mirror of
https://github.com/Jacobwasbeast/LegacyWeaveLoader.git
synced 2026-09-23 09:22:34 +00:00
Rebrand LegacyForge to Weave Loader
Rename across entire codebase: - LegacyForge -> WeaveLoader (identifiers, namespaces, classes, DLLs) - LegacyForgeRuntime -> WeaveLoaderRuntime (C++ project) - LegacyForge.API/Core/Launcher -> WeaveLoader.API/Core/Launcher (C# projects) - [LegacyForge] -> [WeaveLoader] (log prefixes) - legacyforge -> weaveloader (config files, log files, backup suffixes) - Display name "Weave Loader" in README, CONTRIBUTING, LICENSE
This commit is contained in:
Jacobwasbeast
@@ -0,0 +1,207 @@
|
||||
using System.ComponentModel;
|
||||
using System.Diagnostics;
|
||||
using System.Runtime.InteropServices;
|
||||
using System.Text;
|
||||
|
||||
namespace WeaveLoader.Launcher;
|
||||
|
||||
/// <summary>
|
||||
/// Handles launching the game process in a suspended state and injecting
|
||||
/// the WeaveLoaderRuntime DLL via CreateRemoteThread + LoadLibraryW.
|
||||
/// </summary>
|
||||
public static class Injector
|
||||
{
|
||||
public record InjectedProcess(
|
||||
IntPtr ProcessHandle,
|
||||
IntPtr ThreadHandle,
|
||||
int ProcessId);
|
||||
|
||||
public static InjectedProcess LaunchSuspended(string exePath, string? workingDir = null)
|
||||
{
|
||||
workingDir ??= Path.GetDirectoryName(exePath);
|
||||
|
||||
var si = new STARTUPINFO { cb = Marshal.SizeOf<STARTUPINFO>() };
|
||||
|
||||
bool success = CreateProcess(
|
||||
exePath,
|
||||
null,
|
||||
IntPtr.Zero,
|
||||
IntPtr.Zero,
|
||||
false,
|
||||
CREATE_SUSPENDED,
|
||||
IntPtr.Zero,
|
||||
workingDir,
|
||||
ref si,
|
||||
out PROCESS_INFORMATION pi);
|
||||
|
||||
if (!success)
|
||||
throw new Win32Exception(Marshal.GetLastWin32Error(),
|
||||
$"Failed to launch process: {exePath}");
|
||||
|
||||
return new InjectedProcess(pi.hProcess, pi.hThread, pi.dwProcessId);
|
||||
}
|
||||
|
||||
public static void InjectDll(InjectedProcess process, string dllPath)
|
||||
{
|
||||
string fullDllPath = Path.GetFullPath(dllPath);
|
||||
if (!File.Exists(fullDllPath))
|
||||
throw new FileNotFoundException($"Runtime DLL not found: {fullDllPath}");
|
||||
|
||||
byte[] dllPathBytes = Encoding.Unicode.GetBytes(fullDllPath + '\0');
|
||||
|
||||
IntPtr remoteMem = VirtualAllocEx(
|
||||
process.ProcessHandle,
|
||||
IntPtr.Zero,
|
||||
(uint)dllPathBytes.Length,
|
||||
MEM_COMMIT | MEM_RESERVE,
|
||||
PAGE_READWRITE);
|
||||
|
||||
if (remoteMem == IntPtr.Zero)
|
||||
{
|
||||
TerminateProcess(process.ProcessHandle, 1);
|
||||
throw new Win32Exception(Marshal.GetLastWin32Error(),
|
||||
"Failed to allocate memory in target process");
|
||||
}
|
||||
|
||||
bool wrote = WriteProcessMemory(
|
||||
process.ProcessHandle,
|
||||
remoteMem,
|
||||
dllPathBytes,
|
||||
(uint)dllPathBytes.Length,
|
||||
out _);
|
||||
|
||||
if (!wrote)
|
||||
{
|
||||
TerminateProcess(process.ProcessHandle, 1);
|
||||
throw new Win32Exception(Marshal.GetLastWin32Error(),
|
||||
"Failed to write DLL path to target process");
|
||||
}
|
||||
|
||||
IntPtr kernel32 = GetModuleHandle("kernel32.dll");
|
||||
IntPtr loadLibraryW = GetProcAddress(kernel32, "LoadLibraryW");
|
||||
|
||||
IntPtr remoteThread = CreateRemoteThread(
|
||||
process.ProcessHandle,
|
||||
IntPtr.Zero,
|
||||
0,
|
||||
loadLibraryW,
|
||||
remoteMem,
|
||||
0,
|
||||
out _);
|
||||
|
||||
if (remoteThread == IntPtr.Zero)
|
||||
{
|
||||
TerminateProcess(process.ProcessHandle, 1);
|
||||
throw new Win32Exception(Marshal.GetLastWin32Error(),
|
||||
"Failed to create remote thread for DLL injection");
|
||||
}
|
||||
|
||||
uint waitResult = WaitForSingleObject(remoteThread, 10000);
|
||||
if (waitResult != 0)
|
||||
{
|
||||
CloseHandle(remoteThread);
|
||||
VirtualFreeEx(process.ProcessHandle, remoteMem, 0, MEM_RELEASE);
|
||||
TerminateProcess(process.ProcessHandle, 1);
|
||||
throw new Exception(
|
||||
$"Timed out waiting for DLL injection (WaitForSingleObject returned {waitResult})");
|
||||
}
|
||||
|
||||
GetExitCodeThread(remoteThread, out uint exitCode);
