{"id":2355,"date":"2021-08-02T09:20:02","date_gmt":"2021-08-02T09:20:02","guid":{"rendered":"https:\/\/intelsynet.com\/?p=2355"},"modified":"2021-08-02T09:21:34","modified_gmt":"2021-08-02T09:21:34","slug":"investigadores-logran-ocultar-malware-en-una-red-neuronal","status":"publish","type":"post","link":"https:\/\/intelsynet.com\/es\/investigadores-logran-ocultar-malware-en-una-red-neuronal\/","title":{"rendered":"Investigadores logran ocultar malware en una red neuronal"},"content":{"rendered":"<div class=\"fusion-fullwidth fullwidth-box fusion-builder-row-1 nonhundred-percent-fullwidth non-hundred-percent-height-scrolling\" style=\"background-color: rgba(255,255,255,0);background-position: center center;background-repeat: no-repeat;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom: 0px;margin-top: 0px;border-width: 0px 0px 0px 0px;border-color:rgba(97,158,133,0);border-style:solid;\" ><div class=\"fusion-builder-row fusion-row\"><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-0 fusion_builder_column_1_1 1_1 fusion-one-full fusion-column-first fusion-column-last\" style=\"margin-top:0px;margin-bottom:0px;\"><div class=\"fusion-column-wrapper fusion-flex-column-wrapper-legacy\" style=\"background-position:left top;background-repeat:no-repeat;-webkit-background-size:cover;-moz-background-size:cover;-o-background-size:cover;background-size:cover;padding: 0px 0px 0px 0px;\"><div class=\"fusion-text fusion-text-1\"><p>Un estudio presentado por los investigadores Zhi Wang, Chaoge Liu, y Xiang Cui han mostrado c\u00f3mo esta t\u00e9cnica permite incluir malware en una arquitectura como\u00a0<strong>AlexNet<\/strong>. Dicha arquitectura, una red neuronal convolucional (<strong>CNN<\/strong>), se compone de\u00a0<strong>millones de par\u00e1metros y m\u00faltiples capas de neuronas<\/strong>, incluyendo capas \u00abocultas\u00bb totalmente conectadas. El estudio concluye que\u00a0<strong>modificar algunas neuronas no tiene un gran impacto en la precisi\u00f3n del modelo<\/strong>.<\/p>\n<p><strong>\u00a0<\/strong><\/p>\n<\/div><div class=\"imageframe-align-center\"><span class=\" fusion-imageframe imageframe-none imageframe-1 hover-type-zoomin\"><img decoding=\"async\" width=\"510\" height=\"199\" alt=\"malware\" title=\"redes neuronales\" data-src=\"https:\/\/intelsynet.com\/wp-content\/uploads\/2021\/08\/redes-neuronales.png\" class=\"img-responsive wp-image-2374 lazyload\" data-srcset=\"https:\/\/intelsynet.com\/wp-content\/uploads\/2021\/08\/redes-neuronales-200x78.png 200w, https:\/\/intelsynet.com\/wp-content\/uploads\/2021\/08\/redes-neuronales-400x156.png 400w, https:\/\/intelsynet.com\/wp-content\/uploads\/2021\/08\/redes-neuronales.png 510w\" data-sizes=\"(max-width: 800px) 100vw, 510px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 510px; --smush-placeholder-aspect-ratio: 510\/199;\" \/><\/span><\/div><div class=\"fusion-text fusion-text-2\"><p style=\"text-align: center;\">Esquema de arquitectura de redes neuronales. Fuente:\u00a0<a href=\"https:\/\/deepai.org\/machine-learning-glossary-and-terms\/hidden-layer-machine-learning\">DeepAI<\/a><\/p>\n<\/div><div class=\"fusion-text fusion-text-3\"><p>Utilizando\u00a0<strong>muestras reales de malware<\/strong>, las pruebas afirman que\u00a0<strong>un modelo de AlexNet<\/strong>\u00a0con normalizaci\u00f3n por lotes o\u00a0<strong>\u00ab<em>batch normalization\u00bb<\/em><\/strong>\u00a0<strong>puede incluir hasta 36.9MB de malware en un fichero de modelo de 178MB,<\/strong>\u00a0perdiendo\u00a0<strong>menos del 1% de la precisi\u00f3n<\/strong>\u00a0del modelo, pasando inadvertido por el usuario que lo implemente. Esto hace adem\u00e1s que sea\u00a0<a href=\"https:\/\/intelsynet.com\/siloscape\/\"><strong>indetectable<\/strong>\u00a0<\/a>por motores de antivirus, aunque esto se debe tambi\u00e9n al factor de que\u00a0<strong>no hay analistas que hayan desarrollado un framework de detecci\u00f3n para este tipo de modelos<\/strong>.<\/p>\n<p><strong>\u00a0<\/strong><\/p>\n<\/div><div class=\"fusion-sep-clear\"><\/div><div class=\"fusion-separator fusion-full-width-sep\" style=\"margin-left: auto;margin-right: auto;margin-top:20px;margin-bottom:20px;width:100%;\"><\/div><div class=\"fusion-sep-clear\"><\/div><div class=\"fusion-align-block\"><style>.fusion-button.button-1{border-radius:2px 2px 2px 2px;}<\/style><a class=\"fusion-button button-flat fusion-button-default-size button-default button-1 fusion-button-default-span fusion-button-default-type\" target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/unaaldia.hispasec.com\/2021\/07\/investigadores-logran-ocultar-malware-en-una-red-neuronal.html\" style=\"width:calc(100%);\"><span class=\"fusion-button-text\">LEER M\u00c1S<\/span><\/a><\/div><div class=\"fusion-clearfix\"><\/div><\/div><\/div><\/div><\/div>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":2366,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[],"class_list":["post-2355","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nuestros-articulos"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Investigadores logran ocultar malware en una red neuronal - Intelsynet<\/title>\n<meta name=\"description\" content=\"Un grupo de investigadores logran ocultar malware en una red neuronal. 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