68 lines
2.0 KiB
C++
68 lines
2.0 KiB
C++
#include "utils.hpp"
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bool utils::ReadFileToMemory(const std::string& file_path, std::vector<uint8_t>* out_buffer)
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{
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std::ifstream file_ifstream(file_path, std::ios::binary);
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if (!file_ifstream)
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return false;
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out_buffer->assign((std::istreambuf_iterator<char>(file_ifstream)), std::istreambuf_iterator<char>());
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file_ifstream.close();
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return true;
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}
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bool utils::CreateFileFromMemory(const std::string& desired_file_path, const char* address, size_t size)
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{
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std::ofstream file_ofstream(desired_file_path.c_str(), std::ios_base::out | std::ios_base::binary);
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if (!file_ofstream.write(address, size))
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{
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file_ofstream.close();
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return false;
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}
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file_ofstream.close();
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return true;
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}
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uint64_t utils::GetKernelModuleAddress(const std::string& module_name)
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{
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void* buffer = nullptr;
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DWORD buffer_size = 0;
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NTSTATUS status = NtQuerySystemInformation(static_cast<SYSTEM_INFORMATION_CLASS>(nt::SystemModuleInformation), buffer, buffer_size, &buffer_size);
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while (status == nt::STATUS_INFO_LENGTH_MISMATCH)
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{
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VirtualFree(buffer, 0, MEM_RELEASE);
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buffer = VirtualAlloc(nullptr, buffer_size, MEM_COMMIT | MEM_RESERVE, PAGE_READWRITE);
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status = NtQuerySystemInformation(static_cast<SYSTEM_INFORMATION_CLASS>(nt::SystemModuleInformation), buffer, buffer_size, &buffer_size);
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}
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if (!NT_SUCCESS(status))
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{
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VirtualFree(buffer, 0, MEM_RELEASE);
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return 0;
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}
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const auto modules = static_cast<nt::PRTL_PROCESS_MODULES>(buffer);
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for (auto i = 0u; i < modules->NumberOfModules; ++i)
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{
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const std::string current_module_name = std::string(reinterpret_cast<char*>(modules->Modules[i].FullPathName) + modules->Modules[i].OffsetToFileName);
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if (!_stricmp(current_module_name.c_str(), module_name.c_str()))
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{
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const uint64_t result = reinterpret_cast<uint64_t>(modules->Modules[i].ImageBase);
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VirtualFree(buffer, 0, MEM_RELEASE);
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return result;
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}
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}
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VirtualFree(buffer, 0, MEM_RELEASE);
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return 0;
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} |