{"id":331,"date":"2017-05-15T11:18:43","date_gmt":"2017-05-15T14:18:43","guid":{"rendered":"https:\/\/www.ufrgs.br\/cpd\/?p=331"},"modified":"2017-10-05T08:19:41","modified_gmt":"2017-10-05T11:19:41","slug":"ataque-cibernetico","status":"publish","type":"post","link":"https:\/\/www.ufrgs.br\/cpd\/ataque-cibernetico\/","title":{"rendered":"Ataque cibern\u00e9tico"},"content":{"rendered":"<p>Um novo\u00a0<i>ransomware<\/i>, o WannaCry\/WannaCrypt,\u00a0<i>malware<\/i>\u00a0que sequestra o computador, criptografando os arquivos e exigindo resgaste, est\u00e1 se espalhando pelas redes ao redor do mundo, conforme est\u00e1 sendo amplamente divulgado na m\u00eddia. Muitas empresas e indiv\u00edduos tiveram seus sistemas comprometidos.<\/p>\n<p>Para minimizar os riscos dos computadores da Universidade serem infectados e ocorrer perda de dados importantes, \u00e9 necess\u00e1rio que sejam tomadas algumas precau\u00e7\u00f5es.<\/p>\n<p>O TRI, Time de Resposta a Incidentes de Seguran\u00e7a, recomenda o seguinte:<\/p>\n<p><b>Preven\u00e7\u00e3o<\/b><\/p>\n<p>A preven\u00e7\u00e3o contra esse tipo de\u00a0<i>malware<\/i>\u00a0segue os mesmos cuidados que devem ser tomados diariamente ao usar o computador, navegar na rede e etc. S\u00e3o eles:<\/p>\n<p>&#8211;\u00a0 Mantenha atualizado o sistema operacional do computador. Para os sistemas Windows XP e Vista, que n\u00e3o t\u00eam mais suporte, a Microsoft disponibilizou corre\u00e7\u00f5es de seguran\u00e7a para a falha que est\u00e1 sendo utilizada por esse\u00a0<i>ransomware<\/i>. A atualiza\u00e7\u00e3o do sistema e a instala\u00e7\u00e3o das corre\u00e7\u00f5es de seguran\u00e7a s\u00e3o cruciais para evitar a dissemina\u00e7\u00e3o do problema na rede, caso a infec\u00e7\u00e3o ocorra.<\/p>\n<p>&#8211;\u00a0 Mantenha o antiv\u00edrus atualizado. Se o computador for institucional, a recomenda\u00e7\u00e3o \u00e9 instalar o antiv\u00edrus licenciado da Kaspersky, que possui um m\u00f3dulo espec\u00edfico para combater\u00a0<i>malware<\/i>\u00a0do tipo\u00a0<i>ransomware<\/i>.<\/p>\n<p>&#8211;\u00a0 Redobre os cuidados com anexos e<i>\u00a0links<\/i>\u00a0recebidos por\u00a0<i>e-mail<\/i>, mensagens instant\u00e2neas, redes sociais, entre outras, mesmo que recebidas de pessoas conhecidas.<\/p>\n<p>&#8211;\u00a0 Evite navegar na internet ou efetuar tarefas do dia a dia utilizando contas de administrador. Utilize contas limitadas, de usu\u00e1rio, para isso.<\/p>\n<p>&#8211;\u00a0 Efetue c\u00f3pias de seguran\u00e7a\u00a0<i>(backup<\/i>) do sistema e dos dados importantes. Os\u00a0<i>backups<\/i>\u00a0devem ser guardados em local seguro, separado do computador, e deve-se evitar disponibiliz\u00e1-los diretamente na rede.<br \/>\nFeito o\u00a0<i>backup<\/i>, \u00e9 importante fazer uma verifica\u00e7\u00e3o e certificar-se de que os arquivos salvos podem ser recuperados.<\/p>\n<p><b>Recupera\u00e7\u00e3o<\/b><br \/>\nAt\u00e9 o momento, ainda n\u00e3o existe qualquer ferramenta capaz de recuperar os arquivos que tenham sido criptografados. A solu\u00e7\u00e3o mais eficaz \u00e9 fazer a recupera\u00e7\u00e3o dos arquivos a partir de\u00a0<i>backups\u00a0<\/i>feitos anteriormente.<\/p>\n<p>Caso alguma m\u00e1quina seja infectada pelo WannaCry\/WannaCrypt, \u00e9 fundamental que seja imediatamente removida da rede e mantido contato com o TRI, para as devidas provid\u00eancias.<\/p>\n<p>Refer\u00eancias:<\/p>\n<ul>\n<li class=\"links\"><a href=\"https:\/\/news.microsoft.com\/pt-br\/orientacao-ao-cliente-sobre-ataques-do-wannacrypt\">MS WannaCrypt<\/a><\/li>\n<li class=\"links\"><a href=\"https:\/\/technet.microsoft.com\/en-us\/library\/security\/ms17-010.aspx\">MS MS17-010<\/a><\/li>\n<li class=\"links\"><a href=\"http:\/\/www.ufrgs.br\/tri\/Documentos\/como-manter-seu-computador-saudavel\">TRI<\/a><\/li>\n<li class=\"links\"><a href=\"https:\/\/www1.ufrgs.br\/downloadsoftwares\/softwaresautorizados.php\">AV Kaspersky<\/a><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Um novo\u00a0ransomware, o WannaCry\/WannaCrypt,\u00a0malware\u00a0que sequestra o computador, criptografando os arquivos e exigindo resgaste, est\u00e1 se espalhando pelas redes ao redor [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7],"tags":[],"class_list":["post-331","post","type-post","status-publish","format-standard","hentry","category-noticias"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.1 - 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