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<div id="projectname">Theodosius<span id="projectnumber">&#160;v3.0</span>
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<div id="projectbrief">Jit linker, symbol mapper, and obfuscator</div>
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<div class="textblock"><code>#include &lt;Windows.h&gt;</code><br />
<code>#include &lt;psapi.h&gt;</code><br />
<code>#include &lt;filesystem&gt;</code><br />
<code>#include &lt;fstream&gt;</code><br />
<code>#include &lt;iostream&gt;</code><br />
<code>#include &lt;spdlog/spdlog.h&gt;</code><br />
<code>#include &lt;<a class="el" href="../../d2/d24/theo_8hpp_source.html">theo.hpp</a>&gt;</code><br />
<code>#include &lt;<a class="el" href="../../de/d46/engine_8hpp_source.html">obf/engine.hpp</a>&gt;</code><br />
<code>#include &lt;<a class="el" href="../../d2/df9/jcc__rewrite__pass_8hpp_source.html">obf/passes/jcc_rewrite_pass.hpp</a>&gt;</code><br />
<code>#include &lt;<a class="el" href="../../d5/d54/next__inst__pass_8hpp_source.html">obf/passes/next_inst_pass.hpp</a>&gt;</code><br />
<code>#include &lt;<a class="el" href="../../de/d64/reloc__transform__pass_8hpp_source.html">obf/passes/reloc_transform_pass.hpp</a>&gt;</code><br />
<code>#include &quot;<a class="el" href="../../db/dae/hello__world__pass_8hpp_source.html">hello_world_pass.hpp</a>&quot;</code><br />
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<p><a href="../../df/d0a/main_8cpp_source.html">Go to the source code of this file.</a></p>
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Functions</h2></td></tr>
<tr class="memitem:a0ddf1224851353fc92bfbff6f499fa97"><td class="memItemLeft" align="right" valign="top">int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../df/d0a/main_8cpp.html#a0ddf1224851353fc92bfbff6f499fa97">main</a> (int argc, char *argv[])</td></tr>
<tr class="memdesc:a0ddf1224851353fc92bfbff6f499fa97"><td class="mdescLeft">&#160;</td><td class="mdescRight">example usage of how to interface with theo. please refer to the source code of this function for details. <a href="../../df/d0a/main_8cpp.html#a0ddf1224851353fc92bfbff6f499fa97">More...</a><br /></td></tr>
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<h2 class="groupheader">Function Documentation</h2>
<a id="a0ddf1224851353fc92bfbff6f499fa97" name="a0ddf1224851353fc92bfbff6f499fa97"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a0ddf1224851353fc92bfbff6f499fa97">&#9670;&nbsp;</a></span>main()</h2>
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<td class="memname">int main </td>
<td>(</td>
<td class="paramtype">int&#160;</td>
<td class="paramname"><em>argc</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">char *&#160;</td>
<td class="paramname"><em>argv</em>[]&#160;</td>
</tr>
<tr>
<td></td>
<td>)</td>
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<p>example usage of how to interface with theo. please refer to the source code of this function for details. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">argc</td><td></td></tr>
<tr><td class="paramname">argv</td><td></td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd></dd></dl>
<p class="definition">Definition at line <a class="el" href="../../df/d0a/main_8cpp_source.html#l00057">57</a> of file <a class="el" href="../../df/d0a/main_8cpp_source.html">main.cpp</a>.</p>
<div class="fragment"><div class="line"><span class="lineno"> 57</span> {</div>
<div class="line"><span class="lineno"> 58</span> <span class="keywordflow">if</span> (argc &lt; 2)</div>
<div class="line"><span class="lineno"> 59</span> <span class="keywordflow">return</span> -1;</div>
<div class="line"><span class="lineno"> 60</span> </div>
<div class="line"><span class="lineno"> 61</span> <span class="comment">// read in lib file...</span></div>
<div class="line"><span class="lineno"> 62</span> std::ifstream f(argv[1], std::ios::binary);</div>
