{"id":97,"date":"2013-08-05T07:31:44","date_gmt":"2013-08-05T07:31:44","guid":{"rendered":"http:\/\/www.adlice.com\/?p=97"},"modified":"2022-12-21T10:41:32","modified_gmt":"2022-12-21T10:41:32","slug":"remove-zeroaccess","status":"publish","type":"post","link":"https:\/\/www.adlice.com\/de\/remove-zeroaccess\/","title":{"rendered":"How to Remove ZeroAccess (Guide)"},"content":{"rendered":"\n<p>UPDATE: We are the 04th of August 2013, <strong>new variant of ZeroAccess, called RTL variant<\/strong> (for Right to left, a trick used by this malware to avoid removal), is in the wild for some days (maybe weeks).<\/p>\n\n\n\n<p><span style=\"color: #ff0000;\"><strong>RogueKiller in build 8.6.5+ is able to remove that variant<\/strong><\/span>, in 2 steps.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>First removal<\/strong>: RUN key, Service key, service kill, and some files\/folder deletion.<\/li>\n\n\n\n<li>Then a reboot is necessary to refresh computer&#8217;s memory<\/li>\n\n\n\n<li><strong>Second removal<\/strong>: Deletion of remaining files\/folders<\/li>\n<\/ul>\n\n\n\n<h4 class=\"has-accent-color has-text-color wp-block-heading\"><br>Analysis<\/h4>\n\n\n\n<p>That variant is using a trick to <strong>insert unicode characters in registry value names<\/strong>. By doing that, the Win32 API is fooled and never finds a given name (for deletion for example). The RUN key hive dump shows that we have indeed some weird characters in the value name.<\/p>\n\n\n\n<figure class=\"wp-block-image alignnone\"><a href=\"https:\/\/www.adlice.com\/wp-content\/uploads\/2016\/06\/2013-08-04-18_49_39-WinHex-hive_dump.dat_.png\"><img decoding=\"async\" width=\"631\" height=\"509\" src=\"https:\/\/www.adlice.com\/wp-content\/uploads\/2016\/06\/2013-08-04-18_49_39-WinHex-hive_dump.dat_.png\" alt=\"Hive dump of the RUN key \u2013 Notice the weird characters after the \u201cGoogle Update\u201d name\" class=\"wp-image-98\" srcset=\"https:\/\/www.adlice.com\/wp-content\/uploads\/2016\/06\/2013-08-04-18_49_39-WinHex-hive_dump.dat_.png 631w, https:\/\/www.adlice.com\/wp-content\/uploads\/2016\/06\/2013-08-04-18_49_39-WinHex-hive_dump.dat_-300x242.png 300w\" sizes=\"(max-width: 631px) 100vw, 631px\" \/><\/a><figcaption class=\"wp-element-caption\">Hive dump of the RUN key \u2013 Notice the weird characters after the \u201cGoogle Update\u201d name<\/figcaption><\/figure>\n\n\n\n<p>Here\u2019s some Process Monitor logs, showing the calls used by the trojan to fool AV detection and API removal<\/p>\n\n\n\n<figure class=\"wp-block-image alignnone\"><a href=\"https:\/\/www.adlice.com\/wp-content\/uploads\/2016\/06\/2013-08-04-18_51_27-Process-Monitor-Logfile.PML_.png\"><img decoding=\"async\" width=\"1423\" height=\"285\" src=\"https:\/\/www.adlice.com\/wp-content\/uploads\/2016\/06\/2013-08-04-18_51_27-Process-Monitor-Logfile.PML_.png\" alt=\"ProcMon capture : ZeroAccess creating its files\" class=\"wp-image-99\" srcset=\"https:\/\/www.adlice.com\/wp-content\/uploads\/2016\/06\/2013-08-04-18_51_27-Process-Monitor-Logfile.PML_.png 