{"id":797,"date":"2021-08-07T08:52:55","date_gmt":"2021-08-07T13:52:55","guid":{"rendered":"https:\/\/www.searchevolution.com\/security\/?p=797"},"modified":"2022-04-27T07:42:32","modified_gmt":"2022-04-27T12:42:32","slug":"determiner-si-un-systeme-est-infecte-en-analysant-la-memoire-avec-volatility","status":"publish","type":"post","link":"https:\/\/www.searchevolution.com\/security\/2021\/08\/07\/determiner-si-un-systeme-est-infecte-en-analysant-la-memoire-avec-volatility\/","title":{"rendered":"D\u00e9terminer si un syst\u00e8me est infect\u00e9 en analysant la m\u00e9moire avec volatility"},"content":{"rendered":"<p>Quelque outils permettent d&#8217;avoir un image de la m\u00e9moire<\/p>\n<ul>\n<li><a href=\"https:\/\/accessdata.com\/product-download\/ftk-imager-version-4-2-0\">FTK Image<\/a><\/li>\n<li><a href=\"https:\/\/www.fireeye.com\/services\/freeware\/redline.html\">Redline<\/a><\/li>\n<li>DumpIt.exe<\/li>\n<li>win32dd.exe \/ win64dd.exe (support psexec)<\/li>\n<\/ul>\n<p>Ces outils permettent d&#8217;avoir un format raw de la m\u00e9moire. Sur windows, vous avez aussi le fichier d&#8217;hibernation %SystemDrive%\/hiberfil.sys qui est une image compress\u00e9e.<\/p>\n<p>Pour les machines virtuelles<\/p>\n<ul>\n<li>vmware : .vmem file<\/li>\n<li>Hyper-v : .bin file<\/li>\n<li>Parallels : .mem file<\/li>\n<li>VirtualBox : .sav file<\/li>\n<\/ul>\n<p>Ces fichiers se retrouvent dans le datastore et il n&#8217;est pas n\u00e9cessaire d&#8217;\u00e9teindre la machine virtuelle.<\/p>\n<p>La premi\u00e8re \u00e9tape est d&#8217;informer <a href=\"https:\/\/www.volatilityfoundation.org\/releases\">volatility<\/a> du bon profile m\u00e9moire. Pour se faire nous utilisons la commande imageinfo. Il va y avoir quelques <em>Suggested Profile(s)<\/em>.<br \/>\n<code>python2 vol.py -f cridex.vmem imageinfo<\/code><\/p>\n<p>Nous essayons de trouver le bon avec la commande pslist. Avec le bon profile, nous avons plusieurs processus qui sont list\u00e9s<br \/>\n<code>python2 vol.py -f cridex.vmem --profile=WinXPSP2x86 pslist<\/code><\/p>\n<p>Nous pouvons voir les connections r\u00e9seaux \u00e9tablies (requiert un profile compatible)<br \/>\n<code>python2 vol.py -f cridex.vmem --profile=WinXPSP2x86 netscan<\/code><\/p>\n<p>Liste des processus cach\u00e9s (analyser les lignes avec <em>false<\/em>). ici csrss.exe est cach\u00e9<br \/>\n<code>python2 vol.py -f cridex.vmem --profile=WinXPSP2x86 psxview<\/code><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.searchevolution.com\/security\/wp-content\/uploads\/2021\/08\/volatility-psxview.png\" alt=\"\" width=\"1085\" height=\"405\" class=\"alignnone size-full wp-image-798\" \/><\/p>\n<p>Nous pouvons voir aussi les modules inject\u00e9s. Normalement aucune ligne ne devrait \u00eatre list\u00e9e avec <em>false<\/em><br \/>\n<code>python2 vol.py -f cridex.vmem --profile=WinXPSP2x86 ldrmodules | grep -i false <\/code><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.searchevolution.com\/security\/wp-content\/uploads\/2021\/08\/volatility-psxview.png\" alt=\"\" width=\"1085\" height=\"405\" class=\"alignnone size-full wp-image-798\" \/><\/p>\n<p>Nous pouvons voir aussi les modifications dans dll standard du syst\u00e8me<br \/>\n<code>python2 vol.py -f cridex.vmem --profile=WinXPSP2x86 apihooks<\/code><\/p>\n<p>Le code inject\u00e9 est un indice d&#8217;une infection. Nous pouvons r\u00e9cup\u00e9rer ce code avec la commande malfind<br \/>\n<code>python2 vol.py -f cridex.vmem --profile=WinXPSP2x86 malfind -D \/home\/r0cker\/dump<\/code><br \/>\n<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.searchevolution.com\/security\/wp-content\/uploads\/2021\/08\/volatility-malfind.png\" alt=\"\" width=\"1221\" height=\"636\" class=\"alignnone size-full wp-image-800\" \/><\/p>\n<p>Nous pouvons aussi extraire les dlls infect\u00e9s avec<br \/>\n<code>python2 vol.py -f cridex.vmem --profile=WinXPSP2x86 --pid=584 dlldump -D \/home\/r0cker\/dump #le pid 584 a \u00e9t\u00e9 trouv\u00e9 pr\u00e9c\u00e9demment comme un processus inject\u00e9. Nous trouvons les dlls utilis\u00e9s par celui-ci<\/code><br \/>\n<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.searchevolution.com\/security\/wp-content\/uploads\/2021\/08\/volatility-dlldump.png\" alt=\"\" width=\"1314\" height=\"303\" class=\"alignnone size-full wp-image-801\" \/><\/p>\n<p>Nous pouvons t\u00e9l\u00e9verser les fichiers extraits sur virustotal.com ou hybrid-analysis.compour conna\u00eetre le nom du virus impliqu\u00e9.<\/p>\n<p>Ressources<\/p>\n<ul>\n<li><a href=\"https:\/\/otx.alienvault.com\/dashboard\/new\">AlienVault Open Threat Exchange (OTX)<\/a><\/li>\n<li>SANS 408<\/li>\n<li><a href=\"https:\/\/github.com\/kevthehermit\/VolUtility\">GUI plugin for valatility<\/a><\/li>\n<li><a href=\"https:\/\/www.amazon.com\/Art-Memory-Forensics-Detecting-Malware\/dp\/1118825098\/ref=sr_1_2?crid=W5I8MKDUXVWD&#038;keywords=the+art+of+memory+forensics&#038;qid=1582172165&#038;sprefix=the+art+of+memory+%2Caps%2C152&#038;sr=8-2\">The art of memory forensics<\/a><\/li>\n<li>Quelques <a href=\"https:\/\/github.com\/stuxnet999\/MemLabs\">laboratoires pour devenir champion dans l&#8217;analyse de la m\u00e9moire<\/a><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Quelque outils permettent d&#8217;avoir un image de la m\u00e9moire FTK Image Redline DumpIt.exe win32dd.exe \/ win64dd.exe (support psexec) Ces outils permettent d&#8217;avoir un format raw de la m\u00e9moire. Sur windows, vous avez aussi le fichier d&#8217;hibernation %SystemDrive%\/hiberfil.sys qui est une image compress\u00e9e. Pour les machines virtuelles vmware : .vmem file Hyper-v : .bin file Parallels : .mem file VirtualBox : .sav file Ces fichiers se retrouvent dans le datastore et il n&#8217;est pas n\u00e9cessaire d&#8217;\u00e9teindre la machine virtuelle. La premi\u00e8re \u00e9tape est d&#8217;informer volatility du bon profile m\u00e9moire. Pour se faire nous utilisons la commande imageinfo. Il va y avoir <\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[58,25,57],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>D\u00e9terminer si un syst\u00e8me est infect\u00e9 en analysant la m\u00e9moire avec volatility - S\u00e9curiser votre site<\/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.searchevolution.com\/security\/2021\/08\/07\/determiner-si-un-systeme-est-infecte-en-analysant-la-memoire-avec-volatility\/\" \/>\n<meta property=\"og:locale\" content=\"fr_CA\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"D\u00e9terminer si un syst\u00e8me est infect\u00e9 en analysant la m\u00e9moire avec volatility - S\u00e9curiser votre site\" \/>\n<meta property=\"og:description\" content=\"Quelque outils permettent d&#8217;avoir un image de la m\u00e9moire FTK Image Redline DumpIt.exe win32dd.exe \/ win64dd.exe (support psexec) Ces outils permettent d&#8217;avoir un format raw de la m\u00e9moire. Sur windows, vous avez aussi le fichier d&#8217;hibernation %SystemDrive%\/hiberfil.sys qui est une image compress\u00e9e. Pour les machines virtuelles vmware : .vmem file Hyper-v : .bin file Parallels : .mem file VirtualBox : .sav file Ces fichiers se retrouvent dans le datastore et il n&#8217;est pas n\u00e9cessaire d&#8217;\u00e9teindre la machine virtuelle. La premi\u00e8re \u00e9tape est d&#8217;informer volatility du bon profile m\u00e9moire. Pour se faire nous utilisons la commande imageinfo. Il va y avoir\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.searchevolution.com\/security\/2021\/08\/07\/determiner-si-un-systeme-est-infecte-en-analysant-la-memoire-avec-volatility\/\" \/>\n<meta property=\"og:site_name\" content=\"S\u00e9curiser votre site\" \/>\n<meta