{"id":155721,"date":"2024-10-24T06:21:00","date_gmt":"2024-10-24T13:21:00","guid":{"rendered":"https:\/\/blog.everpuredata.com\/?p=155721"},"modified":"2025-02-13T20:54:22","modified_gmt":"2025-02-14T04:54:22","slug":"security-logs-3-reasons-you-cant-survive-without-them","status":"publish","type":"post","link":"https:\/\/blog.everpuredata.com\/pt-br\/perspectives\/security-logs-3-reasons-you-cant-survive-without-them\/","title":{"rendered":"Os dados de log de seguran\u00e7a podem ajudar a evitar um ataque cibern\u00e9tico, se estiverem na plataforma certa"},"content":{"rendered":"\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-7387b849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column has-medium-font-size is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:70%\">\n<div class=\"wp-block-group pdf-print-hide is-content-justification-right is-nowrap is-layout-flex wp-container-core-group-is-layout-f726d978 wp-block-group-is-layout-flex\"><div class=\"pdfprnt-buttons\"><a href=\"https:\/\/blog.everpuredata.com\/pt-br\/wp-json\/wp\/v2\/posts\/155721?print=pdf\" class=\"pdfprnt-button pdfprnt-button-pdf\" target=\"_blank\" ><img decoding=\"async\" src=\"https:\/\/blog.everpuredata.com\/wp-content\/plugins\/pdf-print-pro\/images\/pdf.png?1953174090\" alt=\"image_pdf\" title=\"Ver PDF\" \/><\/a><a href=\"https:\/\/blog.everpuredata.com\/pt-br\/wp-json\/wp\/v2\/posts\/155721?print=print\" class=\"pdfprnt-button pdfprnt-button-print\" target=\"_blank\" ><img decoding=\"async\" src=\"https:\/\/blog.everpuredata.com\/wp-content\/plugins\/pdf-print-pro\/images\/print.png?245231721\" alt=\"image_print\" title=\"Conte\u00fado de impress\u00e3o\" \/><\/a><\/div>\n<\/div>\n\n\n\n<div id=\"CONTENT\" class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\">\n<p class=\"wp-block-paragraph\">O humilde log de seguran\u00e7a, n\u00e3o t\u00e3o chamativo quanto as ferramentas de seguran\u00e7a, como o gerenciamento de informa\u00e7\u00f5es <a href=\"https:\/\/blog.everpuredata.com\/perspectives\/troubleshooting-siem-systems-look-under-the-hood-at-storage\/\">e eventos de seguran\u00e7a (SIEM, Security Information and Event Management)<\/a> e a detec\u00e7\u00e3o e resposta estendidas (XDR, Extended Detection and Response), precisa ser eliminado e colocado em a\u00e7\u00e3o por mais equipes de seguran\u00e7a. Na verdade, a qualidade dos dados de log pode determinar a resili\u00eancia cibern\u00e9tica de uma organiza\u00e7\u00e3o. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Gra\u00e7as ao acesso mais f\u00e1cil e r\u00e1pido aos dados, os logs de seguran\u00e7a, os dados brutos que fazem os produtos digitais flashy fazerem sua m\u00e1gica, podem ser a chave para evitar um ataque cibern\u00e9tico, responder o mais r\u00e1pido poss\u00edvel a uma viola\u00e7\u00e3o quando os <a href=\"https:\/\/www.forbes.com\/sites\/daveywinder\/2025\/01\/28\/hackers-are-getting-faster-48-minutes-and-youre-cooked\/\">tempos de breakout est\u00e3o caindo para apenas 48 minutos<\/a> e entender detalhes cr\u00edticos de incidentes de seguran\u00e7a ap\u00f3s eles ocorrerem.\u00a0<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-how-security-logs-can-bolster-resiliency\"><strong>Como os logs de seguran\u00e7a podem <\/strong>refor\u00e7ar a resili\u00eancia<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Uma solu\u00e7\u00e3o de an\u00e1lise de logs pode monitorar continuamente logs de seguran\u00e7a para aumentar a conscientiza\u00e7\u00e3o sobre incidentes de seguran\u00e7a, seja sobre acesso n\u00e3o autorizado, uma viola\u00e7\u00e3o das pol\u00edticas de seguran\u00e7a, uma altera\u00e7\u00e3o nos dados ou configura\u00e7\u00f5es do sistema sem as permiss\u00f5es certas ou um ataque direto. Se um indicador de comprometimento (IoC, indicator of compromise) for sinalizado, as solu\u00e7\u00f5es de an\u00e1lise de log podem atuar como um sistema de alerta precoce, oferecendo uma oportunidade de impedir o avan\u00e7o de um invasor. Os recursos de detec\u00e7\u00e3o tamb\u00e9m podem ser usados para testar cen\u00e1rios e hip\u00f3teses de seguran\u00e7a e realizar a ca\u00e7a proativa a amea\u00e7as.