{"id":666,"date":"2023-10-10T21:03:37","date_gmt":"2023-10-10T13:03:37","guid":{"rendered":"https:\/\/shangwendada.top\/?p=666"},"modified":"2023-10-10T21:13:59","modified_gmt":"2023-10-10T13:13:59","slug":"reversemips%e6%8c%87%e4%bb%a4%e9%9b%86%e6%96%87%e4%bb%b6%e8%bf%9c%e7%a8%8b%e8%b0%83%e8%af%95%e7%8e%af%e5%a2%83%e6%90%ad%e5%bb%ba","status":"publish","type":"post","link":"https:\/\/blog.shangwendada.top\/index.php\/2023\/10\/10\/reversemips%e6%8c%87%e4%bb%a4%e9%9b%86%e6%96%87%e4%bb%b6%e8%bf%9c%e7%a8%8b%e8%b0%83%e8%af%95%e7%8e%af%e5%a2%83%e6%90%ad%e5%bb%ba\/","title":{"rendered":"[Reverse]Mips\u6307\u4ee4\u96c6\u6587\u4ef6\u8fdc\u7a0b\u8c03\u8bd5\u73af\u5883\u642d\u5efa"},"content":{"rendered":"<h2>\u5b89\u88c5QEMU\u548cGDB<\/h2>\n<p>QEMU\u662f\u7528\u4e8e\u5404\u79cd\u4f53\u7cfb\u7ed3\u6784\u7684\u4eff\u771f\u5668\u3002\u901a\u5e38\uff0c\u5b83\u7528\u4e8e\u6a21\u62df\u6574\u4e2aPC\uff08\u5373\u8fd0\u884c\u865a\u62df\u673a\uff09\u3002\u5bf9\u4e8e\u8c03\u8bd5\u5355\u4e2a\u7a0b\u5e8f\uff0c\u8fd9\u4e0d\u662f\u5fc5\u9700\u7684\u3002\u5728Linux\u4e0a\uff0c\u53ef\u4ee5\u4f7f\u7528QEMU\u7528\u6237\u7a7a\u95f4\u4eff\u771f\u3002<\/p>\n<h3>\u5b89\u88c5qemu<\/h3>\n<pre><code class=\"language-bash\">sudo apt-get install qemu qemu-user qemu-user-static<\/code><\/pre>\n<p>\u6b64\u5916\uff0c\u9ed8\u8ba4\u60c5\u51b5\u4e0b\u4e3aUbuntu\u548c\u7c7b\u4f3c\u64cd\u4f5c\u7cfb\u7edf\u5b89\u88c5\u7684GDB\u5bf9\u5176\u4ed6\u4f53\u7cfb\u7ed3\u6784\u4e00\u65e0\u6240\u77e5\u3002\u53ef\u4ee5\u5229\u7528gdb-multiarch\u5305<\/p>\n<pre><code class=\"language-bash\">sudo apt-get install gdb-multiarch<\/code><\/pre>\n<p>binfmt\u53ef\u4ee5\u4f7f\u7528\u8be5\u5305\u67e5\u770b\u6587\u4ef6\u7684\u7c7b\u578b\uff0c\u5e76\u81ea\u52a8\u8c03\u7528\u6b63\u786e\u7684\u89e3\u91ca\u5668\u3002\u5728\u6211\u4eec\u7684\u4f8b\u5b50\u4e2d\uff0c\u5b83\u5c06\u770b\u5230\u60a8\u6b63\u5728\u5c1d\u8bd5\u8fd0\u884c\u4e00\u4e2a\u4f4e\u7aef\u7684MIPS\uff08mipsel\uff09\u4e8c\u8fdb\u5236\u6587\u4ef6\u5e76\u8c03\u7528qemu-mipsel\u3002<\/p>\n<pre><code class=\"language-bash\">sudo apt-get install &#039;binfmt*&#039;<\/code><\/pre>\n<h2>\u5b89\u88c5libraries<\/h2>\n<p>\u5305\u542bmipsel\u8fd0\u884c\u6240\u9009\u4e8c\u8fdb\u5236\u6587\u4ef6\u6240\u9700\u7684\u6240\u6709\u5e93\u7684\u8f6f\u4ef6\u5305\uff1a<\/p>\n<pre><code class=\"language-bash\">sudo apt-get install libc6-mipsel-cross      # For MIPS-EL\n<\/code><\/pre>\n<p>\u6784\u5efa\u7a0b\u5e8f\uff0c\u5219\u9700\u8981\u4ea4\u53c9\u7f16\u8bd1\u5668\u3002<\/p>\n<pre><code class=\"language-bash\">sudo apt-get install gcc-mipsel-linux-gnu<\/code><\/pre>\n<p>\u6700\u540e\uff0c\u6211\u4eec\u9700\u8981binfmt\u786e\u5b9amipsel\u4e8c\u8fdb\u5236\u6587\u4ef6\u5728\u54ea\u91cc\u3002<\/p>\n<pre><code class=\"language-bash\">sudo mkdir \/etc\/qemu-binfmt\nsudo ln -s \/usr\/mipsel-linux-gnu \/etc\/qemu-binfmt\/mipsel # MIPSEL\n<\/code><\/pre>\n<p>\u73b0\u5728\u53ef\u4ee5\u5728\u7cfb\u7edf\u4e0a\u8fd0\u884c\u4e8c\u8fdb\u5236\u6587\u4ef6<\/p>\n<h2>\u4f8b\u9898[easy_reverse_mips]<\/h2>\n<p><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/shangwendada.top\/wp-content\/uploads\/2023\/10\/image-1696943384416.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/shangwendada.top\/wp-content\/uploads\/2023\/10\/image-1696943384416.