{"id":6385,"date":"2021-04-09T08:27:13","date_gmt":"2021-04-09T08:27:13","guid":{"rendered":"https:\/\/198.27.90.141\/?p=6385"},"modified":"2026-09-29T18:35:07","modified_gmt":"2026-09-29T18:35:07","slug":"cdr-content-disarm-reconstruction-o-que-e-como-funciona","status":"publish","type":"post","link":"https:\/\/gatefy.com\/pt-br\/blog\/cdr-content-disarm-reconstruction-o-que-e-como-funciona\/","title":{"rendered":"O que \u00e9 CDR (Content Disarm &#038; Reconstruction)?"},"content":{"rendered":"<p>O CDR \u00e9 uma solu\u00e7\u00e3o de seguran\u00e7a da informa\u00e7\u00e3o usada para prote\u00e7\u00e3o contra c\u00f3digos maliciosos que est\u00e3o contidos em documentos e anexos. Por isso, o CDR \u00e9 tamb\u00e9m conhecido como uma tecnologia de Threat Extraction, ou seja, uma ferramenta de extra\u00e7\u00e3o de amea\u00e7as.<\/p>\n<p>A prop\u00f3sito, o termo CDR vem do ingl\u00eas \u201cContent Disarm &amp; Reconstruction\u201d que, quando traduzido para o portugu\u00eas, significa \u201cDesarmar e Reconstruir Conte\u00fado\u201d.<\/p>\n<p>Por seu poder de atua\u00e7\u00e3o, o CDR \u00e9 muito utilizado para bloquear amea\u00e7as conhecidas e, principalmente, desconhecidas (ou tamb\u00e9m chamadas de <a href=\"https:\/\/gatefy.com\/pt-br\/blog\/vulnerabilidade-de-dia-zero-e-ataque-de-dia-zero\/\">ataques de dia zero<\/a>) que fazem uso de arquivos maliciosos e perigosos, como amea\u00e7as de <a href=\"https:\/\/gatefy.com\/pt-br\/blog\/o-que-e-phishing\/\">phishing<\/a>, <a href=\"https:\/\/gatefy.com\/pt-br\/blog\/o-que-e-spam\/\">spam<\/a> e <a href=\"https:\/\/gatefy.com\/pt-br\/blog\/o-que-e-ransomware\/\">ransomware<\/a>.<\/p>\n<p>Por falar nisso, voc\u00ea sabe qual \u00e9 um dos maiores perigos para as informa\u00e7\u00f5es e os dados de empresas? Se voc\u00ea pensou justamente em arquivos como <a href=\"https:\/\/gatefy.com\/pt-br\/blog\/arquivos-pdf-podem-ser-perigosos\/\">PDF<\/a>, Word, Excel e Power Point que chegam por e-mail, acertou.<\/p>\n<p>Neste artigo, vamos falar mais sobre o assunto e tamb\u00e9m sobre o funcionamento e as caracter\u00edsticas de uma solu\u00e7\u00e3o de CDR.<\/p>\n<h2>Como funciona CDR?<\/h2>\n<p>Os hackers trabalham dia e noite procurando vulnerabilidades na estrutura de diferentes tipos de arquivos, como Word e PDF, por exemplo. Isto significa que um dos m\u00e9todos mais bem sucedidos para infectar computadores e redes com ransomware e outras amea\u00e7as virtuais s\u00e3o documentos e anexos.<\/p>\n<p>Tendo isso em vista, o CDR funciona baseado no conceito de desarmar e sanitizar arquivos. A solu\u00e7\u00e3o \u00e9 diferenciada porque n\u00e3o atua com base em identifica\u00e7\u00e3o ou detec\u00e7\u00e3o de amea\u00e7as, como a grande maioria das solu\u00e7\u00f5es de ciberseguran\u00e7a, a exemplo de um antiv\u00edrus comum.<\/p>\n<p>Na pr\u00e1tica, a solu\u00e7\u00e3o desconstr\u00f3i todo o conte\u00fado ativo de um arquivo, remove-o e cria um arquivo higienizado, respeitando a pol\u00edtica da empresa ou a especifica\u00e7\u00e3o do tipo de arquivo.<\/p>\n<p>Explicando de outra maneira, quando um arquivo entra na solu\u00e7\u00e3o de CDR, qualquer conte\u00fado execut\u00e1vel \u00e9 removido. Isto quer dizer que, no fim, n\u00e3o importa se o conte\u00fado \u00e9 uma amea\u00e7a real ou n\u00e3o.<\/p>\n<p>O importante \u00e9 que o usu\u00e1rio n\u00e3o corra o risco de ser infectado com um c\u00f3digo malicioso que pode se espalhar pela rede, provocando preju\u00edzos maiores.<\/p>\n<p>Por causa desta caracter\u00edstica, o CDR acaba sendo uma das melhores tecnologia de prote\u00e7\u00e3o avan\u00e7ada contra\u00a0ataques de dia zero, que costumam preocupar o time de TI por ainda n\u00e3o terem sido identificadas por outras solu\u00e7\u00f5es de seguran\u00e7a.