{"id":479478,"date":"2023-08-09T10:40:40","date_gmt":"2023-08-09T10:40:40","guid":{"rendered":""},"modified":"2023-09-05T11:18:55","modified_gmt":"2023-09-05T11:18:55","slug":"user-account-control","status":"publish","type":"wiki","link":"https:\/\/oneproxy.pro\/pt\/wiki\/user-account-control\/","title":{"rendered":"Controle de conta de usu\u00e1rio"},"content":{"rendered":"<p>O Controle de Conta de Usu\u00e1rio (UAC) \u00e9 um componente de seguran\u00e7a de muitos sistemas operacionais modernos. Seu objetivo \u00e9 evitar altera\u00e7\u00f5es n\u00e3o autorizadas em um computador, exigindo o consentimento do usu\u00e1rio ou credenciais administrativas para executar determinadas tarefas que possam afetar a integridade ou a seguran\u00e7a do sistema.<\/p>\n<h2>A hist\u00f3ria da origem do controle de conta de usu\u00e1rio e sua primeira men\u00e7\u00e3o<\/h2>\n<p>O Controle de Conta de Usu\u00e1rio foi introduzido com o Windows Vista pela Microsoft em 2006. A inten\u00e7\u00e3o principal era aprimorar a postura de seguran\u00e7a do sistema operacional Windows, limitando os privil\u00e9gios de aplicativos de software e usu\u00e1rios. A ideia foi influenciada pelo Princ\u00edpio do M\u00ednimo Privil\u00e9gio (POLP), que orienta que usu\u00e1rios e sistemas s\u00f3 devem receber as permiss\u00f5es necess\u00e1rias para executar suas tarefas espec\u00edficas.<\/p>\n<h2>Informa\u00e7\u00f5es detalhadas sobre controle de conta de usu\u00e1rio: expandindo o t\u00f3pico Controle de conta de usu\u00e1rio<\/h2>\n<p>O UAC funciona solicitando consentimento ou credenciais administrativas do usu\u00e1rio quando um processo tenta fazer uma altera\u00e7\u00e3o que requer direitos administrativos. Essas altera\u00e7\u00f5es podem incluir a instala\u00e7\u00e3o de software, a altera\u00e7\u00e3o das configura\u00e7\u00f5es do sistema ou a modifica\u00e7\u00e3o de arquivos do sistema.<\/p>\n<h3>Componentes do UAC<\/h3>\n<ol>\n<li><strong>Modo de aprova\u00e7\u00e3o do administrador:<\/strong> Requer consentimento do usu\u00e1rio para tarefas administrativas.<\/li>\n<li><strong>Isolamento de privil\u00e9gios da interface do usu\u00e1rio (UIPI):<\/strong> Separa processos com privil\u00e9gios diferentes.<\/li>\n<li><strong>\u00c1rea de trabalho segura:<\/strong> Apresenta os prompts do UAC em um ambiente isolado.<\/li>\n<li><strong>Virtualiza\u00e7\u00e3o:<\/strong> Permite que aplicativos legados sejam executados com permiss\u00f5es de usu\u00e1rio padr\u00e3o.<\/li>\n<\/ol>\n<h2>A estrutura interna do controle de conta de usu\u00e1rio: como funciona o controle de conta de usu\u00e1rio<\/h2>\n<p>O UAC opera distinguindo entre permiss\u00f5es de usu\u00e1rio padr\u00e3o e permiss\u00f5es administrativas. Quando um processo requer privil\u00e9gios mais altos, o UAC interv\u00e9m com uma das seguintes a\u00e7\u00f5es:<\/p>\n<ul>\n<li><strong>Solicita\u00e7\u00e3o de consentimento:<\/strong> Solicita credenciais administrativas aos usu\u00e1rios padr\u00e3o.<\/li>\n<li><strong>Solicita\u00e7\u00e3o de credenciais:<\/strong> Solicita consentimento aos administradores no modo de aprova\u00e7\u00e3o de administrador.<\/li>\n<\/ul>\n<h2>An\u00e1lise dos principais recursos do controle de conta de usu\u00e1rio<\/h2>\n<ul>\n<li><strong>Seguran\u00e7a melhorada:<\/strong> Reduz o risco de malware e altera\u00e7\u00f5es n\u00e3o autorizadas.<\/li>\n<li><strong>Conscientiza\u00e7\u00e3o do usu\u00e1rio:<\/strong> Informa os usu\u00e1rios sobre altera\u00e7\u00f5es cr\u00edticas do sistema.<\/li>\n<li><strong>Compatibilidade:<\/strong> Funciona com aplicativos legados por meio de virtualiza\u00e7\u00e3o.<\/li>\n<li><strong>Configurabilidade:<\/strong> Os administradores podem personalizar o comportamento do UAC por meio de pol\u00edticas.