<\/p>\n\n\n\n<figure class=\"wp-block-pullquote\"><blockquote><p>\u201cEssa infiltra\u00e7\u00e3o mais r\u00e1pida deixa as organiza\u00e7\u00f5es com ainda menos tempo para responder, tornando as defesas automatizadas essenciais para combinar e superar a velocidade dos advers\u00e1rios.\u201d Irene Fuentes McDonnell, pesquisadora de amea\u00e7as cibern\u00e9ticas da ReliaQuest<\/p><cite><a href=\"https:\/\/www.forbes.com\/sites\/daveywinder\/2025\/01\/28\/hackers-are-getting-faster-48-minutes-and-youre-cooked\/\">Forbes.com<\/a><\/cite><\/blockquote><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Depois de identificar e corrigir um incidente de seguran\u00e7a, \u00e9 essencial rastrear o evento at\u00e9 o in\u00edcio. Os logs de seguran\u00e7a podem ser usados para identificar a pessoa ou o dispositivo que infiltrou o sistema, ver como eles entraram, saber exatamente o que fizeram e quando, e determinar se a amea\u00e7a est\u00e1 em andamento. Essa <a href=\"https:\/\/blog.everpuredata.com\/perspectives\/the-crucial-role-of-data-forensics-in-post-cyberattack-recovery\/\">tarefa forense<\/a> \u00e9 uma parte essencial da recupera\u00e7\u00e3o ap\u00f3s o evento. Sem ele, sua equipe de TI n\u00e3o saber\u00e1 quais sistemas est\u00e3o vulner\u00e1veis ou como corrigi-los.\u00a0<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-the-advantage-of-speed-visibility\"><strong>A vantagem da velocidade? Visibilidade<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Registros r\u00e1pidos de seguran\u00e7a s\u00e3o importantes, muito. Quando os hackers obt\u00eam acesso a uma rede, eles podem permanecer por dias ou at\u00e9 semanas antes que as pessoas ou a tecnologia detectem sua presen\u00e7a. Embora n\u00e3o sejam detectados, os invasores coletam credenciais de administrador e se preparam para exfiltrar dados ou ativar ransomware. Tomar medidas oportunas depende de ter visibilidade quase em tempo real, e isso requer logs de seguran\u00e7a que sejam ativados e usados corretamente.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-1-choose-an-advanced-log-analytics-solution\">1. <strong>Escolha uma solu\u00e7\u00e3o avan\u00e7ada de an\u00e1lise de log.<\/strong> <\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Em um \u00fanico dia, os servidores, a rede e os dispositivos do usu\u00e1rio final podem gerar centenas de milhares, at\u00e9 milh\u00f5es, de entradas de log. <a href=\"https:\/\/www.whatsupgold.com\/resources\/best-practices\/event-log-management\">Um estudo<\/a> descobriu que uma empresa m\u00e9dia acumular\u00e1 at\u00e9 4GB de dados de log todos os dias. Esse ac\u00famulo de dados ser\u00e1 in\u00fatil sem as ferramentas necess\u00e1rias para analis\u00e1-lo adequadamente.\u00a0<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Concentre-se em colocar a ferramenta de an\u00e1lise certa em cima do registro de seguran\u00e7a em tr\u00eas \u00e1reas principais: rede, endpoints e usu\u00e1rios finais. Depois de coletar e analisar os logs, uma ferramenta de orquestra\u00e7\u00e3o pode enriquecer os dados que s\u00e3o transmitidos aos seus ca\u00e7adores de amea\u00e7as para que eles tenham um conjunto de informa\u00e7\u00f5es selecionadas para come\u00e7ar a revis\u00e3o.