{"id":72851,"date":"2020-03-05T02:41:57","date_gmt":"2020-03-04T23:41:57","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/vozmozhnost-registraczii-fishingovyh-domenov-s-pohozhimi-unicode-simvolami-v-imeni"},"modified":"2020-03-05T02:41:57","modified_gmt":"2020-03-04T23:41:57","slug":"vozmozhnost-registraczii-fishingovyh-domenov-s-pohozhimi-unicode-simvolami-v-imeni","status":"publish","type":"post","link":"https:\/\/prohoster.info\/pt\/blog\/news\/vozmozhnost-registraczii-fishingovyh-domenov-s-pohozhimi-unicode-simvolami-v-imeni","title":{"rendered":"Possibilidade de registro de dom\u00ednios de phishing com s\u00edmbolos unicode semelhantes no nome","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Pesquisadores da empresa Soluble <noindex><a rel=\"nofollow\" href=\"https:\/\/www.soluble.ai\/blog\/public-disclosure-emoji-to-zero-day\">identificaram<\/a><\/noindex> um novo m\u00e9todo de registro de dom\u00ednios com <noindex><a rel=\"nofollow\" href=\"https:\/\/ru.wikipedia.org\/wiki\/%D0%9E%D0%BC%D0%BE%D0%B3%D0%BB%D0%B8%D1%84\">om\u00f3grafos<\/a><\/noindex>, que parecem semelhantes a outros dom\u00ednios, mas diferem na presen\u00e7a de s\u00edmbolos com significados diferentes. Esses dom\u00ednios internacionalizados (<noindex><a rel=\"nofollow\" href=\"https:\/\/ru.wikipedia.org\/wiki\/IDN\">IDN<\/a><\/noindex>) podem \u00e0 primeira vista n\u00e3o se distinguir de dom\u00ednios de empresas e servi\u00e7os conhecidos, permitindo seu uso para phishing, inclusive obtendo certificados TLS v\u00e1lidos.<\/p>\n<p>A substitui\u00e7\u00e3o cl\u00e1ssica atrav\u00e9s de um dom\u00ednio IDN semelhante h\u00e1 muito \u00e9 bloqueada em navegadores e registradores, devido \u00e0 proibi\u00e7\u00e3o de misturar caracteres de diferentes alfabetos. Por exemplo, n\u00e3o ser\u00e1 poss\u00edvel criar um dom\u00ednio substituto aple.com (&#171;xn--pple-43d.com&#187;) simplesmente substituindo a letra latina &#171;a&#187; (U+0061) pela letra cir\u00edlica &#171;\u0430&#187; (U+0430), pois a mistura de letras de diferentes alfabetos no dom\u00ednio n\u00e3o \u00e9 permitida. Em 2017, foi <noindex><a rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=46394\">encontrado<\/a><\/noindex> um m\u00e9todo para contornar essa prote\u00e7\u00e3o atrav\u00e9s do uso de apenas s\u00edmbolos unicode no dom\u00ednio, sem o uso de caracteres latinos (por exemplo, usando s\u00edmbolos de uma l\u00edngua com caracteres semelhantes aos latinos).<\/p>\n<p>Agora foi encontrado mais um m\u00e9todo de contorno, baseado no fato de que os registradores bloqueiam a mistura de latim e Unicode, mas se os s\u00edmbolos Unicode especificados no dom\u00ednio pertencem ao grupo de caracteres latinos, tal mistura \u00e9 permitida, uma vez que os s\u00edmbolos pertencem ao mesmo alfabeto. O problema \u00e9 que na extens\u00e3o <noindex><a rel=\"nofollow\" href=\"https:\/\/en.wikipedia.org\/wiki\/IPA_Extensions\">Unicode Latin IPA<\/a><\/noindex> existem om\u00f3grafos que se assemelham a outros caracteres do alfabeto latino:<br \/>\no s\u00edmbolo &#171;<noindex><a rel=\"nofollow\" href=\"https:\/\/en.wikipedia.org\/wiki\/Latin_alpha\">&#593;<\/a><\/noindex>&#187; lembra &#171;a&#187;, &#171;<noindex><a rel=\"nofollow\" href=\"https:\/\/en.wikipedia.org\/wiki\/Voiced_velar_stop\">&#609;<\/a><\/noindex>&#187; &#8212; &#171;g&#187;, &#171;<noindex><a rel=\"nofollow\" href=\"https:\/\/en.wikipedia.org\/wiki\/Latin_iota\">&#617;<\/a><\/noindex>&#187; &#8212; &#171;l&#187;. <\/p>\n<p><center><noindex><a rel=\"nofollow\" href=\"https:\/\/www.soluble.ai\/hs-fs\/hubfs\/homoglyph4.jpeg?width=888&#038;name=homoglyph4.jpeg\"><img decoding=\"async\" alt=\"Possibilidade de registro de dom\u00ednios de phishing com s\u00edmbolos unicode semelhantes no nome\" src=\"\/wp-content\/uploads\/2020\/03\/4c7ab1abba84d76486b24d2c9e34017e.jpeg\" style=\"display:block;margin: 0 auto;\" \/><\/a><\/noindex><\/center><\/p>\n<p>A possibilidade de registrar dom\u00ednios em que o latino \u00e9 misturado com os s\u00edmbolos Unicode especificados foi identificada no registrador Verisign (outros registradores n\u00e3o foram testados), e subdom\u00ednios puderam ser criados nos servi\u00e7os da Amazon, Google, Wasabi e DigitalOcean. O problema foi identificado em novembro do ano passado e, apesar das notifica\u00e7\u00f5es enviadas, tr\u00eas meses depois foi resolvido apenas na Amazon e Verisign.<\/p>\n<p>No experimento, os pesquisadores gastaram 400 d\u00f3lares para registrar os seguintes dom\u00ednios na Verisign:<\/p>\n<ul>\n<li> am&#593;zon.com\n<li> ch&#593;se.com\n<li> s&#593;lesforce.com\n<li> &#609;m&#593;il.com\n<li> &#593;pp&#617;e.com\n<li> eb&#593;y.com\n<li> &#609;static.com\n<li> ste&#593;mpowered.com\n<li> the&#609;uardian.com\n<li> thever&#609;e.com\n<li> washin&#609;tonpost.com\n<li> p&#593;yp&#593;&#617;.com\n<li> w&#593;lm&#593;rt.com\n<li> w&#593;s&#593;bisys.com\n<li> y&#593;hoo.com\n<li> c&#617;oudf&#617;are.com\n<li> de&#617;&#617;.com\n<li> gm&#593;i&#617;.com\n<li> goo&#609;leapis.com\n<li> huffin&#609;tonpost.com\n<li> insta&#609;ram.com\n<li> microsofton&#617;ine.com\n<li> &#593;m&#593;zon&#593;ws.com\n<li> &#593;ndroid.com\n<li> netf&#617;ix.com\n<li> nvidi&#593;.com\n<li> &#609;oog&#617;e.com\n<\/ul>\n<p>Os pesquisadores tamb\u00e9m lan\u00e7aram <noindex><a rel=\"nofollow\" href=\"https:\/\/homoglyphs.storage.googleapis.com\">um servi\u00e7o online<\/a><\/noindex> para verificar seus dom\u00ednios em busca de poss\u00edveis alternativas com hom\u00f3grafos, incluindo a verifica\u00e7\u00e3o de dom\u00ednios j\u00e1 registrados e certificados TLS com nomes semelhantes. No que diz respeito aos certificados HTTPS, foram verificados 300 dom\u00ednios com hom\u00f3grafos atrav\u00e9s dos logs de Certifica\u00e7\u00e3o de Transpar\u00eancia, dos quais 15 tiveram a gera\u00e7\u00e3o de certificados registrada. <\/p>\n<p>Os navegadores atuais Chrome e Firefox exibem esses dom\u00ednios na barra de endere\u00e7os com a nota\u00e7\u00e3o prefixada &#171;xn--&#171;, no entanto, nos links, os dom\u00ednios aparecem sem transforma\u00e7\u00e3o, o que pode ser utilizado para inserir p\u00e1ginas de recursos maliciosos ou links, sob o pretexto de serem carregados de sites leg\u00edtimos. Por exemplo, em um dos dom\u00ednios identificados com hom\u00f3grafos, foi registrado a dissemina\u00e7\u00e3o de uma variante maliciosa da biblioteca jQuery.