<div class="line"><span class="lineno"> 63</span> <span class="keyword">auto</span> fsize = fs::file_size(fs::path(argv[1]));</div>
<div class="line"><span class="lineno"> 64</span> std::vector&lt;std::uint8_t&gt; fdata;</div>
<div class="line"><span class="lineno"> 65</span> fdata.resize(fsize);</div>
<div class="line"><span class="lineno"> 66</span> f.read((<span class="keywordtype">char</span>*)fdata.data(), fsize);</div>
<div class="line"><span class="lineno"> 67</span> </div>
<div class="line"><span class="lineno"> 68</span> LoadLibraryA(<span class="stringliteral">&quot;user32.dll&quot;</span>);</div>
<div class="line"><span class="lineno"> 69</span> LoadLibraryA(<span class="stringliteral">&quot;win32u.dll&quot;</span>);</div>
<div class="line"><span class="lineno"> 70</span> </div>
<div class="line"><span class="lineno"> 71</span> <span class="comment">// declare your allocator, resolver, and copier lambda functions.</span></div>
<div class="line"><span class="lineno"> 72</span> <span class="comment">//</span></div>
<div class="line"><span class="lineno"> 73</span> </div>
<div class="line"><span class="lineno"> 74</span> <a class="code hl_typedef" href="../../da/dbd/namespacetheo_1_1recomp.html#a96995cb0c5291dce945760c3d8f55241" title="a function which is called to allocate space for a symbol.">theo::recomp::allocator_t</a> allocator =</div>
<div class="line"><span class="lineno"> 75</span> [&amp;](std::uint32_t size,</div>
<div class="line"><span class="lineno"> 76</span> coff::section_characteristics_t section_type) -&gt; std::uintptr_t {</div>
<div class="line"><span class="lineno"> 77</span> <span class="keywordflow">return</span> <span class="keyword">reinterpret_cast&lt;</span>std::uintptr_t<span class="keyword">&gt;</span>(VirtualAlloc(</div>
<div class="line"><span class="lineno"> 78</span> NULL, size, MEM_COMMIT | MEM_RESERVE,</div>
<div class="line"><span class="lineno"> 79</span> section_type.mem_execute ? PAGE_EXECUTE_READWRITE : PAGE_READWRITE));</div>
<div class="line"><span class="lineno"> 80</span> };</div>
<div class="line"><span class="lineno"> 81</span> </div>
<div class="line"><span class="lineno"> 82</span> <a class="code hl_typedef" href="../../da/dbd/namespacetheo_1_1recomp.html#a604e81450773453df676c3b573651adc" title="a function which is called by recomp_t to copy symbols into memory.">theo::recomp::copier_t</a> copier = [&amp;](std::uintptr_t ptr, <span class="keywordtype">void</span>* buff,</div>
<div class="line"><span class="lineno"> 83</span> std::uint32_t size) {</div>
<div class="line"><span class="lineno"> 84</span> std::memcpy((<span class="keywordtype">void</span>*)ptr, buff, size);</div>
<div class="line"><span class="lineno"> 85</span> };</div>
<div class="line"><span class="lineno"> 86</span> </div>
<div class="line"><span class="lineno"> 87</span> <a class="code hl_typedef" href="../../da/dbd/namespacetheo_1_1recomp.html#a7364f8c94855a2a871a9d6e1057989f3" title="a function which is called by recomp_t to resolve external symbols">theo::recomp::resolver_t</a> resolver = [&amp;](std::string sym) -&gt; std::uintptr_t {</div>
<div class="line"><span class="lineno"> 88</span> <span class="keyword">auto</span> loaded_modules = std::make_unique&lt;HMODULE[]&gt;(64);</div>
<div class="line"><span class="lineno"> 89</span> std::uintptr_t result = 0u, loaded_module_sz = 0u;</div>
<div class="line"><span class="lineno"> 90</span> <span class="keywordflow">if</span> (!EnumProcessModules(GetCurrentProcess(), loaded_modules.get(), 512,</div>
<div class="line"><span class="lineno"> 91</span> (PDWORD)&amp;loaded_module_sz))</div>
<div class="line"><span class="lineno"> 92</span> <span class="keywordflow">return</span> {};</div>
<div class="line"><span class="lineno"> 93</span> </div>
<div class="line"><span class="lineno"> 94</span> <span class="keywordflow">for</span> (<span class="keyword">auto</span> i = 0u; i &lt; loaded_module_sz / 8u; i++) {</div>