1423w, https:\/\/www.adlice.com\/wp-content\/uploads\/2016\/06\/2013-08-04-18_51_27-Process-Monitor-Logfile.PML_-300x60.png 300w, https:\/\/www.adlice.com\/wp-content\/uploads\/2016\/06\/2013-08-04-18_51_27-Process-Monitor-Logfile.PML_-1024x205.png 1024w\" sizes=\"(max-width: 1423px) 100vw, 1423px\" \/><\/a><figcaption class=\"wp-element-caption\">ProcMon capture : ZeroAccess creating its files<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image alignnone\"><a href=\"https:\/\/www.adlice.com\/wp-content\/uploads\/2016\/06\/2013-08-04-18_52_08-Process-Monitor-Logfile.PML_.png\"><img decoding=\"async\" width=\"1679\" height=\"29\" src=\"https:\/\/www.adlice.com\/wp-content\/uploads\/2016\/06\/2013-08-04-18_52_08-Process-Monitor-Logfile.PML_.png\" alt=\"ProcMon capture : ZeroAccess creating its RUN key\" class=\"wp-image-103\" srcset=\"https:\/\/www.adlice.com\/wp-content\/uploads\/2016\/06\/2013-08-04-18_52_08-Process-Monitor-Logfile.PML_.png 1679w, https:\/\/www.adlice.com\/wp-content\/uploads\/2016\/06\/2013-08-04-18_52_08-Process-Monitor-Logfile.PML_-300x5.png 300w, https:\/\/www.adlice.com\/wp-content\/uploads\/2016\/06\/2013-08-04-18_52_08-Process-Monitor-Logfile.PML_-1024x18.png 1024w\" sizes=\"(max-width: 1679px) 100vw, 1679px\" \/><\/a><figcaption class=\"wp-element-caption\">ProcMon capture : ZeroAccess creating its RUN key<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image alignnone\"><a href=\"https:\/\/www.adlice.com\/wp-content\/uploads\/2016\/06\/2013-08-04-18_52_52-Process-Monitor-Logfile.PML_.png\"><img decoding=\"async\" width=\"1793\" height=\"168\" src=\"https:\/\/www.adlice.com\/wp-content\/uploads\/2016\/06\/2013-08-04-18_52_52-Process-Monitor-Logfile.PML_.png\" alt=\"ProcMon capture : ZeroAccess creating its service key\" class=\"wp-image-100\" srcset=\"https:\/\/www.adlice.com\/wp-content\/uploads\/2016\/06\/2013-08-04-18_52_52-Process-Monitor-Logfile.PML_.png 1793w, https:\/\/www.adlice.com\/wp-content\/uploads\/2016\/06\/2013-08-04-18_52_52-Process-Monitor-Logfile.PML_-300x28.png 300w, https:\/\/www.adlice.com\/wp-content\/uploads\/2016\/06\/2013-08-04-18_52_52-Process-Monitor-Logfile.PML_-1024x96.png 1024w\" sizes=\"(max-width: 1793px) 100vw, 1793px\" \/><\/a><figcaption class=\"wp-element-caption\">ProcMon capture : ZeroAccess creating its service key<\/figcaption><\/figure>\n\n\n\n<h4 class=\"has-accent-color has-text-color wp-block-heading\"><br>Removal<\/h4>\n\n\n\n<p><strong>Scan your computer <a href=\"https:\/\/www.adlice.com\/roguekiller\/\">with RogueKiller<\/a> and remove registry keys and files<\/strong>. You will need to reboot once, then rescan and redelete to remove remaining files. Please look at the demo video.<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe title=\"Remove ZeroAccess with RogueKiller\" width=\"1200\" height=\"675\" src=\"https:\/\/www.youtube.com\/embed\/7vXcFRSu-mg?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<p><strong>Your reports should look like this (with your own language text):<\/strong><\/p>\n\n\n\n<h4 class=\"has-accent-color has-text-color wp-block-heading\"><br>First Removal<\/h4>\n\n\n\n<pre class=\"wp-block-code lang:default decode:true\"><code>\u00a4\u00a4\u00a4 Processus malicieux : 1 \u00a4\u00a4\u00a4\n&#91;ZeroAccess]&#91;SERVICE] ???etadpug -- \"C:\\Program Files (x86)\\Google\\Desktop\\Install\\{5277d95b-9f86-a171-e7f7-7295c86fb4e0}\\ \\...