angriparna kan ha \u00e4ventyrat delad n\u00e4tverksinfrastruktur snarare \u00e4n enskilda routrar eller accesspunkter.<\/p>\n\n\n\n<p>F\u00f6retaget har inte fastst\u00e4llt hur angriparna ursprungligen fick tillg\u00e5ng till de drabbade n\u00e4tverken.<\/p>\n\n\n\n<p>Hotelln\u00e4tverk har utsatts f\u00f6r liknande hot tidigare. Angripare har tidigare kapat hotellens Wi-Fi f\u00f6r att stj\u00e4la Microsoft 365-konton, och Microsoft varnade nyligen f\u00f6r n\u00e4tfiskeattacker riktade mot hotell i Japan.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-fake-microsoft-365-pages-steal-credentials\">Falska Microsoft 365-sidor stj\u00e4l inloggningsuppgifter<\/h3>\n\n\n\n<p>Offer som ansluter till det kapade Wi-Fi-n\u00e4tverket kan hamna p\u00e5 falska Microsoft 365-inloggningssidor som samlar in anv\u00e4ndarnamn och l\u00f6senord.<\/p>\n\n\n\n<p>Angriparna anv\u00e4nder ocks\u00e5 enhetskods-phishing f\u00f6r att missbruka Microsoft Entra ID-autentisering. Metoden f\u00e5r anv\u00e4ndare att ange en till synes legitim enhetskod som ger angriparna \u00e5tkomst till deras konton.<\/p>\n\n\n\n<p>Microsoft observerade att angriparna aktivt anv\u00e4nde dessa omdirigeringsmetoder fr\u00e5n och med juli.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-fake-updates-install-cornflake-malware\">Falska uppdateringar installerar skadeprogrammet CornFlake<\/h3>\n\n\n\n<p>Vissa offer ser falska webbl\u00e4sar- eller Windows-uppdateringssidor ist\u00e4llet f\u00f6r vanliga n\u00e4tfiskeformul\u00e4r.<\/p>\n\n\n\n<p>Dessa sidor anv\u00e4nder ClickFix-liknande instruktioner som \u00f6vertalar anv\u00e4ndare att kopiera kommandon, starta installationsprogram eller k\u00f6ra skadliga filer. Microsoft fann ocks\u00e5 tecken p\u00e5 att angriparna riktade in sig p\u00e5 Android-enheter med skadliga APK-paket.<\/p>\n\n\n\n<p>En av de huvudsakliga nyttolasterna \u00e4r CornFlake, en Go-baserad fj\u00e4rr\u00e5tkomsttrojan utformad f\u00f6r att uppr\u00e4tth\u00e5lla l\u00e5ngvarig \u00e5tkomst till Windows-datorer.<\/p>\n\n\n\n<p>CornFlake kan k\u00f6ra fj\u00e4rrkommandon, spela in tangenttryckningar, \u00f6vervaka urklippsaktivitet, ta sk\u00e4rmdumpar, stj\u00e4la filer, aktivera mikrofonen och webbkameran, extrahera webbl\u00e4sarl\u00f6senord och cookies, stj\u00e4la sessionsnycklar f\u00f6r Microsoft 365, \u00f6vervaka anslutna USB-enheter och samla in detaljerad systeminformation.<\/p>\n\n\n\n<p>Under installationen visar CornFlake ett falskt f\u00f6rloppsf\u00f6nster samtidigt som det kopierar sig sj\u00e4lv till mappen %AppData%. Det utger sig f\u00f6r att vara en legitim Windows-komponent med namnet Cloud Sync Service.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-cornflake-uses-several-persistence-methods\">CornFlake anv\u00e4nder flera metoder f\u00f6r best\u00e4ndighet<\/h3>\n\n\n\n<p>CornFlake kan registrera sig som en Windows-tj\u00e4nst f\u00f6r att k\u00f6ras automatiskt.<\/p>\n\n\n\n<p>Det kan ocks\u00e5 skapa startobjekt i registret, schemalagda aktiviteter och en \u00f6vervakningsprocess. \u00d6vervakningsprocessen \u00e5terst\u00e4ller andra best\u00e4ndighetsmekanismer om s\u00e4kerhetsteam tar bort en av dem.<\/p>\n\n\n\n<p>Detta tillv\u00e4gag\u00e5ngss\u00e4tt g\u00f6r skadeprogrammet sv\u00e5rare att avl\u00e4gsna helt fr\u00e5n en infekterad enhet.