{"id":7762,"date":"2014-07-26T23:58:48","date_gmt":"2014-07-27T02:58:48","guid":{"rendered":"http:\/\/www.ethicalhacker.com.br\/site\/?p=7762"},"modified":"2019-06-18T17:52:21","modified_gmt":"2019-06-18T20:52:21","slug":"depurando-arquivo-compilado-com-objdump","status":"publish","type":"post","link":"https:\/\/www.ethicalhacker.com.br\/site\/2014\/07\/basico\/depurando-arquivo-compilado-com-objdump\/","title":{"rendered":"Depurando arquivo compilado com Objdump."},"content":{"rendered":"<style type=\"text\/css\"><!-- p { margin-bottom: 0.25cm; line-height: 120%; } --><\/style>\n<p style=\"margin-bottom: 0cm; line-height: 100%;\">Ol\u00e1 Pessoal !!! Bem vindo ao site Ethical Hacker !!!<\/p>\n<p style=\"margin-bottom: 0cm; line-height: 100%;\">Neste pequeno artigo vamos descrever um pouco sobre a ferramenta Objdump. Com Objdump \u00e9 poss\u00edvel obtermos informa\u00e7\u00f5es completas de arquivos compilados executando uma depura\u00e7\u00e3o detalhada.<\/p>\n<p style=\"margin-bottom: 0cm; line-height: 100%;\">Neste caso vamos utilizar um simples programa em C e compil\u00e1-lo com GCC e depois depurar o mesmo com Objdump verificando os detalhes do arquivo.<\/p>\n<p>#include &lt;stdio.h&gt;<\/p>\n<p>int main(int argc, char* argv[]) {<br \/>\nprintf (&#8220;Ethical Hacker &#8211; Objdump!\\n&#8221;);<br \/>\nreturn 0;<br \/>\n}<\/p>\n<p style=\"text-align: center;\"><a href=\"http:\/\/www.ethicalhacker.com.br\/site\/wp-content\/uploads\/fig1.png\" class=\"gallery_colorbox\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-7781 aligncenter\" src=\"http:\/\/www.ethicalhacker.com.br\/site\/wp-content\/uploads\/fig1-300x168.png\"  alt=\"fig1\" width=\"300\" height=\"168\" srcset=\"https:\/\/www.ethicalhacker.com.br\/site\/wp-content\/uploads\/fig1-300x168.png 300w, https:\/\/www.ethicalhacker.com.br\/site\/wp-content\/uploads\/fig1-1024x576.png 1024w, https:\/\/www.ethicalhacker.com.br\/site\/wp-content\/uploads\/fig1.png 1920w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n<p style=\"text-align: center;\">Fig1<\/p>\n<style type=\"text\/css\"><!-- p { margin-bottom: 0.25cm; line-height: 120%; } --><\/style>\n<p style=\"margin-bottom: 0cm; line-height: 100%; text-align: left;\">Executando o arquivo:\u00a0 .\/testeobjdump<\/p>\n<p style=\"margin-bottom: 0cm; line-height: 100%; text-align: center;\"><a href=\"http:\/\/www.ethicalhacker.com.br\/site\/wp-content\/uploads\/fig2.png\" class=\"gallery_colorbox\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-7782\" src=\"http:\/\/www.ethicalhacker.com.br\/site\/wp-content\/uploads\/fig2-300x168.png\"  alt=\"fig2\" width=\"300\" height=\"168\" srcset=\"https:\/\/www.ethicalhacker.com.br\/site\/wp-content\/uploads\/fig2-300x168.png 300w, https:\/\/www.ethicalhacker.com.br\/site\/wp-content\/uploads\/fig2-1024x576.png 1024w, https:\/\/www.ethicalhacker.com.br\/site\/wp-content\/uploads\/fig2.png 1920w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n<p style=\"margin-bottom: 0cm; line-height: 100%; text-align: center;\">Fig2<\/p>\n<p style=\"margin-bottom: 0cm; line-height: 100%; text-align: left;\">Verifcando a arquitetura do arquivo compilado.