\\???\ufbf9\u0e5b\\{5277d95b-9f86-a171-e7f7-7295c86fb4e0}\\GoogleUpdate.exe\" &amp;amp;lt; &#91;x] -&amp;amp;gt; STOPP\u00c9\n\n\u00a4\u00a4\u00a4 Entrees de registre : 9 \u00a4\u00a4\u00a4\n&#91;RUN]&#91;ZeroAccess] HKCU\\&#91;...]\\Run : Google Update (\"C:\\Users\\tigzy\\AppData\\Local\\Google\\Desktop\\Install\\{5277d95b-9f86-a171-e7f7-7295c86fb4e0}\\?\ufffd\ufffd?\ufffd\ufffd?\ufffd\ufffd\\?\ufffd\ufffd?\ufffd\ufffd?\ufffd\ufffd\\???\ufbf9\u0e5b\\{5277d95b-9f86-a171-e7f7-7295c86fb4e0}\\GoogleUpdate.exe\" &amp;amp;gt;) -&amp;amp;gt; SUPPRIM\u00c9\n&#91;RUN]&#91;ZeroAccess] HKUS\\S-1-5-21-2206154676-624830379-3717449681-1001\\&#91;...]\\Run : Google Update (\"C:\\Users\\tigzy\\AppData\\Local\\Google\\Desktop\\Install\\{5277d95b-9f86-a171-e7f7-7295c86fb4e0}\\?\ufffd\ufffd?\ufffd\ufffd?\ufffd\ufffd\\?\ufffd\ufffd?\ufffd\ufffd?\ufffd\ufffd\\???\ufbf9\u0e5b\\{5277d95b-9f86-a171-e7f7-7295c86fb4e0}\\GoogleUpdate.exe\" &amp;amp;gt;) -&amp;amp;gt; &#91;0xc0000034] Unknown error\n&#91;SERVICE]&#91;ZeroAccess] HKLM\\&#91;...]\\CCSet\\&#91;...]\\Services : ???etadpug (\"C:\\Program Files (x86)\\Google\\Desktop\\Install\\{5277d95b-9f86-a171-e7f7-7295c86fb4e0}\\   \\...\\???\ufbf9\u0e5b\\{5277d95b-9f86-a171-e7f7-7295c86fb4e0}\\GoogleUpdate.exe\" &amp;amp;lt; &#91;x]) -&amp;amp;gt; SUPPRIM\u00c9\n&#91;SERVICE]&#91;ZeroAccess] HKLM\\&#91;...]\\CS001\\&#91;...]\\Services : ???etadpug (\"C:\\Program Files (x86)\\Google\\Desktop\\Install\\{5277d95b-9f86-a171-e7f7-7295c86fb4e0}\\   \\...\\???\ufbf9\u0e5b\\{5277d95b-9f86-a171-e7f7-7295c86fb4e0}\\GoogleUpdate.exe\" &amp;amp;lt; &#91;x]) -&amp;amp;gt; &#91;0x57] Param\u00e8tre incorrect.\n&#91;SERVICE]&#91;ZeroAccess] HKLM\\&#91;...]\\CS002\\&#91;...]\\Services : ???etadpug (\"C:\\Program Files (x86)\\Google\\Desktop\\Install\\{5277d95b-9f86-a171-e7f7-7295c86fb4e0}\\   \\...\\???\ufbf9\u0e5b\\{5277d95b-9f86-a171-e7f7-7295c86fb4e0}\\GoogleUpdate.exe\" &amp;amp;lt; &#91;x]) -&amp;amp;gt; SUPPRIM\u00c9\n&#91;HID SVC]&#91;Masqu\u00e9 de l'API] HKLM\\&#91;...]\\CCSet\\&#91;...]\\Services : . e () -&amp;amp;gt; &#91;0x3] Le chemin d??\ufffdacc\u00e8s sp\u00e9cifi\u00e9 est introuvable.\n&#91;HID SVC]&#91;Masqu\u00e9 de l'API] HKLM\\&#91;...]\\CS001\\&#91;...]\\Services : . e () -&amp;amp;gt; &#91;0x3] Le chemin d??\ufffdacc\u00e8s sp\u00e9cifi\u00e9 est introuvable.\n&#91;HID SVC]&#91;Masqu\u00e9 de l'API] HKLM\\&#91;...]\\CS002\\&#91;...]\\Services : . e () -&amp;amp;gt; &#91;0x3] Le chemin d??\ufffdacc\u00e8s sp\u00e9cifi\u00e9 est introuvable.