\u00a0<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-2-log-everything\">2. <strong>Registre tudo<\/strong>. <\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Visibilidade n\u00e3o se trata apenas de profundidade, mas tamb\u00e9m amplitude. Voc\u00ea n\u00e3o sabe onde ocorrer\u00e1 uma tentativa de viola\u00e7\u00e3o, portanto, ter logs em toda a infraestrutura pode economizar tempo no futuro. Tamb\u00e9m \u00e9 essencial que sua ferramenta de registro agregue, correlacione e analise dados em todos esses v\u00e1rios tipos e fontes de dados e permita a integra\u00e7\u00e3o de dados contextuais.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-3-secure-the-logs\">3. <strong>Proteja os logs<\/strong>. <\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">N\u00e3o \u00e9 de surpreender que os logs de seguran\u00e7a possam ser de grande interesse para os hackers, por isso \u00e9 importante mant\u00ea-los bem protegidos. Para proteger logs de seguran\u00e7a, voc\u00ea pode:\u00a0<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Criptografe ou proteja-os com senha.<\/li>\n\n\n\n<li>Fa\u00e7a arquivos de log apenas anexados, o que significa que um usu\u00e1rio pode adicionar aos logs, mas n\u00e3o pode alterar ou apagar o que j\u00e1 existe, ou usar logs de auditoria inalter\u00e1veis para garantir precis\u00e3o.<\/li>\n\n\n\n<li>Crie c\u00f3pias de arquivos de log e armazene-as em v\u00e1rios ambientes.<\/li>\n\n\n\n<li>Armazene arquivos de log em um sistema ou servidor separado.<\/li>\n\n\n\n<li>Ocultar arquivos de log no sistema.<\/li>\n\n\n\n<li>Use m\u00eddia de grava\u00e7\u00e3o \u00fanica para salvar arquivos de log.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-the-capabilities-you-need-to-multiply-logs-value\"><strong>Os recursos necess\u00e1rios para multiplicar o valor dos logs<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Os logs de seguran\u00e7a e os sistemas usados para analis\u00e1-los, como Splunk e Elastic, precisam desses recursos:\u00a0<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Processamento em tempo real com desempenho de pesquisa e consulta que \u00e9 reproduz\u00edvel, n\u00e3o importa o tamanho do log. Isso exige alta taxa de transfer\u00eancia, baixa lat\u00eancia e desempenho uniforme ajustado para qualquer cen\u00e1rio ou escala.<\/li>\n\n\n\n<li>Redu\u00e7\u00e3o de dados integrada e expans\u00e3o sob demanda para registrar e reter mais dados por mais tempo, para a an\u00e1lise mais rica poss\u00edvel.<\/li>\n\n\n\n<li>F\u00e1cil escalabilidade para v\u00e1rias cargas de trabalho, consultas simult\u00e2neas e padr\u00f5es de dados vari\u00e1veis para acomodar an\u00e1lise r\u00e1pida de conjuntos de dados de v\u00e1rios petabytes.<\/li>\n\n\n\n<li>V\u00e1rios logs que correlacionam dados entre redes, endpoints e usu\u00e1rios finais.\u00a0<\/li>\n\n\n\n<li>Simplicidade de gerenciamento para que voc\u00ea crie facilmente novas consultas e reduza a complexidade.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Alcan\u00e7ar esse n\u00edvel de desempenho requer uma infraestrutura de back-end que possa suport\u00e1-lo. Sem um poderoso back-end de armazenamento de dados, a realidade \u00e9 que at\u00e9 mesmo consultas de correla\u00e7\u00e3o bem-sucedidas podem ser muito lentas para revelar amea\u00e7as a tempo de evitar danos.