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replace hook=3 with GetProcAddress hook

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This commit is contained in:
FunkyFr3sh 2023-08-06 09:09:38 +02:00
parent fb835c617e
commit 6c3790cd24
5 changed files with 68 additions and 34 deletions
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54
src/hook.c
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@ -53,11 +53,12 @@ LOADLIBRARYAPROC real_LoadLibraryA = LoadLibraryA;
LOADLIBRARYWPROC real_LoadLibraryW = LoadLibraryW;
LOADLIBRARYEXAPROC real_LoadLibraryExA = LoadLibraryExA;
LOADLIBRARYEXWPROC real_LoadLibraryExW = LoadLibraryExW;
GETPROCADDRESSPROC real_GetProcAddress = GetProcAddress;
GETDISKFREESPACEAPROC real_GetDiskFreeSpaceA = GetDiskFreeSpaceA;
COCREATEINSTANCEPROC real_CoCreateInstance = CoCreateInstance;
SETUNHANDLEDEXCEPTIONFILTERPROC real_SetUnhandledExceptionFilter = SetUnhandledExceptionFilter;
static HOOKLIST g_hooks[] =
HOOKLIST g_hook_hooklist[] =
{
{
"user32.dll",
@ -66,8 +67,8 @@ static HOOKLIST g_hooks[] =
{ "ClipCursor", (PROC)fake_ClipCursor, (PROC*)&real_ClipCursor, 0 },
{ "ShowCursor", (PROC)fake_ShowCursor, (PROC*)&real_ShowCursor, 0 },
{ "SetCursor", (PROC)fake_SetCursor, (PROC*)&real_SetCursor, 0 },
{ "GetWindowRect", (PROC)fake_GetWindowRect, (PROC*)&real_GetWindowRect, SKIP_HOOK3 },
{ "GetClientRect", (PROC)fake_GetClientRect, (PROC*)&real_GetClientRect, SKIP_HOOK3 },
{ "GetWindowRect", (PROC)fake_GetWindowRect, (PROC*)&real_GetWindowRect, 0 },
{ "GetClientRect", (PROC)fake_GetClientRect, (PROC*)&real_GetClientRect, 0 },
{ "ClientToScreen", (PROC)fake_ClientToScreen, (PROC*)&real_ClientToScreen, 0 },
{ "ScreenToClient", (PROC)fake_ScreenToClient, (PROC*)&real_ScreenToClient, 0 },
{ "SetCursorPos", (PROC)fake_SetCursorPos, (PROC*)&real_SetCursorPos, 0 },
@ -96,44 +97,45 @@ static HOOKLIST g_hooks[] =
{
"ole32.dll",
{
{ "CoCreateInstance", (PROC)fake_CoCreateInstance, (PROC*)&real_CoCreateInstance, SKIP_HOOK2 | SKIP_HOOK3 },
{ "CoCreateInstance", (PROC)fake_CoCreateInstance, (PROC*)&real_CoCreateInstance, SKIP_HOOK2 },
{ "", NULL, NULL, 0 }
}
},
{
"dinput.dll",
{
{ "DirectInputCreateA", (PROC)fake_DirectInputCreateA, (PROC*)&real_DirectInputCreateA, SKIP_HOOK2 | SKIP_HOOK3 },
{ "DirectInputCreateW", (PROC)fake_DirectInputCreateW, (PROC*)&real_DirectInputCreateW, SKIP_HOOK2 | SKIP_HOOK3 },
{ "DirectInputCreateEx", (PROC)fake_DirectInputCreateEx, (PROC*)&real_DirectInputCreateEx, SKIP_HOOK2 | SKIP_HOOK3 },
{ "DirectInputCreateA", (PROC)fake_DirectInputCreateA, (PROC*)&real_DirectInputCreateA, SKIP_HOOK2 },
{ "DirectInputCreateW", (PROC)fake_DirectInputCreateW, (PROC*)&real_DirectInputCreateW, SKIP_HOOK2 },
{ "DirectInputCreateEx", (PROC)fake_DirectInputCreateEx, (PROC*)&real_DirectInputCreateEx, SKIP_HOOK2 },
{ "", NULL, NULL, 0 }
}
},
{
"dinput8.dll",
{
{ "DirectInput8Create", (PROC)fake_DirectInput8Create, (PROC*)&real_DirectInput8Create, SKIP_HOOK2 | SKIP_HOOK3 },
{ "DirectInput8Create", (PROC)fake_DirectInput8Create, (PROC*)&real_DirectInput8Create, SKIP_HOOK2 },
{ "", NULL, NULL, 0 }
}
},
{
"gdi32.dll",
{
{ "StretchBlt", (PROC)fake_StretchBlt, (PROC*)&real_StretchBlt, SKIP_HOOK2 | SKIP_HOOK3 },
{ "SetDIBitsToDevice", (PROC)fake_SetDIBitsToDevice, (PROC*)&real_SetDIBitsToDevice, SKIP_HOOK2 | SKIP_HOOK3 },