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"file\" \/><\/div><br \/>\n<div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/shangwendada.top\/wp-content\/uploads\/2023\/10\/image-1696943410963.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/shangwendada.top\/wp-content\/uploads\/2023\/10\/image-1696943410963.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"file\" \/><\/div><br \/>\n\u6210\u529f\u5f00\u542f\u8c03\u8bd5<br \/>\n<div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/shangwendada.top\/wp-content\/uploads\/2023\/10\/image-1696943422493.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/shangwendada.top\/wp-content\/uploads\/2023\/10\/image-1696943422493.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"file\" \/><\/div><\/p>\n<p><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/shangwendada.top\/wp-content\/uploads\/2023\/10\/image-1696943432373.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/shangwendada.top\/wp-content\/uploads\/2023\/10\/image-1696943432373.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"file\" \/><\/div><br \/>\n\u8c03\u8bd5\u8fc7\u7a0b\u4e2d\u53d1\u73b0\u5728\u4f2a\u4ee3\u7801\u754c\u9762\u76f4\u63a5F8\u4f1a\u5bfc\u81f4\u7a0b\u5e8f\u76f4\u63a5\u9000\u51fa\u3002<br \/>\n\u56e0\u6b64\u6211\u4eec\u9700\u8981\u5728\u6c47\u7f16\u4ee3\u7801\u8fdb\u884c\u8c03\u8bd5<br \/>\n<div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/shangwendada.top\/wp-content\/uploads\/2023\/10\/image-1696943536694.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/shangwendada.top\/wp-content\/uploads\/2023\/10\/image-1696943536694.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"file\" \/><\/div><br \/>\n\u8c03\u8bd5\u5230\u6b64\u5904\u51fa\u73b0running<br \/>\n<div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/shangwendada.top\/wp-content\/uploads\/2023\/10\/image-1696943546549.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/shangwendada.top\/wp-content\/uploads\/2023\/10\/image-1696943546549.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"file\" \/><\/div><br \/>\n\u6839\u636e\u4f2a\u4ee3\u7801\u4e4b\u524d\u5206\u6790\u51fa\u8f93\u5165\u5e94\u8be5\u662f16\u4f4d\u6570\u5b57\u3002<br \/>\n<div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/shangwendada.top\/wp-content\/uploads\/2023\/10\/image-1696943555414.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/shangwendada.top\/wp-content\/uploads\/2023\/10\/image-1696943555414.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"file\" \/><\/div><br \/>\n<div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/shangwendada.top\/wp-content\/uploads\/2023\/10\/image-1696943559769.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/shangwendada.top\/wp-content\/uploads\/2023\/10\/image-1696943559769.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"file\" \/><\/div><br \/>\n<div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/shangwendada.top\/wp-content\/uploads\/2023\/10\/image-1696943564994.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/shangwendada.top\/wp-content\/uploads\/2023\/10\/image-1696943564994.