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#142

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HolographicHat
2025-08-30 11:39:41 +08:00
parent 49f8679996
commit f8b8a5a9e1
2 changed files with 31 additions and 2 deletions
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4
YaeAchievement/NativeMethods.txt
View File

@@ -26,3 +26,7 @@ OpenProcess
GetModuleFileNameEx
LoadLibraryEx
CreateToolhelp32Snapshot
Module32First
Module32Next

29
YaeAchievement/src/Utilities/GameProcess.cs
View File

@@ -2,6 +2,7 @@
using System.Runtime.InteropServices;
using Windows.Win32;
using Windows.Win32.Foundation;
using Windows.Win32.System.Diagnostics.ToolHelp;
using Windows.Win32.System.LibraryLoader;
using Windows.Win32.System.Threading;
using Spectre.Console;
@@ -73,7 +74,29 @@ internal sealed unsafe class GameProcess {
if (Native.WaitForSingleObject(hThread, 2000) == 0) {
Native.VirtualFreeEx(Handle, lpLibPath, 0, MEM_RELEASE);
}
var libHandle = Native.LoadLibraryEx(libPath, LOAD_LIBRARY_FLAGS.DONT_RESOLVE_DLL_REFERENCES);
// Get lib base address in target process
byte* baseAddress = null;
using (var hSnap = Native.CreateToolhelp32Snapshot_SafeHandle(CREATE_TOOLHELP_SNAPSHOT_FLAGS.TH32CS_SNAPMODULE, Id)) {
if (hSnap.IsInvalid) {
throw new Win32Exception { Data = { { "api", "CreateToolhelp32Snapshot" } } };
}
var moduleEntry = new MODULEENTRY32 {
dwSize = (uint) sizeof(MODULEENTRY32)
};
if (Native.Module32First(hSnap, ref moduleEntry)) {
do {
if (new string((sbyte*) &moduleEntry.szExePath._0) == libPath) {
baseAddress = moduleEntry.modBaseAddr;
break;
}
} while (Native.Module32Next(hSnap, ref moduleEntry));
}
}
if (baseAddress == null) {
throw new InvalidOperationException("No matching module found in target process.");
}
//
using var libHandle = Native.LoadLibraryEx(libPath, LOAD_LIBRARY_FLAGS.DONT_RESOLVE_DLL_REFERENCES);
if (libHandle.IsInvalid) {
throw new Win32Exception { Data = { { "api", "LoadLibraryEx" } } };
}
@@ -81,7 +104,9 @@ internal sealed unsafe class GameProcess {
if (libMainProc.IsNull) {
throw new Win32Exception { Data = { { "api", "GetProcAddress" } } };
}
var lpStartAddress2 = (delegate*unmanaged[Stdcall]<void*, uint>) libMainProc.Value; // THREAD_START_ROUTINE
var libMainProcRVA = libMainProc.Value - libHandle.DangerousGetHandle();
var lpStartAddress2 = (delegate*unmanaged[Stdcall]<void*, uint>) (baseAddress + libMainProcRVA); // THREAD_START_ROUTINE
//
var hThread2 = Native.CreateRemoteThread(Handle, null, 0, lpStartAddress2, null, 0);
if (hThread2.IsNull) {
throw new Win32Exception { Data = { { "api", "CreateRemoteThread2" } } };