{ "StretchDIBits", (PROC)fake_StretchDIBits, (PROC*)&real_StretchDIBits, SKIP_HOOK2 | SKIP_HOOK3 },
{ "GetDeviceCaps", (PROC)fake_GetDeviceCaps, (PROC*)&real_GetDeviceCaps, SKIP_HOOK3 },
{ "StretchBlt", (PROC)fake_StretchBlt, (PROC*)&real_StretchBlt, SKIP_HOOK2 },
{ "SetDIBitsToDevice", (PROC)fake_SetDIBitsToDevice, (PROC*)&real_SetDIBitsToDevice, SKIP_HOOK2 },
{ "StretchDIBits", (PROC)fake_StretchDIBits, (PROC*)&real_StretchDIBits, SKIP_HOOK2 },
{ "GetDeviceCaps", (PROC)fake_GetDeviceCaps, (PROC*)&real_GetDeviceCaps, 0 },
{ "", NULL, NULL, 0 }
}
},
{
"kernel32.dll",
{
{ "LoadLibraryA", (PROC)fake_LoadLibraryA, (PROC*)&real_LoadLibraryA, SKIP_HOOK2 | SKIP_HOOK3 },
{ "LoadLibraryW", (PROC)fake_LoadLibraryW, (PROC*)&real_LoadLibraryW, SKIP_HOOK2 | SKIP_HOOK3 },
{ "LoadLibraryExA", (PROC)fake_LoadLibraryExA, (PROC*)&real_LoadLibraryExA, SKIP_HOOK2 | SKIP_HOOK3 },
{ "LoadLibraryExW", (PROC)fake_LoadLibraryExW, (PROC*)&real_LoadLibraryExW, SKIP_HOOK2 | SKIP_HOOK3 },
{ "GetDiskFreeSpaceA", (PROC)fake_GetDiskFreeSpaceA, (PROC*)&real_GetDiskFreeSpaceA, SKIP_HOOK2 | SKIP_HOOK3 },
{ "LoadLibraryA", (PROC)fake_LoadLibraryA, (PROC*)&real_LoadLibraryA, SKIP_HOOK2 },
{ "LoadLibraryW", (PROC)fake_LoadLibraryW, (PROC*)&real_LoadLibraryW, SKIP_HOOK2 },
{ "LoadLibraryExA", (PROC)fake_LoadLibraryExA, (PROC*)&real_LoadLibraryExA, SKIP_HOOK2 },
{ "LoadLibraryExW", (PROC)fake_LoadLibraryExW, (PROC*)&real_LoadLibraryExW, SKIP_HOOK2 },
{ "GetProcAddress", (PROC)fake_GetProcAddress, (PROC*)&real_GetProcAddress, SKIP_HOOK2 },
{ "GetDiskFreeSpaceA", (PROC)fake_GetDiskFreeSpaceA, (PROC*)&real_GetDiskFreeSpaceA, SKIP_HOOK2 },
{ "", NULL, NULL, 0 }
}
},
@ -365,16 +367,13 @@ void hook_patch_iat_list(HMODULE hmod, BOOL unhook, HOOKLIST* hooks)
void hook_create(HOOKLIST* hooks, BOOL initial_hook)
{
#ifdef _MSC_VER
if ((g_hook_method == 2 || g_hook_method == 3) && initial_hook)
if ((g_hook_method == 2) && initial_hook)
{
for (int i = 0; hooks[i].module_name[0]; i++)
{
for (int x = 0; hooks[i].data[x].function_name[0]; x++)
{
if (g_hook_method == 2 && (hooks[i].data[x].flags & SKIP_HOOK2))
continue;
if (g_hook_method == 3 && (hooks[i].data[x].flags & SKIP_HOOK3))
if ((hooks[i].data[x].flags & SKIP_HOOK2))
continue;
DetourTransactionBegin();
@ -453,16 +452,13 @@ void hook_create(HOOKLIST* hooks, BOOL initial_hook)
void hook_revert(HOOKLIST* hooks)
{
#ifdef _MSC_VER
if (g_hook_method == 2 || g_hook_method == 3)
if (g_hook_method == 2)
{
for (int i = 0; hooks[i].module_name[0]; i++)
{
for (int x = 0; hooks[i].data[x].function_name[0]; x++)
{
if (g_hook_method == 2 && (hooks[i].data[x].flags & SKIP_HOOK2))
continue;
if (g_hook_method == 3 && (hooks[i].data[x].flags & SKIP_HOOK3))
if ((hooks[i].data[x].flags & SKIP_HOOK2))
continue;
DetourTransactionBegin();
@ -546,7 +542,7 @@ void hook_init(BOOL initial_hook)
hook_patch_iat(GetModuleHandle("AcGenral"), FALSE, "user32.dll", "SetWindowsHookExA", (PROC)fake_SetWindowsHookExA);
}
hook_create((HOOKLIST*)&g_hooks, initial_hook);
hook_create((HOOKLIST*)&g_hook_hooklist, initial_hook);
g_hook_active = TRUE;
}
@ -558,7 +554,7 @@ void hook_exit()
{
g_hook_active = FALSE;
hook_revert((HOOKLIST*)&g_hooks);
hook_revert((HOOKLIST*)&g_hook_hooklist);
#if defined(_DEBUG) && defined(_MSC_VER)
DetourTransactionBegin();