<\/li>\n<\/ul>\n<h2>Tipos de controle de conta de usu\u00e1rio<\/h2>\n<table>\n<thead>\n<tr>\n<th>N\u00edvel<\/th>\n<th>Descri\u00e7\u00e3o<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Notificar sempre<\/td>\n<td>Sempre pede consentimento ou credenciais.<\/td>\n<\/tr>\n<tr>\n<td>Notificar sobre altera\u00e7\u00f5es<\/td>\n<td>Solicita consentimento ou credenciais quando os programas tentam fazer altera\u00e7\u00f5es.<\/td>\n<\/tr>\n<tr>\n<td>Notificar sobre altera\u00e7\u00f5es (Dim)<\/td>\n<td>O mesmo que acima, mas apenas para bin\u00e1rios n\u00e3o Windows.<\/td>\n<\/tr>\n<tr>\n<td>Nunca notifique<\/td>\n<td>Desativa os prompts do UAC (n\u00e3o recomendado devido a riscos de seguran\u00e7a).<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>Maneiras de usar o controle de conta de usu\u00e1rio, problemas e suas solu\u00e7\u00f5es<\/h2>\n<h3>Maneiras de usar<\/h3>\n<ul>\n<li><strong>Usu\u00e1rios dom\u00e9sticos:<\/strong> Configura\u00e7\u00f5es padr\u00e3o para seguran\u00e7a equilibrada.<\/li>\n<li><strong>Empreendimentos:<\/strong> Configura\u00e7\u00f5es personalizadas por meio da Pol\u00edtica de Grupo.<\/li>\n<\/ul>\n<h3>Problemas e solu\u00e7\u00f5es<\/h3>\n<ul>\n<li><strong>Problemas de compatibilidade:<\/strong> A virtualiza\u00e7\u00e3o pode resolver problemas de aplicativos legados.<\/li>\n<li><strong>Aborrecimento com prompts:<\/strong> Ajustar o n\u00edvel do UAC pode reduzir a frequ\u00eancia do prompt sem desativ\u00e1-lo completamente.<\/li>\n<\/ul>\n<h2>Principais caracter\u00edsticas e outras compara\u00e7\u00f5es com termos semelhantes<\/h2>\n<table>\n<thead>\n<tr>\n<th>Recurso<\/th>\n<th>Controle de conta de usu\u00e1rio<\/th>\n<th>Tecnologias semelhantes<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Mecanismo de Solicita\u00e7\u00e3o<\/td>\n<td>Consentimento\/Credenciais<\/td>\n<td>Varia<\/td>\n<\/tr>\n<tr>\n<td>Integra\u00e7\u00e3o<\/td>\n<td>Sistema operacional Windows<\/td>\n<td>Dependente do sistema operacional<\/td>\n<\/tr>\n<tr>\n<td>N\u00edvel de seguran\u00e7a<\/td>\n<td>Configur\u00e1vel<\/td>\n<td>Varia<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>Perspectivas e tecnologias do futuro relacionadas ao controle de contas de usu\u00e1rio<\/h2>\n<p>Os avan\u00e7os futuros no UAC podem incluir:<\/p>\n<ul>\n<li>Solicita\u00e7\u00e3o aprimorada com reconhecimento de contexto orientada por IA.<\/li>\n<li>Integra\u00e7\u00e3o com autentica\u00e7\u00e3o biom\u00e9trica.<\/li>\n<li>Compatibilidade aprimorada com aplicativos e tecnologias emergentes.<\/li>\n<\/ul>\n<h2>Como os servidores proxy podem ser usados ou associados ao controle de conta de usu\u00e1rio<\/h2>\n<p>Servidores proxy, como os fornecidos pelo OneProxy, podem trabalhar em conjunto com o UAC para aumentar a seguran\u00e7a. Ao controlar e monitorar o tr\u00e1fego de rede, os servidores proxy adicionam uma camada adicional de seguran\u00e7a ao sistema, complementando o controle interno do UAC sobre as permiss\u00f5es de aplicativos e usu\u00e1rios.<\/p>\n<h2>Links Relacionados<\/h2>\n<ul>\n<li><a href=\"https:\/\/docs.microsoft.com\/en-us\/windows\/security\/identity-protection\/user-account-control\/user-account-control-overview\" target=\"_new\" rel=\"noopener nofollow\">Documenta\u00e7\u00e3o oficial de controle de conta de usu\u00e1rio da Microsoft<\/a><\/li>\n<li><a href=\"https:\/\/oneproxy.pro\/pt\/\" target=\"_new\" rel=\"noopener\">Servi\u00e7os OneProxy<\/a><\/li>\n<li><a href=\"https:\/\/en.wikipedia.org\/wiki\/Principle_of_least_privilege\" target=\"_new\" rel=\"noopener nofollow\">O Princ\u00edpio da Explica\u00e7\u00e3o do Menor