60 lines
1.4 KiB
C++
60 lines
1.4 KiB
C++
#include "pch.h"
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#include "Patches.h"
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#include <detours.h>
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int addressOffset;
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LONG Patches::Apply()
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{
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DetourTransactionBegin();
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for (Patch patch : patchList)
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DetourAttach(&(PVOID&)*patch.first, patch.second);
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return DetourTransactionCommit();
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}
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VOID Patches::ResolveOffset()
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{
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// the only surviving fragment of PolygonUtil.dll
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// RIP 05/08/2021 - 20/01/2022
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MEMORY_BASIC_INFORMATION mbi;
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DWORD ProcID = GetCurrentProcessId();
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HANDLE Handle = OpenProcess(PROCESS_ALL_ACCESS, TRUE, ProcID);
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unsigned int Opcode = 0xC7F18B56;
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int BaseAddress = 0x00001000;
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int Offset = 0x00010000;
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int Searches = 0xFFF;
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for (int i = 1; i <= Searches; i++)
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{
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int SearchAddress = Offset * i;
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int Address = SearchAddress + BaseAddress;
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if (VirtualQuery((LPVOID)Address, &mbi, sizeof(mbi)) == 0) continue;
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std::vector<int> buffer(mbi.RegionSize);
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if (!ReadProcessMemory(Handle, (LPCVOID)Address, &buffer[0], buffer.size(), NULL)) continue;
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if (buffer[0] == Opcode)
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{
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addressOffset = SearchAddress;
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break;
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}
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if (SearchAddress == Offset * Searches)
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{
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ExitProcess(EXIT_FAILURE);
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}
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}
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}
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INT Patches::GetAddressByOffset(int address)
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{
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if (!addressOffset) ResolveOffset();
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return address + addressOffset;
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} |