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-chocoshell-steals-browser-and-microsoft-credentials\">ChocoShell stj\u00e4l webbl\u00e4sar- och Microsoft-inloggningsuppgifter<\/h3>\n\n\n\n<p>Microsoft identifierade ocks\u00e5 ChocoShell, en minnesbaserad PowerShell-stj\u00e4lare av inloggningsuppgifter som anv\u00e4ndes under kampanjen.<\/p>\n\n\n\n<p>ChocoShell riktar in sig p\u00e5 webbl\u00e4sarcookies, sparade webbl\u00e4sarl\u00f6senord, Microsoft 365-tokens, Azure AD-tokens och sparade Wi-Fi-uppgifter.<\/p>\n\n\n\n<p>Eftersom ChocoShell fr\u00e4mst k\u00f6rs i minnet kan det l\u00e4mna f\u00e4rre filer f\u00f6r traditionella s\u00e4kerhetsverktyg att uppt\u00e4cka.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-attackers-manage-victims-through-fruitstone\">Angriparna hanterar offer via FruitStone<\/h3>\n\n\n\n<p>Microsoft uppt\u00e4ckte en exponerad kontrollpanel f\u00f6r angripare kallad FruitStone.<\/p>\n\n\n\n<p>Panelen gjorde det m\u00f6jligt f\u00f6r operat\u00f6rerna att hantera infekterade system, bl\u00e4ddra bland filer, k\u00f6ra PowerShell-kommandon, samla in sk\u00e4rmdumpar och granska f\u00e5ngade tangenttryckningar.<\/p>\n\n\n\n<p>Microsoft hittade ocks\u00e5 omfattande kommentarer inuti skadeprogrammets kod. Kommentarerna tyder p\u00e5 att utvecklarna kan ha anv\u00e4nt AI-verktyg n\u00e4r de skapade eller modifierade delar av skadeprogrammet.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-how-travelers-can-protect-their-devices\">S\u00e5 kan resen\u00e4rer skydda sina enheter<\/h3>\n\n\n\n<p>Resen\u00e4rer och organisationer b\u00f6r behandla hotell- och konferens-Wi-Fi som op\u00e5litligt, \u00e4ven n\u00e4r n\u00e4tverket verkar legitimt.<\/p>\n\n\n\n<p>Microsoft rekommenderar f\u00f6ljande f\u00f6rsiktighets\u00e5tg\u00e4rder:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Anv\u00e4nd mobildata, en personlig hotspot eller en hanterad f\u00f6retagsanslutning n\u00e4r det \u00e4r m\u00f6jligt.<\/li>\n\n\n\n<li>Undvik att installera webbl\u00e4saruppdateringar, Windows-uppdateringar eller s\u00e4kerhetsverktyg som erbjuds via captive portal-sidor.<\/li>\n\n\n\n<li>Anv\u00e4nd l\u00f6senordsnycklar eller andra phishing-resistenta autentiseringsmetoder.<\/li>\n\n\n\n<li>Aktivera stark multifaktorautentisering f\u00f6r viktiga konton.<\/li>\n\n\n\n<li>Inaktivera Microsoft Entra-enhetskodsautentisering om organisationen inte beh\u00f6ver den.<\/li>\n\n\n\n<li>Undvik att ange f\u00f6retagets inloggningsuppgifter n\u00e4r du registrerar dig f\u00f6r g\u00e4st-Wi-Fi.<\/li>\n\n\n\n<li>Kontakta en administrat\u00f6r om en captive portal ber anv\u00e4ndare att k\u00f6ra kommandon eller ladda ner programvara.<\/li>\n<\/ul>\n\n\n\n<p>I andra s\u00e4kerhetsnyheter <a href=\"https:\/\/windowsreport.com\/se\/microsoft-bug-bounty-utbetalningar-nar-rekordhoga-20-miljoner\/\" target=\"_blank\" rel=\"noopener noreferrer\">n\u00e5dde Microsofts bugg-bounty-utbetalningar rekordh\u00f6ga 20 miljoner dollar<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Microsoft uppger att Midnight Blizzard riktar in sig p\u00e5 hotell- och konferens-Wi-Fi-n\u00e4tverk \u00f6ver hela v\u00e4rlden f\u00f6r att stj\u00e4la inloggningsuppgifter och leverera skadeprogram till resen\u00e4rer. Den ryskstatsst\u00f6dda hackergruppen, \u00e4ven k\u00e4nd som APT29, bedriver enligt uppgift kampanjen genom Storm-2945, en av dess associerade undergrupper. Microsoft sp\u00e5rar aktiviteten under namnet CaptiveCrunch och tror att kampanjen har p\u00e5g\u00e5tt sedan [&hellip;]<\/p>\n","protected":false},"author":49,"featured_media":3802,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_enabled_clarity":"","footnotes":""},"categories":[1],"tags":[],"work":[],"class_list":["post-3801","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v28.1 (Yoast SEO v28.1) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Microsoft avsl\u00f6jar global hotell-Wi-Fi-malwarekampanj - WindowsReport SE (Swedish)<\/title>\n<meta name=\"description\" content=\"Microsoft s\u00e4ger att Midnight Blizzard kapar hotell-Wi-Fi f\u00f6r att stj\u00e4la Microsoft 365-inloggningsuppgifter och installera CornFlake malware\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/windowsreport.com\/se\/microsoft-avslojar-global-hotell-wi-fi-malwarekampanj\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Microsoft avsl\u00f6jar global hotell-Wi-Fi-malwarekampanj\" \/>\n<meta property=\"og:description\" content=\"Microsoft s\u00e4ger att Midnight Blizzard kapar hotell-Wi-Fi f\u00f6r att stj\u00e4la Microsoft 365-inloggningsuppgifter och installera CornFlake malware\" \/>\n<meta property=\"og:url\" content=\"https:\/\/windowsreport.com\/se\/microsoft-avslojar-global-hotell-wi-fi-malwarekampanj\/\" \/>\n<meta property=\"og:site_name\" content=\"WindowsReport SE (Swedish)\" \/>\n<meta property=\"article:published_time\" content=\"2026-08-04T11:02:48+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/windowsreport.com\/se\/wp-content\/uploads\/sites\/14\/2026\/08\/phishing-hotel-microsoft-365.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1280\" \/>\n\t<meta property=\"og:image:height\" content=\"801\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Milan Stanojevic\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@MilanStanojev17\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Milan Stanojevic\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"4 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/windowsreport.com\\\/se\\\/microsoft-avslojar-global-hotell-wi-fi-malwarekampanj\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/windowsreport.com\\\/se\\\/microsoft-avslojar-global-hotell-wi-fi-malwarekampanj\\\/\"},\"author\":{\"name\":\"Milan Stanojevic\",\"@id\":\"https:\\\/\\\/windowsreport.com\\\/se\\\/#\\\/schema\\\/person\\\/e3910b02e4592db47a0eb303765a3a25\"},\"headline\":\"Microsoft avsl\u00f6jar global hotell-Wi-Fi-malwarekampanj\",\"datePublished\":\"2026-08-04T11:02:48+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/windowsreport.com\\\/se\\\/microsoft-avslojar-global-hotell-wi-fi-malwarekampanj\\\/\"},\"wordCount\":759,\"commentCount\":0,\"image\":{\"@id\":\"https:\\\/\\\/windowsreport.com\\\/se\\\/microsoft-avslojar-global-hotell-wi-fi-malwarekampanj\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/windowsreport.com\\\/se\\\/wp-content\\\/uploads\\\/sites\\\/14\\\/2026\\\/08\\\/phishing-hotel-microsoft-365.jpg\",\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/windowsreport.com\\\/se\\\/microsoft-avslojar-global-hotell-wi-fi-malwarekampanj\\\/#respond\"]}],\"copyrightYear\":\"2026\",\"copyrightHolder\":{\"@id\":\"https:\\\/\\\/windowsreport.com\\\/#organization\"}},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/windowsreport.com\\\/se\\\/microsoft-avslojar-global-hotell-wi-fi-malwarekampanj\\\/\",\"url\":\"https:\\\/\\\/windowsreport.com\\\/se\\\/microsoft-avslojar-global-hotell-wi-fi-malwarekampanj\\\/\",\"name\":\"Microsoft avsl\u00f6jar global hotell-Wi-Fi-malwarekampanj - 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