Privil\u00e9gio<\/a><\/li>\n<\/ul>","protected":false},"featured_media":479479,"menu_order":0,"template":"","meta":{"_acf_changed":false,"content-type":"","inline_featured_image":false,"footnotes":""},"class_list":["post-479478","wiki","type-wiki","status-publish","has-post-thumbnail","hentry"],"acf":{"faq_title":"Frequently Asked Questions about <mark>User Account Control<\/mark>","faq_items":[{"question":"What is User Account Control (UAC)?","answer":"<p>User Account Control (UAC) is a security feature found in many modern operating systems, designed to prevent unauthorized changes to a computer system. It does this by requiring user consent or administrative credentials for tasks that might affect the system's integrity or security.<\/p>"},{"question":"When was User Account Control first introduced?","answer":"<p>User Account Control was first introduced by Microsoft with Windows Vista in 2006. It was created to enhance the security of the Windows operating system by restricting software applications' and users' privileges.<\/p>"},{"question":"How does User Account Control work?","answer":"<p>UAC operates by distinguishing between standard user permissions and administrative permissions. When a process requires higher privileges, UAC either asks for user consent or prompts for administrative credentials. Components of UAC include Admin Approval Mode, User Interface Privilege Isolation (UIPI), Secure Desktop, and Virtualization.<\/p>"},{"question":"What are the key features of User Account Control?","answer":"<p>The key features of User Account Control include enhanced security by reducing the risk of malware and unauthorized changes, user awareness through prompts about critical system changes, compatibility with legacy applications, and configurability by administrators.<\/p>"},{"question":"What types of User Account Control exist?","answer":"<p>The types of User Account Control can be categorized into four levels:<\/p><ul><li>Always Notify<\/li><li>Notify on Changes<\/li><li>Notify on Changes (Dim the desktop)<\/li><li>Never Notify<\/li><\/ul>"},{"question":"What are some problems and solutions related to User Account Control?","answer":"<p>Some common problems include compatibility issues with older applications and annoyance with frequent prompts. Solutions might include utilizing UAC\u2019s virtualization for legacy application problems and adjusting the UAC level to reduce prompt frequency without completely disabling it.<\/p>"},{"question":"What are the future perspectives and technologies related to User Account Control?","answer":"<p>Future advancements in UAC may include enhanced AI-driven context-aware prompting, integration with biometric authentication, and improved compatibility with emerging applications and technologies.<\/p>"},{"question":"How can proxy servers be used or associated with User Account Control?","answer":"<p>Proxy servers, like those provided by OneProxy, can work in conjunction with UAC to enhance security. By controlling and monitoring network traffic, proxy servers add an additional layer of security that complements UAC's control over application and user permissions.<\/p>"}]},"_links":{"self":[{"href":"https:\/\/oneproxy.pro\/pt\/wp-json\/wp\/v2\/wiki\/479478","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/oneproxy.pro\/pt\/wp-json\/wp\/v2\/wiki"}],"about":[{"href":"https:\/\/oneproxy.pro\/pt\/wp-json\/wp\/v2\/types\/wiki"}],"version-history":[{"count":0,"href":"https:\/\/oneproxy.pro\/pt\/wp-json\/wp\/v2\/wiki\/479478\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/oneproxy.pro\/pt\/wp-json\/wp\/v2\/media\/479479"}],"wp:attachment":[{"href":"https:\/\/oneproxy.pro\/pt\/wp-json\/wp\/v2\/media?parent=479478"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}