<\/p>\n<p style=\"margin-bottom: 0cm; line-height: 100%; text-align: center;\"><a href=\"http:\/\/www.ethicalhacker.com.br\/site\/wp-content\/uploads\/fig3.png\" class=\"gallery_colorbox\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-7784 aligncenter\" src=\"http:\/\/www.ethicalhacker.com.br\/site\/wp-content\/uploads\/fig3-300x168.png\"  alt=\"fig3\" width=\"300\" height=\"168\" srcset=\"https:\/\/www.ethicalhacker.com.br\/site\/wp-content\/uploads\/fig3-300x168.png 300w, https:\/\/www.ethicalhacker.com.br\/site\/wp-content\/uploads\/fig3-1024x576.png 1024w, https:\/\/www.ethicalhacker.com.br\/site\/wp-content\/uploads\/fig3.png 1920w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n<p style=\"margin-bottom: 0cm; line-height: 100%; text-align: center;\">Fig3<\/p>\n<p style=\"margin-bottom: 0cm; line-height: 100%; text-align: left;\"><span id=\"result_box\" lang=\"pt\"><span class=\"hps\">Verificando o <\/span><span class=\"hps\">conte\u00fado de cabe\u00e7alho<\/span> <span class=\"hps\">do arquivo compilado utilizando a op\u00e7\u00e3o <\/span>-p<\/span><\/p>\n<p><a href=\"http:\/\/www.ethicalhacker.com.br\/site\/wp-content\/uploads\/fig4.png\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-7787 aligncenter\" src=\"http:\/\/www.ethicalhacker.com.br\/site\/wp-content\/uploads\/fig4-300x168.png\" alt=\"fig4\" width=\"300\" height=\"168\" srcset=\"https:\/\/www.ethicalhacker.com.br\/site\/wp-content\/uploads\/fig4-300x168.png 300w, https:\/\/www.ethicalhacker.com.br\/site\/wp-content\/uploads\/fig4-1024x576.png 1024w, https:\/\/www.ethicalhacker.com.br\/site\/wp-content\/uploads\/fig4.png 1920w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><span id=\"result_box\" lang=\"pt\"><br \/>\n<\/span><\/a><\/p>\n<p style=\"margin-bottom: 0cm; line-height: 100%; text-align: center;\">Fig4<\/p>\n<p style=\"margin-bottom: 0cm; line-height: 100%; text-align: justify;\"><span id=\"result_box\" lang=\"pt\"><span class=\"hps\">Verificando as\u00a0 v\u00e1rias<\/span> <span class=\"hps\">se\u00e7\u00f5es do <\/span><span class=\"hps\">arquivo objeto compilado<\/span>, atrav\u00e9s da <span class=\"hps\">op\u00e7\u00e3o -h<\/span>. VMA representa o endere\u00e7o de mem\u00f3ria virtual, LMA representa o endere\u00e7o de mem\u00f3ria l\u00f3gica, ALGN representa o alinhamento, <span id=\"result_box\" lang=\"pt\"><span class=\"hps\">CONTE\u00daDO<\/span>, <span class=\"hps\">ALLOC<\/span>, LOAD <span class=\"hps\">,<\/span> <span class=\"hps\">READONLY <\/span>e DATA s\u00e3o as flags que representam uma determinada se\u00e7\u00e3o.<\/span><br \/>\n<\/span><\/p>\n<p style=\"margin-bottom: 0cm; line-height: 100%; text-align: left;\"><a href=\"http:\/\/www.ethicalhacker.com.br\/site\/wp-content\/uploads\/fig5.png\" class=\"gallery_colorbox\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-7789 aligncenter\" src=\"http:\/\/www.ethicalhacker.com.br\/site\/wp-content\/uploads\/fig5-300x168.png\"  alt=\"fig5\" width=\"300\" height=\"168\" srcset=\"https:\/\/www.ethicalhacker.com.br\/site\/wp-content\/uploads\/fig5-300x168.png 300w, https:\/\/www.ethicalhacker.com.br\/site\/wp-content\/uploads\/fig5-1024x576.png 1024w, https:\/\/www.ethicalhacker.com.br\/site\/wp-content\/uploads\/fig5.png 1920w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n<p style=\"margin-bottom: 0cm; line-height: 100%; text-align: center;\"><span id=\"result_box\" lang=\"pt\">Fig5<\/span><\/p>\n<p><span class=\"hps\">Com a op\u00e7\u00e3o -x\u00a0 verificamos todo o <span id=\"result_box\" lang=\"pt\"><span class=\"hps\">conte\u00fado<\/span> d<span class=\"hps\">os<\/span> <span class=\"hps\">cabe\u00e7alhos.