<\/p>\n<p>Vamos criar um exemplo. Imagine que voc\u00ea recebeu um e-mail com um arquivo PDF. O assunto da mensagem \u00e9 intrigante e voc\u00ea est\u00e1 muito interessado em abrir o anexo.<\/p>\n<p>Entretanto, o que voc\u00ea n\u00e3o sabe \u00e9 que existe uma macro no arquivo que abrir\u00e1 uma porta para um ataque de malware. Mas, se a solu\u00e7\u00e3o de CDR estiver ativada, o mecanismo de seguran\u00e7a remover\u00e1 essa macro do arquivo PDF e voc\u00ea receber\u00e1 um e-mail com o arquivo limpo e seguro.<\/p>\n<h2>Vantagens do CDR<\/h2>\n<p>O CDR deve ser pensado como uma camada extra de prote\u00e7\u00e3o contra arquivos perigosos. Agora, confira algumas vantagens ao utilizar uma solu\u00e7\u00e3o de CDR:<\/p>\n<ul>\n<li>Combater amea\u00e7as de dia zero.<\/li>\n<li>Evitar vazamentos de dados.<\/li>\n<li>Manter informa\u00e7\u00f5es confidenciais em seguran\u00e7a.<\/li>\n<li>Bloquear arquivos e c\u00f3digos maliciosos.<\/li>\n<li>Combater e-mails maliciosos.<\/li>\n<\/ul>\n<h2>Implanta\u00e7\u00e3o de CDR<\/h2>\n<p>O CDR pode ser classificado como uma solu\u00e7\u00e3o avan\u00e7ada de seguran\u00e7a e, geralmente, \u00e9 implantado como um complemento ou refor\u00e7o para outras tecnologias de seguran\u00e7a, como um <a href=\"https:\/\/gatefy.com\/pt-br\/blog\/o-que-e-um-secure-email-gateway-seg\/\">Secure Email Gateway (SEG)<\/a>.<\/p>\n<p>Inclusive, como o e-mail se trata do canal mais utilizado pelos cibercriminosos para propagar malware e outras amea\u00e7as, \u00e9 recomendado que o CDR seja avaliado na seguran\u00e7a de e-mail.<\/p>\n<p>De acordo com dados publicados em relat\u00f3rio da Europol, <a href=\"https:\/\/www.europol.europa.eu\/sites\/default\/files\/documents\/report_on_phishing_-_a_law_enforcement_perspective.pdf\">48% dos arquivos maliciosos que trafegam por e-mail s\u00e3o arquivos do Office<\/a>. Outros tipos de arquivo comuns e perigosos s\u00e3o os arquivos PDF e zip.<\/p>\n<p>Ou seja, voc\u00ea precisa estar atento, especialmente, a arquivos da Microsoft e da Adobe, e a solu\u00e7\u00e3o de CDR pode contribuir com isso.<\/p>\n<h2>Solu\u00e7\u00f5es de seguran\u00e7a de e-mail<\/h2>\n<p>Se voc\u00ea quer ter mais informa\u00e7\u00f5es sobre CDR e outras solu\u00e7\u00f5es avan\u00e7adas de ciberseguran\u00e7a,\u00a0<a href=\"https:\/\/gatefy.com\/pt-br\/contato\/\">escreva para a gente<\/a>. Tamb\u00e9m navegue pelo\u00a0<a href=\"https:\/\/gatefy.com\/pt-br\/blog\/\">nosso blog<\/a> para se manter informado sobre o mundo da seguran\u00e7a da informa\u00e7\u00e3o.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>O CDR \u00e9 uma solu\u00e7\u00e3o de seguran\u00e7a da informa\u00e7\u00e3o usada para prote\u00e7\u00e3o contra c\u00f3digos maliciosos que est\u00e3o contidos em documentos e anexos. Por isso, o CDR \u00e9 tamb\u00e9m conhecido como uma tecnologia de Threat Extraction, ou seja, uma ferramenta de extra\u00e7\u00e3o de amea\u00e7as. A prop\u00f3sito, o termo CDR vem do ingl\u00eas \u201cContent Disarm &amp; Reconstruction\u201d [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":14824,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2,37],"tags":[],"class_list":["post-6385","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","category-educacao"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>O que \u00e9 CDR (Content Disarm &amp; Reconstruction)? - Gatefy<\/title>\n<meta name=\"description\" content=\"CDR significa Content Disarm &amp; Reconstruction e funciona na desconstru\u00e7\u00e3o de todo o conte\u00fado ativo de um arquivo. 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