\u00a0<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Quando voc\u00ea est\u00e1 procurando essa agulha sorrateira no palheiro do ambiente de seguran\u00e7a, pense no armazenamento de dados incrivelmente eficiente como um \u00edm\u00e3 para levar essa agulha at\u00e9 o topo. Ele faz um trabalho r\u00e1pido de detec\u00e7\u00e3o e an\u00e1lise de amea\u00e7as. Mas se o armazenamento for lento, o data <a href=\"https:\/\/blog.everpuredata.com\/purely-educational\/data-warehouse-vs-data-lake-which-to-use\/#:~:text=What%20Is%20a%20Data%20Lake%3F\">lake<\/a> for muito grande ou as consultas forem mal gravadas, pode levar horas ou at\u00e9 dias de pesquisa para identificar um problema ou amea\u00e7a potencial.\u00a0<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-how-pure-storage-and-our-partners-can-help\"><strong>Como a Pure Storage e nossos parceiros podem ajudar<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">O <a href=\"https:\/\/www.purestorage.com\/products\/unstructured-data-storage.html\" target=\"_blank\" rel=\"noreferrer noopener\">FlashBlade<\/a>\u00ae ou o <a href=\"https:\/\/www.purestorage.com\/products\/unified-block-file-storage.html\">FlashArray<\/a> (FlashBlade\u00ae) da Pure Storage\u00ae consolida todos os seus arquivos de log e se integra perfeitamente at\u00e9 mesmo \u00e0s plataformas de an\u00e1lise de log mais avan\u00e7adas, incluindo solu\u00e7\u00f5es de nossos parceiros, <a href=\"https:\/\/www.purestorage.com\/partners\/technology-alliance-partners\/elastic.html\">Elastic<\/a> e <a href=\"https:\/\/www.purestorage.com\/partners\/technology-alliance-partners\/splunk.html\">Splunk<\/a>. O FlashBlade e o FlashArray oferecem insights mais r\u00e1pidos a um custo total de propriedade menor.\u00a0<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">O FlashBlade e o FlashArray protegem seus logs de seguran\u00e7a ainda mais. Ao executar a solu\u00e7\u00e3o em nosso recurso <a href=\"https:\/\/www.purestorage.com\/solutions\/data-protection\/ransomware\/safemode.html\">SafeMode<\/a> .com an\u00e1lise de log Splunk ou Elastic, voc\u00ea garante que seus logs n\u00e3o possam ser exclu\u00eddos. Dessa forma, voc\u00ea pode se recuperar com confian\u00e7a ap\u00f3s uma viola\u00e7\u00e3o de seguran\u00e7a e ter\u00e1 as informa\u00e7\u00f5es necess\u00e1rias para analisar o evento e tomar medidas para evitar que ele aconte\u00e7a novamente.<br\/><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Independentemente de quantas solu\u00e7\u00f5es de seguran\u00e7a voc\u00ea implantar, seja controle de acesso \u00e0 rede, prote\u00e7\u00e3o contra perda de dados, firewalls, sistemas de preven\u00e7\u00e3o contra invas\u00f5es, <a href=\"https:\/\/blog.everpuredata.com\/perspectives\/why-identity-is-the-new-network-perimeter\/\">gerenciamento de acesso \u00e0 identidade<\/a>, corretores de seguran\u00e7a de acesso \u00e0 nuvem, antimalware, detec\u00e7\u00e3o de endpoints ou todos os itens acima, \u00e9 essencial ter um plano de a\u00e7\u00e3o para detectar e corrigir uma viola\u00e7\u00e3o de seguran\u00e7a quando ou se ocorrer.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter\"><a href=\"https:\/\/www.purestorage.com\/resources\/type-a\/ciso-summary-report.html\"><img loading=\"lazy\" decoding=\"async\" width=\"1400\" height=\"368\" src=\"https:\/\/blog.everpuredata.com\/wp-content\/uploads\/2024\/03\/Screen-Shot-2024-03-29-at-1.48.02-PM-1400x368.png\" alt=\"CISO\" class=\"wp-image-139310\" srcset=\"https:\/\/blog.everpuredata.com\/wp-content\/uploads\/2024\/03\/Screen-Shot-2024-03-29-at-1.48.02-PM-1400x368.png 1400w, https:\/\/blog.everpuredata.com\/wp-content\/uploads\/2024\/03\/Screen-Shot-2024-03-29-at-1.48.02-PM-728x191.png 728w, https:\/\/blog.everpuredata.com\/wp-content\/uploads\/2024\/03\/Screen-Shot-2024-03-29-at-1.48.02-PM-768x202.png 768w, https:\/\/blog.everpuredata.com\/wp-content\/uploads\/2024\/03\/Screen-Shot-2024-03-29-at-1.48.02-PM-1536x404.png 