<div class="line"><span class="lineno"> 95</span> <span class="keywordtype">wchar_t</span> file_name[MAX_PATH] = L<span class="stringliteral">&quot;&quot;</span>;</div>
<div class="line"><span class="lineno"> 96</span> <span class="keywordflow">if</span> (!GetModuleFileNameExW(GetCurrentProcess(), loaded_modules.get()[i],</div>
<div class="line"><span class="lineno"> 97</span> file_name, _countof(file_name)))</div>
<div class="line"><span class="lineno"> 98</span> <span class="keywordflow">continue</span>;</div>
<div class="line"><span class="lineno"> 99</span> </div>
<div class="line"><span class="lineno"> 100</span> <span class="keywordflow">if</span> ((result = <span class="keyword">reinterpret_cast&lt;</span>std::uintptr_t<span class="keyword">&gt;</span>(</div>
<div class="line"><span class="lineno"> 101</span> GetProcAddress(LoadLibraryW(file_name), sym.c_str()))))</div>
<div class="line"><span class="lineno"> 102</span> <span class="keywordflow">break</span>;</div>
<div class="line"><span class="lineno"> 103</span> }</div>
<div class="line"><span class="lineno"> 104</span> <span class="keywordflow">return</span> result;</div>
<div class="line"><span class="lineno"> 105</span> };</div>
<div class="line"><span class="lineno"> 106</span> </div>
<div class="line"><span class="lineno"> 107</span> <span class="comment">// init enc/dec tables only once... important that this is done before adding</span></div>
<div class="line"><span class="lineno"> 108</span> <span class="comment">// obfuscation passes to the engine...</span></div>
<div class="line"><span class="lineno"> 109</span> <span class="comment">//</span></div>
<div class="line"><span class="lineno"> 110</span> xed_tables_init();</div>
<div class="line"><span class="lineno"> 111</span> </div>
<div class="line"><span class="lineno"> 112</span> <span class="comment">// order matters, the order in which the pass is added is the order they</span></div>
<div class="line"><span class="lineno"> 113</span> <span class="comment">// will be executed!</span></div>
<div class="line"><span class="lineno"> 114</span> <span class="comment">//</span></div>
<div class="line"><span class="lineno"> 115</span> <span class="keyword">auto</span> engine = <a class="code hl_function" href="../../d9/d18/classtheo_1_1obf_1_1engine__t.html#a58715f5c3ade824a65e602aba570040e" title="get the singleton object of this class.">theo::obf::engine_t::get</a>();</div>
<div class="line"><span class="lineno"> 116</span> </div>
<div class="line"><span class="lineno"> 117</span> <span class="comment">// add in our hello world pass here</span></div>
<div class="line"><span class="lineno"> 118</span> <span class="comment">//</span></div>
<div class="line"><span class="lineno"> 119</span> engine-&gt;add_pass(<a class="code hl_function" href="../../d5/d6a/classtheo_1_1obf_1_1hello__world__pass__t.html#aa556436f48335fe485d96ebc44ac2293">theo::obf::hello_world_pass_t::get</a>());</div>
<div class="line"><span class="lineno"> 120</span> </div>
<div class="line"><span class="lineno"> 121</span> <span class="comment">// add the rest of the passes in this order. this order is important.</span></div>
<div class="line"><span class="lineno"> 122</span> <span class="comment">//</span></div>
<div class="line"><span class="lineno"> 123</span> engine-&gt;add_pass(<a class="code hl_function" href="../../dc/d39/classtheo_1_1obf_1_1reloc__transform__pass__t.html#a89aa46da5f721057cd8cf5189207d464">theo::obf::reloc_transform_pass_t::get</a>());</div>
<div class="line"><span class="lineno"> 124</span> engine-&gt;add_pass(<a class="code hl_function" href="../../d5/d08/classtheo_1_1obf_1_1next__inst__pass__t.html#a964e6f5291ccba0442519f2563b3a2e9">theo::obf::next_inst_pass_t::get</a>());</div>
<div class="line"><span class="lineno"> 125</span> engine-&gt;add_pass(<a class="code hl_function" href="../../d6/dc1/classtheo_1_1obf_1_1jcc__rewrite__pass__t.html#afc17278f751fe3f5868c988faffb3c92">theo::obf::jcc_rewrite_pass_t::get</a>());</div>
