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恍兮惚兮 2024-10-23 00:45:28 +08:00
parent 44ad71eb81
commit 441a47d195
1 changed files with 34 additions and 44 deletions
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78
LunaHook/engine64/livecaptions.cpp
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@ -2,49 +2,39 @@
bool livecaptions::attach_function()
{
// .text:0000000180001C98 push rbx
// .text:0000000180001C9A sub rsp, 20h
// .text:0000000180001C9E mov rbx, rcx
// .text:0000000180001CA1 call memmove_0
// .text:0000000180001CA6 mov rax, rbx
// .text:0000000180001CA9 add rsp, 20h
// .text:0000000180001CAD pop rbx
// .text:0000000180001CAE retn
HookParam hp;
hp.address = (uintptr_t)GetProcAddress(GetModuleHandle(L"vcruntime140_app.dll"), "memmove");
hp.text_fun = [](hook_stack *stack, HookParam *hp, uintptr_t *data, uintptr_t *split, size_t *len)
{
BYTE sig[] = {
0x40, 0x53, 0x48, 0x83, 0xEC, 0x20, 0x48, 0x8B, 0xD9,
0xE8, XX4};
auto a1 = stack->retaddr - sizeof(sig);
if ((stack->retaddr > (uintptr_t)GetModuleHandle(L"Microsoft.CognitiveServices.Speech.extension.embedded.sr.dll")))
if (memcmp((void *)a1, &sig, sizeof(sig) - 4) == 0)
{
static std::set<uintptr_t> once;
if (once.find(stack->retaddr) != once.end())
return;
once.insert(stack->retaddr);
// hp->text_fun=nullptr;
// hp->type=HOOK_EMPTY;
HookParam hpinternal;
hpinternal.address = a1; // 0xE551+(uintptr_t)GetModuleHandle(L"Microsoft.CognitiveServices.Speech.extension.embedded.sr.dll");
hpinternal.type = USING_STRING | CODEC_UTF8 | FULL_STRING;
hpinternal.text_fun = [](hook_stack *stack, HookParam *hp, uintptr_t *data, uintptr_t *split, size_t *len)
{
auto ptr = stack->rdx;
auto size = stack->r8;
if (size == strnlen((char *)ptr, TEXT_BUFFER_SIZE)) // 否则有短acsii
{
*data = ptr;
*len = size;
}
};
NewHook(hpinternal, "std::_Char_traits<char,int>::copy(void *, const void *, size_t)");
}
auto srdll = GetModuleHandle(L"Microsoft.CognitiveServices.Speech.extension.embedded.sr.dll");
if (!srdll)
return false;
auto [s, e] = Util::QueryModuleLimits(srdll);
bool succ = false;
// std::_Char_traits<char,int>::copy(void *, const void *, size_t)
// std::_Char_traits<char,int>::move(void *, const void *, size_t)
BYTE sig[] = {
0x40, 0x53, // push rbx
0x48, 0x83, 0xec, 0x20, // sub rsp,0x20
0x48, 0x8b, 0xd9, // mov rbx,rcx
0xe8, XX4, // call memmove_0 ，新版本改成call memcpy_0了
0x48, 0x8b, 0xc3, // mov rax,rbx
0x48, 0x83, 0xc4, 0x20, // add rsp,0x20
0x5b, // pop rbx
0xc3 // ret
};
return NewHook(hp, "vcruntime140_app:memmove");
for (auto addr : Util::SearchMemory(sig, sizeof(sig), PAGE_EXECUTE, s, e))
{
auto target = addr + 2 + 4 + 3 + 5 + *(int *)(addr + 2 + 4 + 3 + 1);
if (*(WORD *)target != 0x25ff)
continue;
HookParam hp;
hp.address = addr;
hp.type = USING_STRING | CODEC_UTF8 | FULL_STRING;
hp.text_fun = [](hook_stack *stack, HookParam *hp, uintptr_t *data, uintptr_t *split, size_t *len)
{
auto ptr = stack->rdx;
auto size = stack->r8;
*data = ptr;
*len = size;
};
succ |= NewHook(hp, "LiveCaptions");
}
return succ;
}