\n\n\u00a4\u00a4\u00a4 Fichiers \/ Dossiers particuliers: \u00a4\u00a4\u00a4\n&#91;ZeroAccess]&#91;Repertoire] Install : C:\\Documents and Settings\\tigzy\\Local Settings\\Application Data\\Google\\Desktop\\Install &#91;-] --&amp;amp;gt; SUPPRIM\u00c9\n&#91;ZeroAccess]&#91;Repertoire] Install : C:\\Program Files\\Google\\Desktop\\Install &#91;-] --&amp;amp;gt; SUPPRIM\u00c9 AU REBOOT\n&#91;ZeroAccess]&#91;Fichier] @ : C:\\Documents and Settings\\tigzy\\Local Settings\\Application Data\\Google\\Desktop\\Install\\{848ec4ef-b4fb-6501-ab69-678738a3a5c6}\\\u2764\u2278\u22d9\\\u2c22\u2620\u2368\ufbf9\u0e5b\\{848ec4ef-b4fb-6501-ab69-678738a3a5c6}\\@ &#91;-] --&amp;amp;gt; SUPPRIM\u00c9\n&#91;ZeroAccess]&#91;Fichier] GoogleUpdate.exe : C:\\Documents and Settings\\tigzy\\Local Settings\\Application Data\\Google\\Desktop\\Install\\{848ec4ef-b4fb-6501-ab69-678738a3a5c6}\\\u2764\u2278\u22d9\\\u2c22\u2620\u2368\\\u202e\ufbf9\u0e5b\\{848ec4ef-b4fb-6501-ab69-678738a3a5c6}\\GoogleUpdate.exe &#91;-] --&amp;amp;gt; SUPPRIM\u00c9\n&#91;ZeroAccess]&#91;Repertoire] L : C:\\Documents and Settings\\tigzy\\Local Settings\\Application Data\\Google\\Desktop\\Install\\{848ec4ef-b4fb-6501-ab69-678738a3a5c6}\\\u2764\u2278\u22d9\\\u2c22\u2620\u2368\ufbf9\u0e5b\\{848ec4ef-b4fb-6501-ab69-678738a3a5c6}\\L &#91;-] --&amp;amp;gt; SUPPRIM\u00c9\n&#91;ZeroAccess]&#91;Repertoire] U : C:\\Documents and Settings\\tigzy\\Local Settings\\Application Data\\Google\\Desktop\\Install\\{848ec4ef-b4fb-6501-ab69-678738a3a5c6}\\\u2764\u2278\u22d9\\\u2c22\u2620\u2368\ufbf9\u0e5b\\{848ec4ef-b4fb-6501-ab69-678738a3a5c6}\\U &#91;-] --&amp;amp;gt; SUPPRIM\u00c9\n&#91;ZeroAccess]&#91;Repertoire] {848ec4ef-b4fb-6501-ab69-678738a3a5c6} : C:\\Documents and Settings\\tigzy\\Local Settings\\Application Data\\Google\\Desktop\\Install\\{848ec4ef-b4fb-6501-ab69-678738a3a5c6}\\\u2764\u2278\u22d9\\\u2c22\u2620\u2368\ufbf9\u0e5b\\{848ec4ef-b4fb-6501-ab69-678738a3a5c6} &#91;-] --&amp;amp;gt; SUPPRIM\u00c9\n&#91;ZeroAccess]&#91;Repertoire] \u202e\ufbf9\u0e5b : C:\\Documents and Settings\\tigzy\\Local Settings\\Application Data\\Google\\Desktop\\Install\\{848ec4ef-b4fb-6501-ab69-678738a3a5c6}\\\u2764\u2278\u22d9\\\u2c22\u2620\u2368\\\u202e\ufbf9\u0e5b &#91;-] --&amp;amp;gt; SUPPRIM\u00c9\n&#91;ZeroAccess]&#91;Repertoire] \u2c22\u2620\u2368 : C:\\Documents and Settings\\tigzy\\Local Settings\\Application Data\\Google\\Desktop\\Install\\{848ec4ef-b4fb-6501-ab69-678738a3a5c6}\\\u2764\u2278\u22d9\\\u2c22\u2620\u2368 &#91;-] --&amp;amp;gt; SUPPRIM\u00c9\n&#91;ZeroAccess]&#91;Repertoire] \u2764\u2278\u22d9 : C:\\Documents and Settings\\tigzy\\Local Settings\\Application Data\\Google\\Desktop\\Install\\{848ec4ef-b4fb-6501-ab69-678738a3a5c6}\\\u2764\u2278\u22d9 &#91;-] --&amp;amp;gt; SUPPRIM\u00c9\n&#91;ZeroAccess]&#91;Repertoire] {848ec4ef-b4fb-6501-ab69-678738a3a5c6} : C:\\Documents and Settings\\tigzy\\Local Settings\\Application Data\\Google\\Desktop\\Install\\{848ec4ef-b4fb-6501-ab69-678738a3a5c6} &#91;-] --&amp;amp;gt; SUPPRIM\u00c9\n&#91;ZeroAccess]&#91;Repertoire] L : C:\\Program Files\\Google\\Desktop\\Install\\{848ec4ef-b4fb-6501-ab69-678738a3a5c6}\\   \\   \ufbf9\u0e5b\\{848ec4ef-b4fb-6501-ab69-678738a3a5c6}\\L &#91;-] --&amp;amp;gt; SUPPRIM\u00c9\n&#91;ZeroAccess]&#91;Fichier] 00000001.@ : C:\\Program Files\\Google\\Desktop\\Install\\{848ec4ef-b4fb-6501-ab69-678738a3a5c6}\\   \\   \ufbf9\u0e5b\\{848ec4ef-b4fb-6501-ab69-678738a3a5c6}\\U\\00000001.