property=\"article:published_time\" content=\"2021-08-07T13:52:55+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2022-04-27T12:42:32+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.searchevolution.com\/security\/wp-content\/uploads\/2021\/08\/volatility-psxview.png\" \/>\n<meta name=\"author\" content=\"Germain\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u00c9crit par\" \/>\n\t<meta name=\"twitter:data1\" content=\"Germain\" \/>\n\t<meta name=\"twitter:label2\" content=\"Estimation du temps de lecture\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.searchevolution.com\/security\/2021\/08\/07\/determiner-si-un-systeme-est-infecte-en-analysant-la-memoire-avec-volatility\/\",\"url\":\"https:\/\/www.searchevolution.com\/security\/2021\/08\/07\/determiner-si-un-systeme-est-infecte-en-analysant-la-memoire-avec-volatility\/\",\"name\":\"D\u00e9terminer si un syst\u00e8me est infect\u00e9 en analysant la m\u00e9moire avec volatility - S\u00e9curiser votre site\",\"isPartOf\":{\"@id\":\"https:\/\/www.searchevolution.com\/security\/#website\"},\"datePublished\":\"2021-08-07T13:52:55+00:00\",\"dateModified\":\"2022-04-27T12:42:32+00:00\",\"author\":{\"@id\":\"https:\/\/www.searchevolution.com\/security\/#\/schema\/person\/e1318e0782dc5a7d6b03471347f881d8\"},\"breadcrumb\":{\"@id\":\"https:\/\/www.searchevolution.com\/security\/2021\/08\/07\/determiner-si-un-systeme-est-infecte-en-analysant-la-memoire-avec-volatility\/#breadcrumb\"},\"inLanguage\":\"fr-CA\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.searchevolution.com\/security\/2021\/08\/07\/determiner-si-un-systeme-est-infecte-en-analysant-la-memoire-avec-volatility\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.searchevolution.com\/security\/2021\/08\/07\/determiner-si-un-systeme-est-infecte-en-analysant-la-memoire-avec-volatility\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Accueil\",\"item\":\"https:\/\/www.searchevolution.com\/security\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"D\u00e9terminer si un syst\u00e8me est infect\u00e9 en analysant la m\u00e9moire avec volatility\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.searchevolution.com\/security\/#website\",\"url\":\"https:\/\/www.searchevolution.com\/security\/\",\"name\":\"S\u00e9curiser votre site\",\"description\":\"Conna\u00eetre son ennemi\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/www.searchevolution.com\/security\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"fr-CA\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/www.searchevolution.com\/security\/#\/schema\/person\/e1318e0782dc5a7d6b03471347f881d8\",\"name\":\"Germain\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"fr-CA\",\"@id\":\"https:\/\/www.searchevolution.com\/security\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/6a203854efbec130dd49471ccbba1abc?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/6a203854efbec130dd49471ccbba1abc?s=96&d=mm&r=g\",\"caption\":\"Germain\"},\"sameAs\":[\"https:\/\/www.searchevolution.com\/security\"],\"url\":\"https:\/\/www.searchevolution.com\/security\/author\/germain\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"D\u00e9terminer si un syst\u00e8me est infect\u00e9 en analysant la m\u00e9moire avec volatility - S\u00e9curiser votre site","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.searchevolution.com\/security\/2021\/08\/07\/determiner-si-un-systeme-est-infecte-en-analysant-la-memoire-avec-volatility\/","og_locale":"fr_CA","og_type":"article","og_title":"D\u00e9terminer si un syst\u00e8me est infect\u00e9 en analysant la m\u00e9moire avec volatility - S\u00e9curiser votre site","og_description":"Quelque outils permettent d&#8217;avoir un image de la m\u00e9moire FTK Image Redline DumpIt.exe win32dd.exe \/ win64dd.exe (support psexec) Ces outils permettent d&#8217;avoir un format raw de la m\u00e9moire. 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