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KiriKiriZ3 hook

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This commit is contained in:
Blu3train 2023-08-29 23:03:42 +02:00
parent 0f5c3c8b5f
commit 1318c2f490
1 changed files with 48 additions and 0 deletions
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48
texthook/engine/engine.cc
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@ -1439,6 +1439,53 @@ bool InsertKiriKiriZHook2()
return true;
}
bool KiriKiriZ3Filter(LPVOID data, DWORD *size, HookParam *, BYTE)
{
auto text = reinterpret_cast<LPWSTR>(data);
auto len = reinterpret_cast<size_t *>(size);
WideCharFilter(text, len, L'\x000A');
if (cpp_wcsnstr(text, L"%", *len/sizeof(wchar_t))) {
WideStringFilterBetween(text, len, L"%", 1, L"%", 1);
}
return true;
}
bool InsertKiriKiriZHook3()
{
//by Blu3train
/*
* Sample games:
* https://vndb.org/r109253
*/
const BYTE bytes[] = {
0x66, 0x83, 0x3F, 0x00, // cmp word ptr [edi],00 << hook here
0x75, 0x06, // jne Imouto_no_Seiiki.exe+195C1
0x33, 0xDB, // xor ebx,ebx
0x89, 0x1E, // mov [esi],ebx
0xEB, 0x1B // jmp Imouto_no_Seiiki.exe+195DC
};
ULONG range = min(processStopAddress - processStartAddress, MAX_REL_ADDR);
ULONG addr = MemDbg::findBytes(bytes, sizeof(bytes), processStartAddress, processStartAddress + range);
if (!addr) {
ConsoleOutput("vnreng:KiriKiriZ3: pattern not found");
return false;
}
HookParam hp = {};
hp.address = addr;
hp.offset = pusha_edi_off -4;
hp.split = pusha_edx_off -4;
hp.type = NO_CONTEXT | USING_UNICODE | USING_STRING | USING_SPLIT;
hp.filter_fun = KiriKiriZ3Filter;
ConsoleOutput("vnreng: INSERT KiriKiriZ3");
NewHook(hp, "KiriKiriZ3");
return true;
}
bool KiriKiriZ_msvcFilter(LPVOID data, DWORD *size, HookParam *, BYTE)
{
auto text = reinterpret_cast<LPWSTR>(data);
@ -1537,6 +1584,7 @@ textrender.dll+BE5F - C3 - ret
bool InsertKiriKiriZHook()
{
bool ok = InsertKiriKiriZHook_msvc();
ok = InsertKiriKiriZHook3() || ok;
return InsertKiriKiriZHook2() || InsertKiriKiriZHook1() || ok;
}