@ &#91;-] --&amp;amp;gt; SUPPRIM\u00c9\n&#91;ZeroAccess]&#91;Fichier] 80000000.@ : C:\\Program Files\\Google\\Desktop\\Install\\{848ec4ef-b4fb-6501-ab69-678738a3a5c6}\\   \\   \ufbf9\u0e5b\\{848ec4ef-b4fb-6501-ab69-678738a3a5c6}\\U\\80000000.@ &#91;-] --&amp;amp;gt; SUPPRIM\u00c9\n&#91;ZeroAccess]&#91;Fichier] 800000cb.@ : C:\\Program Files\\Google\\Desktop\\Install\\{848ec4ef-b4fb-6501-ab69-678738a3a5c6}\\   \\   \ufbf9\u0e5b\\{848ec4ef-b4fb-6501-ab69-678738a3a5c6}\\U\\800000cb.@ &#91;-] --&amp;amp;gt; SUPPRIM\u00c9\n&#91;ZeroAccess]&#91;Repertoire] U : C:\\Program Files\\Google\\Desktop\\Install\\{848ec4ef-b4fb-6501-ab69-678738a3a5c6}\\   \\   \ufbf9\u0e5b\\{848ec4ef-b4fb-6501-ab69-678738a3a5c6}\\U &#91;-] --&amp;amp;gt; SUPPRIM\u00c9\n&#91;ZeroAccess]&#91;Repertoire] {848ec4ef-b4fb-6501-ab69-678738a3a5c6} : C:\\Program Files\\Google\\Desktop\\Install\\{848ec4ef-b4fb-6501-ab69-678738a3a5c6}\\   \\   \ufbf9\u0e5b\\{848ec4ef-b4fb-6501-ab69-678738a3a5c6} &#91;-] --&amp;amp;gt; SUPPRIM\u00c9 AU REBOOT\n&#91;ZeroAccess]&#91;Repertoire]     : C:\\Program Files\\Google\\Desktop\\Install\\{848ec4ef-b4fb-6501-ab69-678738a3a5c6}\\   \\    &#91;-] --&amp;amp;gt; SUPPRIM\u00c9 AU REBOOT\n&#91;ZeroAccess]&#91;Repertoire]     : C:\\Program Files\\Google\\Desktop\\Install\\{848ec4ef-b4fb-6501-ab69-678738a3a5c6}\\    &#91;-] --&amp;amp;gt; SUPPRIM\u00c9 AU REBOOT\n&#91;ZeroAccess]&#91;Repertoire] {848ec4ef-b4fb-6501-ab69-678738a3a5c6} : C:\\Program Files\\Google\\Desktop\\Install\\{848ec4ef-b4fb-6501-ab69-678738a3a5c6} &#91;-] --&amp;amp;gt; SUPPRIM\u00c9 AU REBOOT&amp;lt;\n<\/code><\/pre>\n\n\n\n<h4 class=\"has-text-align-left has-accent-color has-text-color wp-block-heading\"><br>Second Removal (after reboot)<\/h4>\n\n\n\n<pre class=\"wp-block-code lang:default decode:true\"><code>&amp;lt;blockquote&amp;gt;&amp;lt;span style=\"font-size: small;\"&amp;gt;\u00a4\u00a4\u00a4 Fichiers \/ Dossiers particuliers: \u00a4\u00a4\u00a4\n&#91;ZeroAccess]&#91;Repertoire] Install : C:\\Program Files\\Google\\Desktop\\Install &#91;-] --&amp;amp;gt; SUPPRIM\u00c9\n&#91;ZeroAccess]&#91;Fichier] @ : C:\\Program Files\\Google\\Desktop\\Install\\{848ec4ef-b4fb-6501-ab69-678738a3a5c6}\\   \\   \\\u202e\ufbf9\u0e5b\\{848ec4ef-b4fb-6501-ab69-678738a3a5c6}\\@ &#91;-] --&amp;amp;gt; SUPPRIM\u00c9\n&#91;ZeroAccess]&#91;Repertoire] U : C:\\Program Files\\Google\\Desktop\\Install\\{848ec4ef-b4fb-6501-ab69-678738a3a5c6}\\   \\   \\\u202e\ufbf9\u0e5b\\{848ec4ef-b4fb-6501-ab69-678738a3a5c6}\\U &#91;-] --&amp;amp;gt; SUPPRIM\u00c9\n&#91;ZeroAccess]&#91;Repertoire] {848ec4ef-b4fb-6501-ab69-678738a3a5c6} : C:\\Program Files\\Google\\Desktop\\Install\\{848ec4ef-b4fb-6501-ab69-678738a3a5c6}\\   \\   \\\u202e\ufbf9\u0e5b\\{848ec4ef-b4fb-6501-ab69-678738a3a5c6} &#91;-] --&amp;amp;gt; SUPPRIM\u00c9\n&#91;ZeroAccess]&#91;Repertoire] \u202e\ufbf9\u0e5b : C:\\Program Files\\Google\\Desktop\\Install\\{848ec4ef-b4fb-6501-ab69-678738a3a5c6}\\   \\   \\\u202e\ufbf9\u0e5b &#91;-] --&amp;amp;gt; SUPPRIM\u00c9\n&#91;ZeroAccess]&#91;Repertoire]     : C:\\Program Files\\Google\\Desktop\\Install\\{848ec4ef-b4fb-6501-ab69-678738a3a5c6}\\   \\    &#91;-] --&amp;amp;gt; SUPPRIM\u00c9\n&#91;ZeroAccess]&#91;Repertoire]     : C:\\Program Files\\Google\\Desktop\\Install\\{848ec4ef-b4fb-6501-ab69-678738a3a5c6}\\    &#91;-] --&amp;amp;gt; SUPPRIM\u00c9\n&#91;ZeroAccess]&#91;Repertoire] {848ec4ef-b4fb-6501-ab69-678738a3a5c6} : C:\\Program Files\\Google\\Desktop\\Install\\{848ec4ef-b4fb-6501-ab69-678738a3a5c6} &#91;-] --&amp;amp;gt; SUPPRIM\u00c9\n<\/code><\/pre>\n\n\n\n<figure class=\"wp-block-image\"><a href=\"https:\/\/www.adlice.com\/wp-content\/uploads\/2016\/06\/ZA1.png\"><img decoding=\"async\" width=\"798\" height=\"599\" src=\"https:\/\/www.adlice.com\/wp-content\/uploads\/2016\/06\/ZA1.png\" alt=\"ZA1\" class=\"wp-image-101\" srcset=\"https:\/\/www.adlice.com\/wp-content\/uploads\/2016\/06\/ZA1.png 798w, https:\/\/www.adlice.com\/wp-content\/uploads\/2016\/06\/ZA1-300x225.png 300w\" sizes=\"(max-width: 798px) 100vw, 798px\" \/><\/a><\/figure>\n\n\n\n<figure class=\"wp-block-image\"><a href=\"https:\/\/www.adlice.com\/wp-content\/uploads\/2016\/06\/ZA2.png\"><img decoding=\"async\" width=\"799\" height=\"599\" src=\"https:\/\/www.adlice.com\/wp-content\/uploads\/2016\/06\/ZA2.png\" alt=\"ZA2\" class=\"wp-image-102\" srcset=\"https:\/\/www.adlice.com\/wp-content\/uploads\/2016\/06\/ZA2.png 799w, https:\/\/www.adlice.com\/wp-content\/uploads\/2016\/06\/ZA2-300x225.png 300w\" sizes=\"(max-width: 799px) 100vw, 799px\" \/><\/a><\/figure>\n\n\n\n<h4 class=\"has-text-align-left has-accent-color has-text-color wp-block-heading\"><br>Old variants<\/h4>\n\n\n\n<p><span style=\"color: #993366;\"><em><b>06\/26\/2012 update:<\/b> <\/em><\/span><\/p>\n\n\n\n<p><strong>ZeroAccess in its latest variant is no longer a rootkit<\/strong>.It only injects a Windows process (services.exe) with a dll stored in several locations.<br>Here&#8217;s a video demonstrating how to get rid of it:<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe title=\"RogueKiller VS ZeroAccess (Max++) CLSID variante\" width=\"1200\" height=\"675\" src=\"https:\/\/www.youtube.com\/embed\/GW-z6F0LGeM?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<p>Report should look like this:<\/p>\n\n\n\n<pre class=\"wp-block-code lang:default decode:true\"><code>\u00a4\u00a4\u00a4 Entrees de registre: 2 \u00a4\u00a4\u00a4\n&amp;lt;b&amp;gt;&#91;ZeroAccess] HKCR\\&#91;...]\\InprocServer32 :  (\\\\.\\globalroot\\systemroot\\Installer\\{848ec4ef-b4fb-6501-ab69-678738a3a5c6}\\n.) -&amp;amp;gt; REPLACED (c:\\windows\\system32\\wbem\\wbemess.dll)&amp;lt;\/b&amp;gt;\n&#91;HJ] HKLM\\&#91;...]\\NewStartPanel : {20D04FE0-3AEA-1069-A2D8-08002B30309D} (1) -&amp;amp;gt; REPLACED (0)\n\u00a4\u00a4\u00a4 Fichiers \/ Dossiers particuliers: \u00a4\u00a4\u00a4\n&amp;lt;b&amp;gt;&#91;ZeroAccess]&#91;FILE] n : c:\\windows\\installer\\{848ec4ef-b4fb-6501-ab69-678738a3a5c6}\\n --&amp;amp;gt; REMOVED\n&#91;ZeroAccess]&#91;FILE] @ : c:\\windows\\installer\\{848ec4ef-b4fb-6501-ab69-678738a3a5c6}\\@ --&amp;amp;gt; REMOVED AT REBOOT\n&#91;Del.Parent]&#91;FILE] 00000001.@ : c:\\windows\\installer\\{848ec4ef-b4fb-6501-ab69-678738a3a5c6}\\U\\00000001.@ --&amp;amp;gt; REMOVED\n&#91;Del.Parent]&#91;FILE] 80000000.