/// <summary>
/// A patch can be used to change byte(s) starting at the defined address.
/// </summary>
/// <param name="addressToPatch">The address of the byte where we want our patch to start.</param>
public MemoryPatch(IMemoryAddress addressToPatch, byte[] newBytes)
{
PatchAddress = addressToPatch;
NewBytes = newBytes;
OriginalBytes = PatchAddress.Read(NewBytes.Length);
MemoryPatches.Add(this);
}
private void ValidateDbgBreakPoint()
{
IMemoryModule ntdll = Process.Modules["ntdll.dll"];
IMemoryAddress dbgBreakPointPtr = ntdll.GetProcAddress("DbgBreakPoint");
byte dbgBreakPointByte = dbgBreakPointPtr.Read <byte>();
if (dbgBreakPointByte == 0xC3)
{
MemoryPatches.Add(new MemoryPatch(dbgBreakPointPtr, new byte[] { 0xCC }));
}
}
private static void NtQueryInformationProcess(int flag, string flagName)
{
NtQueryInformationProcess ntQueryInformationProcess = new NtQueryInformationProcess();
using (IMemoryAddress result = GameSharpProcess.Instance.AllocateManagedMemory(IntPtr.Size))
{
int queryState = ntQueryInformationProcess.Call <int>(GameSharpProcess.Instance.Handle, flag, result.Address, (uint)4, null);
// STATUS_SUCCESS = 0, so if API call was successful queryState should contain 0.
if (queryState == 0)
{
if (!result.Read <bool>())
{
LoggingService.Info($"{flagName} => We're being debugged!");
}
}
}
}
/// <summary>
/// Initializes a new instance of the <see cref="MemoryScanner" /> class.
/// </summary>
/// <param name="module"><see cref="ProcessModule"/> which we are going to scan.</param>
public MemoryScanner(IMemoryModule module)
{
ModuleBase = module.MemoryAddress;
Bytes = ModuleBase.Read(module.ModuleMemorySize);
}