// this is where we are intercepting all file accesses!
private UInt32 ZwReadFile_Hooked(IntPtr FileHandle, IntPtr Event, IntPtr ApcRoutine, IntPtr ApcContext, IntPtr IoStatusBlock, IntPtr Buffer, Int32 Length, IntPtr ByteOffset, IntPtr Key)
{
preprocessHook();
UInt32 result = NtDllSupport.ZwReadFile(FileHandle, Event, ApcRoutine, ApcContext, IoStatusBlock, Buffer, Length, ByteOffset, Key);
if (result == NtDllSupport.STATUS_SUCCESS)
{
int bytes_read = 0;
unsafe {
NtDllSupport.IO_STATUS_BLOCK *io_status_block = (NtDllSupport.IO_STATUS_BLOCK *)IoStatusBlock.ToPointer();
bytes_read = io_status_block->Information;
}
string buffer = AbstractHookDescription.extractBufferAsString(Buffer, bytes_read > BUFFER_LIMIT ? BUFFER_LIMIT : bytes_read);
TransferUnit transfer_unit = createTransferUnit();
transfer_unit["FileHandle"] = FileHandle.ToInt32();
transfer_unit["buffer"] = buffer;
transfer_unit["BytesRead"] = bytes_read;
makeCallBack(transfer_unit);
}
return(result);
}
// this is where we are intercepting all file accesses!
public int WSASend_Hooked(IntPtr socket_handle, IntPtr lpBuffers, Int32 dwBufferCount, ref Int32 lpNumberOfBytesSent, int flags, IntPtr lpOverlapped, IntPtr lpCompletionRoutine)
{
preprocessHook();
WS2_32Support.WSABUF[] buffers = new WS2_32Support.WSABUF[dwBufferCount];
unsafe {
WS2_32Support.WSABUF *lpbuffer = (WS2_32Support.WSABUF *)lpBuffers.ToPointer();
for (int i = 0; i < dwBufferCount; i++)
{
buffers[i] = lpbuffer[i];
}
}
string z = "";
for (int i = 0; i < dwBufferCount; i++)
{
z += AbstractHookDescription.extractBufferAsString(buffers[i].buf, (int)(buffers[i].len < BUFFER_SAMPLE_LENGTH ? buffers[i].len : buffers[i].len));
}
z.Replace("\r\n", " ");
//Console.WriteLine(z);
Console.WriteLine("ws2_32.WSASend intercepted");
Func <int, string, string> gen = null;
gen = (num, symb) => num == 0 ? "" : gen(num - 1, symb) + symb;
//Console.WriteLine(gen(10, "<") + gen(10, ">"));
TransferUnit transfer_unit = createTransferUnit();
transfer_unit[Color.Handle] = socket_handle.ToInt32();
transfer_unit[Color.Buffer] = z;
//call original API
int result = WS2_32Support.WSASend(socket_handle, lpBuffers, dwBufferCount, ref lpNumberOfBytesSent, flags, lpOverlapped, lpCompletionRoutine);
if (result != WS2_32Support.SOCKET_ERROR)
{
makeCallBack(transfer_unit);
}
return(result);
}
public ApiPlace(AbstractHookDescription hd) : this(hd.api_full_name)
{
}