Grasscutters/RSAPatch
2
0
Fork 0
mirror of https://github.com/34736384/RSAPatch.git synced 2024-11-30 05:39:05 +00:00
Code Issues Packages Projects Releases Wiki Activity

detect multiple rsapatch and fix for wine

Browse Source
This commit is contained in:
RELOADED 2023-03-11 00:40:50 -05:00
parent c61adf3dae
commit f178750fea
1 changed files with 61 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

62
RSAPatch/dllmain.cpp
View File

@ -17,6 +17,7 @@ typedef enum _SECTION_INFORMATION_CLASS {
} SECTION_INFORMATION_CLASS, * PSECTION_INFORMATION_CLASS;
EXTERN_C NTSTATUS __stdcall NtQuerySection(HANDLE SectionHandle, SECTION_INFORMATION_CLASS InformationClass, PVOID InformationBuffer, ULONG InformationBufferSize, PULONG ResultLength);
EXTERN_C NTSTATUS __stdcall NtProtectVirtualMemory(HANDLE ProcessHandle, PVOID* BaseAddress, PULONG NumberOfBytesToProtect, ULONG NewAccessProtection, PULONG OldAccessProtection);
EXTERN_C NTSTATUS __stdcall NtPulseEvent(HANDLE EventHandle, PULONG PreviousState);
template <typename T>
class Array
@ -204,9 +205,12 @@ String* __fastcall hkReadToEnd(void* rcx, void* rdx)
void DisableVMP()
{
// restore hook at NtProtectVirtualMemory
auto ntdll = GetModuleHandleA("ntdll.dll");
bool linux = GetProcAddress(ntdll, "wine_get_version") != nullptr;
void* routine = linux ? (void*)NtPulseEvent : (void*)NtQuerySection;
DWORD old;
VirtualProtect(NtProtectVirtualMemory, 1, PAGE_EXECUTE_READWRITE, &old);
*(uintptr_t*)NtProtectVirtualMemory = *(uintptr_t*)NtQuerySection & ~(0xFFui64 << 32) | (uintptr_t)(*(uint32_t*)((uintptr_t)NtQuerySection + 4) - 1) << 32;
*(uintptr_t*)NtProtectVirtualMemory = *(uintptr_t*)routine & ~(0xFFui64 << 32) | (uintptr_t)(*(uint32_t*)((uintptr_t)routine + 4) - 1) << 32;
VirtualProtect(NtProtectVirtualMemory, 1, old, &old);
}
@ -272,11 +276,67 @@ void OldVersion() // <= 3.5.0
Utils::ConsolePrint("Hooked GetPrivateKey - Original at: %p\n", oGetPrivateKey);
}
void ACheckForThoseWhoCannotFollowInstructions(LPVOID instance)
{
if (!instance)
{
// this shouldn't happen
return;
}
char szModulePath[MAX_PATH]{};
GetModuleFileNameA((HMODULE)instance, szModulePath, MAX_PATH);
std::filesystem::path ModulePath = szModulePath;
std::string ModuleName = ModulePath.filename().string();
std::transform(ModuleName.begin(), ModuleName.end(), ModuleName.begin(), ::tolower);
if (ModuleName == "version.dll")
{
// check mhypbase.dll
auto mhypbase = GetModuleHandleA("mhypbase.dll");
if (!mhypbase)
return;
PIMAGE_DOS_HEADER dosHeader = (PIMAGE_DOS_HEADER)mhypbase;
PIMAGE_NT_HEADERS ntHeaders = (PIMAGE_NT_HEADERS)((uintptr_t)mhypbase + dosHeader->e_lfanew);
auto sizeOfImage = ntHeaders->OptionalHeader.SizeOfImage;
// over 1MB
if (sizeOfImage > 1 * 1024 * 1024)
return;
// uh oh
}
else
{
// check version.dll
auto version = GetModuleHandleA("version.dll");
if (!version)
return; // this shouldn't happen
ZeroMemory(szModulePath, MAX_PATH);
GetModuleFileNameA((HMODULE)version, szModulePath, MAX_PATH);
ModuleName = szModulePath;
std::transform(ModuleName.begin(), ModuleName.end(), ModuleName.begin(), ::tolower);
if (ModuleName.find("system32") != std::string::npos)
return;
// uh oh
}
// https://www.youtube.com/watch?v=9a_3wQHcm_Y
MessageBoxA(nullptr, "You may have more than one RSAPatch installed.\nPlease only use one RSAPatch to avoid instability.", "RSAPatch", MB_ICONWARNING);
}
DWORD __stdcall Thread(LPVOID p)
{
Utils::AttachConsole();
Utils::ConsolePrint("Waiting for game to startup\n");
ACheckForThoseWhoCannotFollowInstructions(p);
auto pid = GetCurrentProcessId();
while (true)
{