{"id":138,"date":"2009-01-18T17:26:41","date_gmt":"2009-01-18T16:26:41","guid":{"rendered":"http:\/\/172.22.49.24\/?p=138"},"modified":"2009-01-18T17:26:41","modified_gmt":"2009-01-18T16:26:41","slug":"keynote-sstic-2009-desobfuscation-automatique-de-binaires","status":"publish","type":"post","link":"https:\/\/www.intrinsec.com\/en\/keynote-sstic-2009-desobfuscation-automatique-de-binaires\/","title":{"rendered":"Keynote SSTIC 2009 \u2013 Automatic deobfuscation of binaries"},"content":{"rendered":"

Presentation :\u00a0Alexandre GAZET, Yoann GUILLOT
\n<\/strong>
\nMalware is often obfuscated using "packers" or embedded virtual machines, or both!<\/p>\n

In the proposed solution, the code of the offending binary is analyzed, then simplified (optimized); that is\u00a0the binding<\/span>\u00a0(translate the code into pseudo-language). This eliminates many unnecessary operations (used to conceal illicit behavior).
\nNext, the pseudo-code is executed by the product, which will create the assembler code on the fly for each requested operation and compile it.\u00a0in ia32<\/strong>.<\/p>\n

The ia32 code thus generated can now be analyzed, regardless of the initial protection, or even decompiled to obtain higher-level code.<\/p>\n

Future of this research\u00a0<\/span>Automatic decompilation, being further from the target architecture, providing higher-level code.
\nHowever, it's not the easiest task, especially for processor instructions that have no equivalent in higher-level languages (like C). A lot of work remains to be done to make the solution fully usable.<\/p>","protected":false},"excerpt":{"rendered":"

Presentation: Alexandre GAZET, Yoann GUILLOT Malware is often obfuscated using "packers" [\u2026]<\/p>","protected":false},"author":10,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[19,22],"tags":[65],"class_list":["post-138","post","type-post","status-publish","format-standard","hentry","category-soc-securite-operationnelle","category-veille-securite","tag-sstic"],"yoast_head":"\nKeynote SSTIC 2009 - D\u00e9sobfuscation automatique de binaires - INTRINSEC<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.intrinsec.com\/en\/keynote-sstic-2009-desobfuscation-automatique-de-binaires\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Keynote SSTIC 2009 - D\u00e9sobfuscation automatique de binaires\" \/>\n<meta property=\"og:description\" content=\"Pr\u00e9sentation :\u00a0Alexandre GAZET, Yoann GUILLOT Les malwares sont bien souvent obfusqu\u00e9s \u00e0 l’aide de \u00ab\u00a0packers\u00a0\u00bb […]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.intrinsec.com\/en\/keynote-sstic-2009-desobfuscation-automatique-de-binaires\/\" \/>\n<meta property=\"og:site_name\" content=\"INTRINSEC\" \/>\n<meta property=\"article:published_time\" content=\"2009-01-18T16:26:41+00:00\" \/>\n<meta name=\"author\" content=\"Cyrille BARTHELEMY\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@Intrinsec\" \/>\n<meta name=\"twitter:site\" content=\"@Intrinsec\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Cyrille BARTHELEMY\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.intrinsec.com\\\/en\\\/keynote-sstic-2009-desobfuscation-automatique-de-binaires\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.intrinsec.com\\\/en\\\/keynote-sstic-2009-desobfuscation-automatique-de-binaires\\\/\"},\"author\":{\"name\":\"Cyrille BARTHELEMY\",\"@id\":\"https:\\\/\\\/www.intrinsec.com\\\/#\\\/schema\\\/person\\\/4d0993f0e377e77d13e97f623123e109\"},\"headline\":\"Keynote SSTIC 2009 – D\u00e9sobfuscation automatique de binaires\",\"datePublished\":\"2009-01-18T16:26:41+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.intrinsec.com\\\/en\\\/keynote-sstic-2009-desobfuscation-automatique-de-binaires\\\/\"},\"wordCount\":190,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\\\/\\\/www.intrinsec.com\\\/#organization\"},\"keywords\":[\"SSTIC\"],\"articleSection\":[\"SOC S\u00e9curit\u00e9 Op\u00e9rationnelle\",\"Veille S\u00e9curit\u00e9\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/www.intrinsec.com\\\/en\\\/keynote-sstic-2009-desobfuscation-automatique-de-binaires\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.intrinsec.com\\\/en\\\/keynote-sstic-2009-desobfuscation-automatique-de-binaires\\\/\",\"url\":\"https:\\\/\\\/www.intrinsec.com\\\/en\\\/keynote-sstic-2009-desobfuscation-automatique-de-binaires\\\/\",\"name\":\"Keynote SSTIC 2009 - 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