<\/p>\n<p><noindex><a rel=\"nofollow\" name=\"link\"><\/a><\/noindex><\/p>\n<p>Fonte: <a \ncontent=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=52479\">opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0418\u0441\u0441\u043b\u0435\u0434\u043e\u0432\u0430\u0442\u0435\u043b\u0438 \u0438\u0437 \u043a\u043e\u043c\u043f\u0430\u043d\u0438\u0438 Soluble \u0432\u044b\u044f\u0432\u0438\u043b\u0438 \u043d\u043e\u0432\u044b\u0439 \u0441\u043f\u043e\u0441\u043e\u0431 \u0440\u0435\u0433\u0438\u0441\u0442\u0440\u0430\u0446\u0438\u0438 \u0434\u043e\u043c\u0435\u043d\u043e\u0432 \u0441 \u043e\u043c\u043e\u0433\u043b\u0438\u0444\u0430\u043c\u0438, \u0432\u043d\u0435\u0448\u043d\u0435 \u043f\u043e\u0445\u043e\u0436\u0438\u043c\u0438 \u043d\u0430 \u0434\u0440\u0443\u0433\u0438\u0435 \u0434\u043e\u043c\u0435\u043d\u044b, \u043d\u043e \u0444\u0430\u043a\u0442\u0438\u0447\u0435\u0441\u043a\u0438 \u043e\u0442\u043b\u0438\u0447\u0430\u044e\u0449\u0438\u0435\u0441\u044f \u0438\u0437-\u0437\u0430 \u043d\u0430\u043b\u0438\u0447\u0438\u044f \u0441\u0438\u043c\u0432\u043e\u043b\u043e\u0432 \u0441 \u0438\u043d\u044b\u043c \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u0435\u043c. \u041f\u043e\u0434\u043e\u0431\u043d\u044b\u0435 \u0438\u043d\u0442\u0435\u0440\u043d\u0430\u0446\u0438\u043e\u043d\u0430\u043b\u0438\u0437\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u044b\u0435 \u0434\u043e\u043c\u0435\u043d\u044b (IDN) \u043c\u043e\u0433\u0443\u0442 \u043d\u0430 \u043f\u0435\u0440\u0432\u044b\u0439 \u0432\u0437\u0433\u043b\u044f\u0434 \u043d\u0435 \u043e\u0442\u043b\u0438\u0447\u0430\u0442\u044c\u0441\u044f \u043e\u0442 \u0434\u043e\u043c\u0435\u043d\u043e\u0432 \u0438\u0437\u0432\u0435\u0441\u0442\u043d\u044b\u0445 \u043a\u043e\u043c\u043f\u0430\u043d\u0438\u0439 \u0438 \u0441\u0435\u0440\u0432\u0438\u0441\u043e\u0432, \u0447\u0442\u043e \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u0435\u0442 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u044c \u0438\u0445 \u0434\u043b\u044f \u0444\u0438\u0448\u0438\u043d\u0433\u0430, \u0432 \u0442\u043e\u043c \u0447\u0438\u0441\u043b\u0435 \u043f\u043e\u043b\u0443\u0447\u0430\u044f \u0434\u043b\u044f \u043d\u0438\u0445 \u043a\u043e\u0440\u0440\u0435\u043a\u0442\u043d\u044b\u0435 TLS-\u0441\u0435\u0440\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u044b. [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":72852,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-72851","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.3 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u0418\u0441\u0441\u043b\u0435\u0434\u043e\u0432\u0430\u0442\u0435\u043b\u0438 \u0438\u0437 \u043a\u043e\u043c\u043f\u0430\u043d\u0438\u0438 Soluble \u0432\u044b\u044f\u0432\u0438\u043b\u0438 \u043d\u043e\u0432\u044b\u0439 \u0441\u043f\u043e\u0441\u043e\u0431 \u0440\u0435\u0433\u0438\u0441\u0442\u0440\u0430\u0446\u0438\u0438 \u0434\u043e\u043c\u0435\u043d\u043e\u0432 \u0441\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"author\" 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