How to get Module HANDLE from func ptr in Win32?

MEMORY_BASIC_INFORMATION mbi;
HMODULE mod;
if (VirtualQuery( vfunc, &mbi, sizeof(mbi) ))
{
    mod = (HMODULE)mbi.AllocationBase;
}

The documented way of obtaining the module handle is by using GetModuleHandleEx.

HMODULE hModule = NULL;

if(GetModuleHandleEx(GET_MODULE_HANDLE_EX_FLAG_FROM_ADDRESS |
       GET_MODULE_HANDLE_EX_FLAG_UNCHANGED_REFCOUNT, // behave like GetModuleHandle
       (LPCTSTR)address, &hModule))
{
    // hModule should now refer to the module containing the target address.
}