Rim/iw4x-client
Rim/iw4x-client
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[Main] Fix binary check

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This commit is contained in:
momo5502 2018-11-04 20:10:27 +01:00
parent 91fa299707
commit 6be5f2cd86
1 changed files with 8 additions and 4 deletions
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12
src/Main.cpp
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@ -55,9 +55,13 @@ BOOL APIENTRY DllMain(HMODULE /*hModule*/, DWORD ul_reason_for_call, LPVOID /*l
Steam::Proxy::RunMod(); Steam::Proxy::RunMod();
// Ensure we're working with our desired binary // Ensure we're working with our desired binary
char* module = reinterpret_cast<char*>(GetModuleHandle(nullptr)); char* textSegment = reinterpret_cast<char*>(0x401000);
auto hash = Utils::Cryptography::JenkinsOneAtATime::Compute(module, 0x2D6000); auto hash = Utils::Cryptography::JenkinsOneAtATime::Compute(textSegment, 0x2D531F);
if (hash != 0x1678FD9F) if (hash != 0x54684DBE
#ifdef DEBUG
&& hash != 0x8AADE716
#endif
)
{ {
return FALSE; return FALSE;
} }
@ -74,7 +78,7 @@ BOOL APIENTRY DllMain(HMODULE /*hModule*/, DWORD ul_reason_for_call, LPVOID /*l
#endif #endif
DWORD oldProtect; DWORD oldProtect;
VirtualProtect(module + 0x1000, 0x2D6000, PAGE_EXECUTE_READ, &oldProtect); // Protect the .text segment VirtualProtect(textSegment, 0x2D6000, PAGE_EXECUTE_READ, &oldProtect); // Protect the .text segment
// Install entry point hook // Install entry point hook
Utils::Hook(0x6BAC0F, Main::EntryPoint, HOOK_JUMP).install()->quick(); Utils::Hook(0x6BAC0F, Main::EntryPoint, HOOK_JUMP).install()->quick();