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42 lines
1.7 KiB
42 lines
1.7 KiB
3 years ago
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#pragma once
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#include <transform.hpp>
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#include <vmp2.hpp>
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namespace vm {
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/// <summary>
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/// vm::ctx_t class is used to auto generate vm_entry, calc_jmp, and other
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/// per-vm entry information... creating a vm::ctx_t object can make it easier
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/// to pass around information pertaining to a given vm entry...
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/// </summary>
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class ctx_t {
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public:
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/// <summary>
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/// default constructor for vm::ctx_t... all information for a given vm entry
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/// must be provided...
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/// </summary>
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/// <param name="module_base">the linear virtual address of the module
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/// base...</param> <param name="image_base">image base from optional nt
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/// header... <a
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/// href="https://docs.microsoft.com/en-us/windows/win32/api/winnt/ns-winnt-image_optional_header64">IMAGE_OPTIONAL_HEADER64</a>...</param>
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/// <param name="image_size">image size from optional nt header... <a
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/// href="https://docs.microsoft.com/en-us/windows/win32/api/winnt/ns-winnt-image_optional_header64">IMAGE_OPTIONAL_HEADER64</a>...</param>
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/// <param name="vm_entry_rva">relative virtual address from the module base
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/// address to the first push prior to a vm entry...</param>
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explicit ctx_t(std::uintptr_t module_base, std::uintptr_t image_base,
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std::uintptr_t image_size, std::uintptr_t vm_entry_rva);
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/// <summary>
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/// init all per-vm entry data such as vm_entry, calc_jmp, and vm handlers...
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/// </summary>
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/// <returns>returns true if no errors...</returns>
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bool init();
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const std::uintptr_t module_base, image_base, vm_entry_rva, image_size;
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/// <summary>
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/// the order in which VIP advances...
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/// </summary>
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vmp2::exec_type_t exec_type;
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zydis_routine_t vm_entry;
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};
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} // namespace vm
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