/******************************************************************************
 * File: DDcute.c                                                             *
 * Version: v1.0                                                              *
 * Date: 8 Nov 2003                                                           *
 * Comments: DDCute cracking the password of CuteFTP, tested with CuteFTP 2.0 *
 * & 3.0 pro.                                                                 *
 * You must select manually password's hash, next release, DDCute will select *
 * automatically all hash in the file. I know, the code of DDCute sux but it  *
 * is my first prog in C.                                                     *
 * Author: Decryptus <decryptus [at] coromputer.net>                          *
 * Special THX: kralor, Scurt, Mik, vn, Quintana, HPx, Jef, hAPPY-J, eagleone.*
 *                www.coromputer.net && #coromputer @ undernet                *
 ******************************************************************************/

#include <stdio.h>
#include <string.h>
#include <math.h>

int main(int argc,char *argv[]) {
        unsigned char pwd[1024];
        double numb_div=16.0,dec_div,com_div;
        int nb_ltrs;
        printf("\r\n\t\t\t [Crpt] DDCute v1.0 [Crpt] \r\n");
        printf("\t\t     Recover CuteFTP Password by Decryptus \r\n");
        printf("\t\t  www.coromputer.net && undernet #coromputer \r\n\r\n");

        if(argc!=2) {
                printf("syntax: %s <Password Crypted>\r\n",argv[0]);
                printf("help  : You must edit the file SM.dat or smdata.dat with an editor hexadecimal or Notepad\r\n");
                printf("        Select and copy password's hash.\r\n");
                return;
        }

        strncpy(pwd, argv[1],sizeof(pwd));
        printf("Password crypted  : %s\r\n",argv[1]);
        for(nb_ltrs=0;nb_ltrs<strlen(pwd);nb_ltrs++) {
                dec_div=modf(pwd[nb_ltrs]/numb_div,&com_div);

                if(pwd[nb_ltrs]<128) {
                        if(pwd[nb_ltrs]<64) {
                                if(dec_div<0.4376) pwd[nb_ltrs]=pwd[nb_ltrs]+200;
                                else pwd[nb_ltrs]=pwd[nb_ltrs]+184;
                        } else {
                                if(dec_div<0.4376) pwd[nb_ltrs]=pwd[nb_ltrs]+72;
                                else pwd[nb_ltrs]=pwd[nb_ltrs]+56;
                        }
                } else {
                        if(pwd[nb_ltrs]<192) {
                                if(dec_div<0.4376) pwd[nb_ltrs]=pwd[nb_ltrs]-56;
                                else pwd[nb_ltrs]=pwd[nb_ltrs]-72;
                        } else {
                                if(dec_div<0.4376) pwd[nb_ltrs]=pwd[nb_ltrs]-184;
                                else pwd[nb_ltrs]=pwd[nb_ltrs]-200;
                        }
                }
        }
        printf("Password decrypted: %s\r\n",pwd);
        return 0;
}