<\/span><\/span><br \/>\n<\/span><\/p>\n<p><a href=\"http:\/\/www.ethicalhacker.com.br\/site\/wp-content\/uploads\/fig6.png\" class=\"gallery_colorbox\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-7792 aligncenter\" src=\"http:\/\/www.ethicalhacker.com.br\/site\/wp-content\/uploads\/fig6-300x168.png\"  alt=\"fig6\" width=\"300\" height=\"168\" srcset=\"https:\/\/www.ethicalhacker.com.br\/site\/wp-content\/uploads\/fig6-300x168.png 300w, https:\/\/www.ethicalhacker.com.br\/site\/wp-content\/uploads\/fig6-1024x576.png 1024w, https:\/\/www.ethicalhacker.com.br\/site\/wp-content\/uploads\/fig6.png 1920w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n<p style=\"text-align: center;\">Fig6<\/p>\n<p style=\"text-align: left;\">Verificando as se\u00e7\u00f5es execut\u00e1veis atrav\u00e9s da op\u00e7\u00e3o -d.<\/p>\n<p style=\"text-align: left;\"><a href=\"http:\/\/www.ethicalhacker.com.br\/site\/wp-content\/uploads\/fig7.png\" class=\"gallery_colorbox\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-7794 aligncenter\" src=\"http:\/\/www.ethicalhacker.com.br\/site\/wp-content\/uploads\/fig7-300x168.png\"  alt=\"fig7\" width=\"300\" height=\"168\" srcset=\"https:\/\/www.ethicalhacker.com.br\/site\/wp-content\/uploads\/fig7-300x168.png 300w, https:\/\/www.ethicalhacker.com.br\/site\/wp-content\/uploads\/fig7-1024x576.png 1024w, https:\/\/www.ethicalhacker.com.br\/site\/wp-content\/uploads\/fig7.png 1920w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n<p style=\"text-align: center;\">Fig7<\/p>\n<p style=\"text-align: left;\">Verificando o conte\u00fado completo de todas as se\u00e7\u00f5es com op\u00e7\u00e3o -s.<\/p>\n<p style=\"text-align: center;\"><a href=\"http:\/\/www.ethicalhacker.com.br\/site\/wp-content\/uploads\/fig8.png\" class=\"gallery_colorbox\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-7796\" src=\"http:\/\/www.ethicalhacker.com.br\/site\/wp-content\/uploads\/fig8-300x168.png\"  alt=\"fig8\" width=\"300\" height=\"168\" srcset=\"https:\/\/www.ethicalhacker.com.br\/site\/wp-content\/uploads\/fig8-300x168.png 300w, https:\/\/www.ethicalhacker.com.br\/site\/wp-content\/uploads\/fig8-1024x576.png 1024w, https:\/\/www.ethicalhacker.com.br\/site\/wp-content\/uploads\/fig8.png 1920w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n<p style=\"text-align: center;\">Fig8<\/p>\n<p style=\"text-align: left;\">Exibindo o conte\u00fado da tabela de s\u00edmbolos com a op\u00e7\u00e3o -T.<\/p>\n<p style=\"text-align: left;\"><a href=\"http:\/\/www.ethicalhacker.com.br\/site\/wp-content\/uploads\/fig9.png\" class=\"gallery_colorbox\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-7798 aligncenter\" src=\"http:\/\/www.ethicalhacker.com.br\/site\/wp-content\/uploads\/fig9-300x168.png\"  alt=\"fig9\" width=\"300\" height=\"168\" srcset=\"https:\/\/www.ethicalhacker.com.br\/site\/wp-content\/uploads\/fig9-300x168.png 300w, https:\/\/www.ethicalhacker.com.br\/site\/wp-content\/uploads\/fig9-1024x576.png 1024w, https:\/\/www.ethicalhacker.com.br\/site\/wp-content\/uploads\/fig9.png 1920w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n<p style=\"text-align: center;\">Fig9<\/p>\n<p style=\"text-align: left;\"><span id=\"result_box\" lang=\"pt\"><br \/>\nFinalizando utilizamos a op\u00e7\u00e3o -j, afim de obter a informa\u00e7\u00e3o desejada em uma determinada se\u00e7\u00e3o.\u00a0 <\/span><\/p>\n<p style=\"text-align: left;\"><a href=\"http:\/\/www.ethicalhacker.com.br\/site\/wp-content\/uploads\/fig10.png\" class=\"gallery_colorbox\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-7800 aligncenter\" src=\"http:\/\/www.ethicalhacker.com.br\/site\/wp-content\/uploads\/fig10-300x168.png\"  alt=\"fig10\" width=\"300\" height=\"168\" srcset=\"https:\/\/www.ethicalhacker.com.br\/site\/wp-content\/uploads\/fig10-300x168.png 300w, https:\/\/www.ethicalhacker.com.br\/site\/wp-content\/uploads\/fig10-1024x576.png 1024w, https:\/\/www.ethicalhacker.com.br\/site\/wp-content\/uploads\/fig10.png 1920w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n<p style=\"text-align: center;\"><span id=\"result_box\" lang=\"pt\">Fig10<\/span><\/p>\n<p style=\"text-align: justify;\">Um grande abra\u00e7o a todos\u00a0 !!!