|
||||
CloseHandle(remoteThread);
|
||||
VirtualFreeEx(process.ProcessHandle, remoteMem, 0, MEM_RELEASE);
|
||||
|
||||
if (exitCode == 0)
|
||||
{
|
||||
TerminateProcess(process.ProcessHandle, 1);
|
||||
throw new Exception(
|
||||
"DLL injection failed: LoadLibraryW returned NULL.\n" +
|
||||
"This usually means the DLL or one of its dependencies could not be found.\n" +
|
||||
"Make sure the MSVC redistributable is installed and the DLL was built in Release mode.");
|
||||
}
|
||||
|
||||
Console.WriteLine($" LoadLibraryW returned module handle 0x{exitCode:X} -- DLL loaded in target process.");
|
||||
}
|
||||
|
||||
public static void ResumeProcess(InjectedProcess process)
|
||||
{
|
||||
ResumeThread(process.ThreadHandle);
|
||||
CloseHandle(process.ThreadHandle);
|
||||
}
|
||||
|
||||
#region Win32 Interop
|
||||
|
||||
private const uint CREATE_SUSPENDED = 0x00000004;
|
||||
private const uint MEM_COMMIT = 0x1000;
|
||||
private const uint MEM_RESERVE = 0x2000;
|
||||
private const uint MEM_RELEASE = 0x8000;
|
||||
private const uint PAGE_READWRITE = 0x04;
|
||||
|
||||
[StructLayout(LayoutKind.Sequential)]
|
||||
private struct STARTUPINFO
|
||||
{
|
||||
public int cb;
|
||||
public string lpReserved, lpDesktop, lpTitle;
|
||||
public int dwX, dwY, dwXSize, dwYSize;
|
||||
public int dwXCountChars, dwYCountChars, dwFillAttribute, dwFlags;
|
||||
public short wShowWindow, cbReserved2;
|
||||
public IntPtr lpReserved2, hStdInput, hStdOutput, hStdError;
|
||||
}
|
||||
|
||||
[StructLayout(LayoutKind.Sequential)]
|
||||
private struct PROCESS_INFORMATION
|
||||
{
|
||||
public IntPtr hProcess, hThread;
|
||||
public int dwProcessId, dwThreadId;
|
||||
}
|
||||
|
||||
[DllImport("kernel32.dll", SetLastError = true, CharSet = CharSet.Unicode)]
|
||||
private static extern bool CreateProcess(
|
||||
string lpApplicationName, string? lpCommandLine,
|
||||
IntPtr lpProcessAttributes, IntPtr lpThreadAttributes,
|
||||
bool bInheritHandles, uint dwCreationFlags,
|
||||
IntPtr lpEnvironment, string? lpCurrentDirectory,
|
||||
ref STARTUPINFO lpStartupInfo, out PROCESS_INFORMATION lpProcessInformation);
|
||||
|
||||
[DllImport("kernel32.dll", SetLastError = true)]
|
||||
private static extern IntPtr VirtualAllocEx(
|
||||
IntPtr hProcess, IntPtr lpAddress, uint dwSize,
|
||||
uint flAllocationType, uint flProtect);
|
||||
|
||||
[DllImport("kernel32.dll", SetLastError = true)]
|
||||
private static extern bool VirtualFreeEx(
|
||||
IntPtr hProcess, IntPtr lpAddress, uint dwSize, uint dwFreeType);
|
||||
|
||||
[DllImport("kernel32.dll", SetLastError = true)]
|
||||
private static extern bool WriteProcessMemory(
|
||||
IntPtr hProcess, IntPtr lpBaseAddress, byte[] lpBuffer,
|
||||
uint nSize, out int lpNumberOfBytesWritten);
|
||||
|
||||
[DllImport("kernel32.dll", SetLastError = true)]
|
||||
private static extern IntPtr CreateRemoteThread(
|
||||
IntPtr hProcess, IntPtr lpThreadAttributes, uint dwStackSize,
|
||||
IntPtr lpStartAddress, IntPtr lpParameter, uint dwCreationFlags,
|
||||
out uint lpThreadId);
|
||||
|
||||
[DllImport("kernel32.dll", CharSet = CharSet.Ansi)]
|
||||
private static extern IntPtr GetModuleHandle(string lpModuleName);
|
||||
|
||||
[DllImport("kernel32.dll", CharSet = CharSet.Ansi)]
|
||||
private static extern IntPtr GetProcAddress(IntPtr hModule, string lpProcName);
|
||||
|
||||
[DllImport("kernel32.dll")]
|
||||
private static extern uint WaitForSingleObject(IntPtr hHandle, uint dwMilliseconds);
|
||||
|
||||
[DllImport("kernel32.dll")]
|
||||
private static extern uint ResumeThread(IntPtr hThread);
|
||||
|
||||
[DllImport("kernel32.dll")]
|
||||
private static extern bool CloseHandle(IntPtr hObject);
|
||||
|
||||
[DllImport("kernel32.dll")]
|
||||
private static extern bool TerminateProcess(IntPtr hProcess, uint uExitCode);
|
||||
|
||||
[DllImport("kernel32.dll")]
|
||||
private static extern bool GetExitCodeThread(IntPtr hThread, out uint lpExitCode);
|
||||
|
||||
#endregion
|
||||
}
|
||||
Reference in New Issue
Block a user