<div class="line"><span class="lineno"> 126</span> </div>
<div class="line"><span class="lineno"> 127</span> std::string entry_name;</div>
<div class="line"><span class="lineno"> 128</span> std::cout &lt;&lt; <span class="stringliteral">&quot;enter the name of the entry point: &quot;</span>;</div>
<div class="line"><span class="lineno"> 129</span> std::cin &gt;&gt; entry_name;</div>
<div class="line"><span class="lineno"> 130</span> </div>
<div class="line"><span class="lineno"> 131</span> <span class="comment">// create a theo object and pass in the lib, your allocator, copier, and</span></div>
<div class="line"><span class="lineno"> 132</span> <span class="comment">// resolver functions, as well as the entry point symbol name.</span></div>
<div class="line"><span class="lineno"> 133</span> <span class="comment">//</span></div>
<div class="line"><span class="lineno"> 134</span> <a class="code hl_class" href="../../d9/dbc/classtheo_1_1theo__t.html" title="the main class which encapsulates a symbol table, decomp, and recomp objects. This class is a bridge ...">theo::theo_t</a> t(fdata, {allocator, copier, resolver}, entry_name.data());</div>
<div class="line"><span class="lineno"> 135</span> </div>
<div class="line"><span class="lineno"> 136</span> <span class="comment">// call the decompose method to decompose the lib into coff files and extract</span></div>
<div class="line"><span class="lineno"> 137</span> <span class="comment">// the symbols that are used. the result of this call will be an optional</span></div>
<div class="line"><span class="lineno"> 138</span> <span class="comment">// value containing the number of symbols extracted.</span></div>
<div class="line"><span class="lineno"> 139</span> <span class="comment">//</span></div>
<div class="line"><span class="lineno"> 140</span> <span class="keyword">auto</span> res = t.decompose();</div>
<div class="line"><span class="lineno"> 141</span> </div>
<div class="line"><span class="lineno"> 142</span> <span class="keywordflow">if</span> (!res.has_value()) {</div>
<div class="line"><span class="lineno"> 143</span> spdlog::error(<span class="stringliteral">&quot;decomposition failed...\n&quot;</span>);</div>
<div class="line"><span class="lineno"> 144</span> <span class="keywordflow">return</span> -1;</div>
<div class="line"><span class="lineno"> 145</span> }</div>
<div class="line"><span class="lineno"> 146</span> </div>
<div class="line"><span class="lineno"> 147</span> spdlog::info(<span class="stringliteral">&quot;decomposed {} symbols...&quot;</span>, res.value());</div>
<div class="line"><span class="lineno"> 148</span> <span class="keyword">auto</span> entry_pnt = t.compose();</div>
<div class="line"><span class="lineno"> 149</span> spdlog::info(<span class="stringliteral">&quot;entry point address: {:X}&quot;</span>, entry_pnt);</div>
<div class="line"><span class="lineno"> 150</span> <span class="keyword">reinterpret_cast&lt;</span><span class="keywordtype">void</span> (*)()<span class="keyword">&gt;</span>(entry_pnt)();</div>
<div class="line"><span class="lineno"> 151</span>}</div>
</div><!-- fragment -->
<p class="reference">References <a class="el" href="../../d2/d26/theo_8cpp_source.html#l00056">theo::theo_t::compose()</a>, <a class="el" href="../../d2/d26/theo_8cpp_source.html#l00045">theo::theo_t::decompose()</a>, <a class="el" href="../../db/dae/hello__world__pass_8hpp_source.html#l00045">theo::obf::hello_world_pass_t::get()</a>, <a class="el" href="../../da/d5c/engine_8cpp_source.html#l00034">theo::obf::engine_t::get()</a>, <a class="el" href="../../d9/db4/jcc__rewrite__pass_8cpp_source.html#l00035">theo::obf::jcc_rewrite_pass_t::get()</a>, <a class="el" href="../../df/d7d/next__inst__pass_8cpp_source.html#l00034">theo::obf::next_inst_pass_t::get()</a>, and <a class="el" href="../../d6/da4/reloc__transform__pass_8cpp_source.html#l00034">theo::obf::reloc_transform_pass_t::get()</a>.</p>
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