1536w, https:\/\/blog.everpuredata.com\/wp-content\/uploads\/2024\/03\/Screen-Shot-2024-03-29-at-1.48.02-PM-2048x538.png 2048w, https:\/\/blog.everpuredata.com\/wp-content\/uploads\/2024\/03\/Screen-Shot-2024-03-29-at-1.48.02-PM-150x39.png 150w, https:\/\/blog.everpuredata.com\/wp-content\/uploads\/2024\/03\/Screen-Shot-2024-03-29-at-1.48.02-PM-2000x526.png 2000w\" sizes=\"auto, (max-width: 1400px) 100vw, 1400px\" \/><\/a><\/figure>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/pixel.welcomesoftware.com\/px.gif?key=YXJ0aWNsZT1iYzEzMTdiODI1ZGUxMWVjODdhMjliMWQ3M2EwMzQzZg==\" alt=\"\"\/><\/figure>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:30%\">\n<div class=\"wp-block-group sticky-content has-mint-green-500-background-color has-background is-layout-flow wp-block-group-is-layout-flow\" style=\"border-radius:20px;padding-top:20px;padding-right:20px;padding-bottom:20px;padding-left:20px\">\n<h2 class=\"wp-block-heading has-text-align-center has-ash-gray-500-color has-text-color has-link-color wp-elements-e03b5ed8732ebcc2a11722d5fcc4b3e7\" id=\"h-title\" style=\"font-size:px\">3 Security Log Mistakes to Avoid<\/h2>\n\n\n\n<p class=\"has-text-align-center has-ash-gray-500-color has-text-color has-link-color wp-elements-f8670e0d0ba234f97a5222bbfbb44d19 wp-block-paragraph\" style=\"font-size:clamp(0.875rem, 0.875rem + ((1vw - 0.2rem) * 0.208), 1rem);\">Learn how to tap into this data analytics goldmine.<\/p>\n\n\n\n<div class=\"wp-block-buttons is-content-justification-center is-layout-flex wp-container-core-buttons-is-layout-f8bdad00 wp-block-buttons-is-layout-flex\" style=\"margin-top:1em;margin-bottom:1em\">\n<div class=\"wp-block-button is-style-outline button-sticky is-style-outline--2\"><a class=\"wp-block-button__link has-cloud-white-500-color has-basil-green-500-background-color has-text-color has-background has-link-color has-inter-font-family has-custom-font-size wp-element-button\" href=\"https:\/\/blog.everpuredata.com\/perspectives\/are-you-making-any-of-these-mistakes-with-your-log-analytics\/\" style=\"border-style:none;border-width:0px;border-radius:4px;padding-top:14px;padding-right:16px;padding-bottom:14px;padding-left:16px;font-size:clamp(14px, 0.875rem + ((1vw - 3.2px) * 0.208), 16px);\" target=\"_blank\" rel=\"noreferrer noopener\">Read the Article<\/a><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Os logs de seguran\u00e7a podem ser uma ferramenta poderosa na batalha contra ataques cibern\u00e9ticos e outros tipos de incidentes de seguran\u00e7a. Saiba mais sobre eles e como voc\u00ea pode aproveit\u00e1-los melhor em sua estrat\u00e9gia de defesa. <\/p>\n","protected":false},"author":439,"featured_media":155727,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[14547],"tags":[14559,14557,14560,14561,14562,15517,16204],"content-position":[15722,15733],"ppma_author":[14179],"class_list":["post-155721","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-perspectives","tag-cyber-resiliency-pt-br","tag-cybersecurity-pt-br","tag-data-analytics-pt-br","tag-data-protection-pt-br","tag-pure-perspectives-pt-br","tag-ransomware-pt-br","tag-storage-administration-pt-br","content-position-featured-articles-data-analytics-pt-br","content-position-featured-articles-data-protection-pt-br"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.4 (Yoast SEO v28.0) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Os dados de log de seguran\u00e7a podem ajudar a evitar um ataque cibern\u00e9tico, se estiverem na plataforma certa<\/title>\n<meta name=\"description\" content=\"A import\u00e2ncia dos logs de seguran\u00e7a \u00e9 frequentemente negligenciada. 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