@ : c:\\windows\\installer\\{848ec4ef-b4fb-6501-ab69-678738a3a5c6}\\U\\80000000.@ --&amp;amp;gt; REMOVED\n&#91;Del.Parent]&#91;FILE] 800000cb.@ : c:\\windows\\installer\\{848ec4ef-b4fb-6501-ab69-678738a3a5c6}\\U\\800000cb.@ --&amp;amp;gt; REMOVED\n&#91;ZeroAccess]&#91;FOLDER] U : c:\\windows\\installer\\{848ec4ef-b4fb-6501-ab69-678738a3a5c6}\\U --&amp;amp;gt; REMOVED\n&#91;ZeroAccess]&#91;FILE] n : c:\\documents and settings\\tigzy\\local settings\\application data\\{848ec4ef-b4fb-6501-ab69-678738a3a5c6}\\n --&amp;amp;gt; REMOVED\n&#91;ZeroAccess]&#91;FILE] @ : c:\\documents and settings\\tigzy\\local settings\\application data\\{848ec4ef-b4fb-6501-ab69-678738a3a5c6}\\@ --&amp;amp;gt; REMOVED&amp;lt;\/b&amp;gt;<\/code><\/pre>\n\n\n\n<p><br><span style=\"color: #993366;\"><em><b>Initial version:<\/b> <\/em><\/span><\/p>\n\n\n\n<p><strong>This rootkit removes AVs protections<\/strong>, et installs itself inside the tcp\/ip stack, which leads to web redirections. It kills and modify ACLs on every programms trying to scan its files. It&#8217;s composed of 3 parts:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>A dll (consrv.dll) for x64 systems<\/li>\n\n\n\n<li>A locked filesystem (C:\/Windows\/$NtUninstallKBxxxxx$) where it keeps its files,being sure they won&#8217;t be removed.<\/li>\n\n\n\n<li>A patched driver (x86), randomly chosen. This driver is legit at the origin.<\/li>\n<\/ol>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-4-3 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe title=\"Rootkit ZeroAccess (Max++)\" width=\"1200\" height=\"900\" src=\"https:\/\/www.youtube.com\/embed\/IAzvk3zf2PQ?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Donwload and launch <a href=\"http:\/\/support.kaspersky.com\/downloads\/utils\/tdsskiller.zip\">TDSSKiller<\/a>. Be careful to choose &#8220;cure&#8221; and &#8220;delete&#8221; on every object.<\/li>\n\n\n\n<li>You should obtain the following report<\/li>\n<\/ul>\n\n\n\n<pre class=\"wp-block-code lang:default decode:true\"><code>19:35:47.0004 1156    ============================================================\n19:35:47.0309 1156    Initialize success\n19:35:55.0922 1516    ============================================================\n19:35:55.0922 1516    Scan started\n19:35:55.0922 1516    Mode: Manual; SigCheck; TDLFS;\n19:35:55.0922 1516    ============================================================\n19:35:56.0019 1516    a04dba87        (8f2bb1827cac01aee6a16e30a1260199) C:\\WINDOWS\\2277133728:1605518712.exe\n19:35:56.0046 1516    Suspicious file (Hidden): C:\\WINDOWS\\2277133728:1605518712.exe. md5: 8f2bb1827cac01aee6a16e30a1260199\n19:35:56.0046 1516    a04dba87 ( HiddenFile.Multi.Generic ) - warning\n19:35:56.0046 1516    a04dba87 - detected HiddenFile.Multi.Generic (1)\n...19:36:21.0921 1516    ============================================================\n19:36:21.0921 1516    Scan finished\n19:36:21.0921 1516    ============================================================\n19:36:22.0020 1420    Detected object count: 3\n19:36:22.0020 1420    Actual detected