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"file\" \/><\/div><\/p>\n<p>RC4\u52a0\u5bc6\u3002\u6211\u4eec\u52a8\u6001\u8c03\u8bd5\u53d6\u51fa\u88ab\u52a0\u5bc6\u540e\u76841234567891123456\u4e0e\u672c\u8eab\u5f02\u6216\u5f97\u51fa\u5f02\u6216\u56e0\u5b50\uff0c\u7136\u540e\u518d\u4e0e\u7b2c\u4e00\u4e2acmp\u6bd4\u8f83\u7684\u5bc6\u6587\u8fdb\u884c\u5f02\u6216\uff0c\u518d\u548c\u6bd4\u8f83\u7684\u5bc6\u6587\u5f02\u6216\u5f97\u51fakey: GzBtuJi5Z0glYwNv<\/p>\n<p>\u7136\u540e\u7ee7\u7eed\u770b\uff0c\u7a0b\u5e8f\u53c8\u8981\u8f93\u5165\u4e00\u6b2116\u4f4d\u7684\u6570\uff0c\u7136\u540e\u548ckey\u6291\u6216\u540e\u6bd4\u8f83\uff0c\u90a3\u4e48\u6211\u4eec\u62ffkey\u5f02\u6216\u5bc6\u6587\u5f97\u5230flag<\/p>\n<pre><code class=\"language-cpp\">#include &lt;iostream&gt;\n#include &lt;vector&gt;\n#include &lt;cmath&gt;\nusing namespace std;\nunsigned char ida_chars[] = {\n    0xC1, 0xCA, 0x63, 0x74, 0x24, 0x92, 0xCF, 0xB9, 0x6F, 0xD4,\n    0xE1, 0x73, 0xA6, 0xF1, 0xCD, 0xCE\n};\nunsigned char ida_chars2[] = {\n    0xB7, 0x82, 0x12, 0x34, 0x64, 0xEE, 0x91, 0xB4, 0x0C, 0xD5,\n    0xB7, 0x2D, 0xCC, 0xB2, 0xB6, 0x8E\n};\nunsigned char ida_chars3[] = {\n    0x21, 0x16, 0x23, 0x13, 0x0E, 0x00, 0x1C, 0x46, 0x2E, 0x75,\n    0x09, 0x0F, 0x10, 0x03, 0x6F, 0x0B\n};\nunsigned char key[] = &quot;1234567891123456&quot;;\nint main() {\n    for (int i = 0 ; i &lt; 16 ; i ++ ) {\n        printf(&quot;%c&quot;, key[i]^ida_chars[i]^ida_chars2[i]);\n    }\n    cout&lt;&lt;endl;\n    for (int i = 0 ; i &lt; 16 ; i ++ ) {\n        printf(&quot;%c&quot;, key[i]^ida_chars[i]^ida_chars2[i]^ida_chars3[i]);\n    }\n}\n<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>\u5b89\u88c5QEMU\u548cGDB QEMU\u662f\u7528\u4e8e\u5404\u79cd\u4f53\u7cfb\u7ed3\u6784\u7684\u4eff\u771f\u5668\u3002\u901a\u5e38\uff0c\u5b83\u7528\u4e8e\u6a21\u62df\u6574\u4e2aPC\uff08\u5373\u8fd0\u884c\u865a\u62df\u673a\uff09\u3002\u5bf9\u4e8e\u8c03\u8bd5\u5355 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":664,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-666","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/blog.shangwendada.top\/index.php\/wp-json\/wp\/v2\/posts\/666","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.shangwendada.top\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.shangwendada.top\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.shangwendada.top\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.shangwendada.top\/index.php\/wp-json\/wp\/v2\/comments?post=666"}],"version-history":[{"count":7,"href":"https:\/\/blog.shangwendada.top\/index.php\/wp-json\/wp\/v2\/posts\/666\/revisions"}],"predecessor-version":[{"id":682,"href":"https:\/\/blog.shangwendada.top\/index.php\/wp-json\/wp\/v2\/posts\/666\/revisions\/682"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/blog.shangwendada.top\/index.php\/wp-json\/wp\/v2\/media\/664"}],"wp:attachment":[{"href":"https:\/\/blog.shangwendada.top\/index.php\/wp-json\/wp\/v2\/media?parent=666"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.shangwendada.top\/index.php\/wp-json\/wp\/v2\/categories?post=666"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.shangwendada.top\/index.php\/wp-json\/wp\/v2\/tags?post=666"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}