<\/p>\n<p style=\"text-align: justify;\">\r\n\t\t<div class='author-shortcodes'>\r\n\t\t\t<div class='author-inner'>\r\n\t\t\t\t<div class='author-image'>\r\n\t\t\t<img src='https:\/\/www.ethicalhacker.com.br\/site\/wp-content\/uploads\/2012-05-30-12.45.38-1143174_57x57.jpg' alt='' \/>\r\n\t\t\t<div class='author-overlay'><\/div>\r\n\t\t<\/div> <!-- .author-image --> \r\n\t\t<div class='author-info'>\r\n\t\t\t<p style=\"text-align: justify;\">By:\u00a0Gerson Raymond<\/p>\n<p style=\"text-align: justify;\">T\u00e9cnico em Contabilidade, T\u00e9cnico em Eletr\u00f4nica, T\u00e9cnico em Telecomunica\u00e7\u00f5es, Bacharel em Ci\u00eancia da Computa\u00e7\u00e3o, Administrador de Redes Linux (CentOS, XEN, Zabbix, Asterisk\/Elastix) e P\u00f3s-Graduado em\u00a0Seguran\u00e7a em Tecnologia da Informa\u00e7\u00e3o \u2013 UNIVERSIDADE MACKENZIE \u2013 SP.<\/p>\n<p style=\"text-align: justify;\">Homepage:\u00a0<a title=\"Grsecurity\" href=\"http:\/\/www.grsecurity.com.br\" target=\"_blank\" rel=\"noopener noreferrer\">http:\/\/www.grsecurity.com.br<\/a><\/p>\n<p style=\"text-align: justify;\">\r\n\t\t<\/div> <!-- .author-info --><\/p>\n<p style=\"text-align: justify;\">\r\n\t\t\t<\/div> <!-- .author-inner -->\r\n\t\t<\/div> <!-- .author-shortcodes --><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Ol\u00e1 Pessoal !!! Bem vindo ao site Ethical Hacker !!! Neste pequeno artigo vamos descrever um pouco sobre a ferramenta Objdump. Com Objdump \u00e9 poss\u00edvel obtermos informa\u00e7\u00f5es completas de arquivos compilados executando uma depura\u00e7\u00e3o detalhada. Neste caso vamos utilizar um simples programa em C e compil\u00e1-lo com GCC e depois depurar o mesmo com Objdump [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":7765,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[89,100,101],"tags":[],"class_list":["post-7762","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-basico","category-diversos","category-tutorial-backtrack"],"_links":{"self":[{"href":"https:\/\/www.ethicalhacker.com.br\/site\/wp-json\/wp\/v2\/posts\/7762","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ethicalhacker.com.br\/site\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ethicalhacker.com.br\/site\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ethicalhacker.com.br\/site\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ethicalhacker.com.br\/site\/wp-json\/wp\/v2\/comments?post=7762"}],"version-history":[{"count":34,"href":"https:\/\/www.ethicalhacker.com.br\/site\/wp-json\/wp\/v2\/posts\/7762\/revisions"}],"predecessor-version":[{"id":10374,"href":"https:\/\/www.ethicalhacker.com.br\/site\/wp-json\/wp\/v2\/posts\/7762\/revisions\/10374"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.ethicalhacker.com.br\/site\/wp-json\/wp\/v2\/media\/7765"}],"wp:attachment":[{"href":"https:\/\/www.ethicalhacker.com.br\/site\/wp-json\/wp\/v2\/media?parent=7762"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ethicalhacker.com.br\/site\/wp-json\/wp\/v2\/categories?post=7762"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ethicalhacker.com.br\/site\/wp-json\/wp\/v2\/tags?post=7762"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}