object count: 3\n19:37:04.0646 1420    HKLM\\SYSTEM\\ControlSet001\\services\\a04dba87 - will be deleted on reboot\n19:37:04.0656 1420    C:\\WINDOWS\\2277133728:1605518712.exe - will be deleted on reboot\n19:37:04.0656 1420    a04dba87 ( HiddenFile.Multi.Generic ) - User select action: Delete\n19:37:04.0656 1420    procguard ( UnsignedFile.Multi.Generic ) - skipped by user\n19:37:04.0656 1420    procguard ( UnsignedFile.Multi.Generic ) - User select action: Skip\n19:37:04.0712 1420    Backup copy found, using it..\n19:37:04.0740 1420    C:\\WINDOWS\\system32\\DRIVERS\\tmtdi.sys - will be cured on reboot\n19:37:04.0740 1420    tmtdi ( Rootkit.Win32.ZAccess.g ) - User select action: Cure\n19:37:07.0963 1084    Deinitialize success<\/code><\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Then run <a href=\"http:\/\/download.bleepingcomputer.com\/sUBs\/ComboFix.exe\">Combofix.<\/a> It could take a long time.<\/li>\n\n\n\n<li>You should obtain the following report<\/li>\n<\/ul>\n\n\n\n<pre class=\"wp-block-code lang:default decode:true\"><code>((((((((((((((((((((((((((((((((((((   Autres suppressions   ))))))))))))))))))))))))))))))))))))))))))))))))\n.\n.\n&amp;lt;b&amp;gt;c:\\windows\\$NtUninstallKB58677$\nc:\\windows\\$NtUninstallKB58677$\\2689448583\\@\nc:\\windows\\$NtUninstallKB58677$\\2689448583\\L\\echiudpr\nc:\\windows\\$NtUninstallKB58677$\\2689448583\\U\\@00000001\nc:\\windows\\$NtUninstallKB58677$\\2689448583\\U\\@000000c0\nc:\\windows\\$NtUninstallKB58677$\\2689448583\\U\\@000000cb\nc:\\windows\\$NtUninstallKB58677$\\2689448583\\U\\@000000cf\nc:\\windows\\$NtUninstallKB58677$\\2689448583\\U\\@80000000\nc:\\windows\\$NtUninstallKB58677$\\2689448583\\U\\@800000c0\nc:\\windows\\$NtUninstallKB58677$\\2689448583\\U\\@800000cb\nc:\\windows\\$NtUninstallKB58677$\\2689448583\\U\\@800000cf\nc:\\windows\\$NtUninstallKB58677$\\339281305&amp;lt;\/b&amp;gt;\nc:\\windows\\{2521BB91-29B1-4d7e-9137-AC9875D77735}<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>Got infected with ZeroAccess (Sirefef) rootkit? Follow this step by step guide to get rid of it. Our guide also includes a short analysis of the rootkit.<\/p>\n","protected":false},"author":1,"featured_media":102,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[36,103],"tags":[107,48,106,43,105,104],"class_list":["post-97","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-analysis","category-guide","tag-guide","tag-removal","tag-roguekiller","tag-rootkit","tag-sirefef","tag-zeroaccess","category-36","category-103","description-off"],"views":10293,"yoast_score":69,"yoast_readable":60,"featured_image_src":"https:\/\/www.adlice.com\/wp-content\/uploads\/2016\/06\/ZA2.png","author_info":{"display_name":"tigzy","author_link":"https:\/\/www.adlice.com\/de\/author\/tigzy\/"},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.1.1 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>How to Remove ZeroAccess Rootkit | Guide \u2022 Adlice Software<\/title>\n<meta name=\"description\" content=\"Got infected with ZeroAccess (Sirefef) rootkit? 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