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CrackerNcftp.c

CrackerNcftp.c
Posted Aug 30, 2000
Site geocities.com

This decrypts the safe passwords of NcFtp

tags | cracker
SHA-256 | 1456100cf9a8fdbad6da475d328a766118e6fa62d942b9ddef1a6d3d0bb7d718

CrackerNcftp.c

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/* CrackerNcftp

Feito pelo mudZer do Cult Of The Black Hat - cultbh@bol.com.br

Descricao
-------------
Ncftp é um cliente de ftp muito prático à base.
Entre seu functionalities,it possível criar marcadores de
páginas de suas contas. Para cada marcador de páginas, a pessoa pode
registrar ftp de servidor, o login e a contra-senha que serão codificadas
(se você também decide atrás para para cima a contra-senha).
O todo é posterior no arquivo ~ / .ncftp/bookmarks. O problema vem do algoritmo
de codificar da contra-senha que é possível quebrar.


* Compile: gcc CrackerNcftp -o CrackerNcftp (-Wall)
*
* Nota: você não precisa do nome " *encoded *" * da
contra-senha codificada no arquivo * ~ / .ncftp/bookmarks

*
*/
#include <stdio.h>

void Decode(void *, const void *, size_t, int);

static const unsigned char B64DecodeTable[256] =
{
'\177', '\177', '\177', '\177', '\177', '\177', '\177', '\177', /* 000-007 */
'\177', '\177', '\177', '\177', '\177', '\177', '\177', '\177', /* 010-017 */
'\177', '\177', '\177', '\177', '\177', '\177', '\177', '\177', /* 020-027 */
'\177', '\177', '\177', '\177', '\177', '\177', '\177', '\177', /* 030-037 */
'\177', '\177', '\177', '\177', '\177', '\177', '\177', '\177', /* 040-047 */
'\177', '\177', '\177', '\76', '\177', '\177', '\177', '\77', /* 050-057 */
'\64', '\65', '\66', '\67', '\70', '\71', '\72', '\73', /* 060-067 */
'\74', '\75', '\177', '\177', '\177', '\100', '\177', '\177', /* 070-077 */
'\177', '\0', '\1', '\2', '\3', '\4', '\5', '\6', /* 100-107 */
'\7', '\10', '\11', '\12', '\13', '\14', '\15', '\16', /* 110-117 */
'\17', '\20', '\21', '\22', '\23', '\24', '\25', '\26', /* 120-127 */
'\27', '\30', '\31', '\177', '\177', '\177', '\177', '\177', /* 130-137 */
'\177', '\32', '\33', '\34', '\35', '\36', '\37', '\40', /* 140-147 */
'\41', '\42', '\43', '\44', '\45', '\46', '\47', '\50', /* 150-157 */
'\51', '\52', '\53', '\54', '\55', '\56', '\57', '\60', /* 160-167 */
'\61', '\62', '\63', '\177', '\177', '\177', '\177', '\177', /* 170-177 */
'\177', '\177', '\177', '\177', '\177', '\177', '\177', '\177', /* 200-207 */
'\177', '\177', '\177', '\177', '\177', '\177', '\177', '\177', /* 210-217 */
'\177', '\177', '\177', '\177', '\177', '\177', '\177', '\177', /* 220-227 */
'\177', '\177', '\177', '\177', '\177', '\177', '\177', '\177', /* 230-237 */
'\177', '\177', '\177', '\177', '\177', '\177', '\177', '\177', /* 240-247 */
'\177', '\177', '\177', '\177', '\177', '\177', '\177', '\177', /* 250-257 */
'\177', '\177', '\177', '\177', '\177', '\177', '\177', '\177', /* 260-267 */
'\177', '\177', '\177', '\177', '\177', '\177', '\177', '\177', /* 270-277 */
'\177', '\177', '\177', '\177', '\177', '\177', '\177', '\177', /* 300-307 */
'\177', '\177', '\177', '\177', '\177', '\177', '\177', '\177', /* 310-317 */
'\177', '\177', '\177', '\177', '\177', '\177', '\177', '\177', /* 320-327 */
'\177', '\177', '\177', '\177', '\177', '\177', '\177', '\177', /* 330-337 */
'\177', '\177', '\177', '\177', '\177', '\177', '\177', '\177', /* 340-347 */
'\177', '\177', '\177', '\177', '\177', '\177', '\177', '\177', /* 350-357 */
'\177', '\177', '\177', '\177', '\177', '\177', '\177', '\177', /* 360-367 */
'\177', '\177', '\177', '\177', '\177', '\177', '\177', '\177', /* 370-377 */
};

void
banner()
{
fprintf(stdout,"* CrackerNcftp - Feito pelo mudZer do Cult Of The Black Hat - cultbh@bol.com.br *\n");
fprintf(stdout," - www.geocities.com/cultbh - #CBH . irc.brasnet.org\n\n");
}

void
usage(const char *cmd)
{
fprintf(stderr,"Comando: %s <password codificado>\n",cmd);
}

void
main(int argc, char *argv[])
{
char pass[128];
const void *cryptpass;

banner();
if(argc<2){
usage(argv[0]);
exit(1);
}

cryptpass = (const void *)argv[1];
Decode(pass, cryptpass, strlen(cryptpass), 1);
printf("Password Codificado: %s\n",cryptpass);
printf("Password Decifrado: %s\n", pass);
}

void
Decode(void *dst0, const void *src0, size_t n, int terminate)
{
unsigned char *dst;
const unsigned char *src, *srclim;
unsigned int c0, c1, c2, c3;
unsigned int ch;

src = src0;
srclim = src + n;
dst = dst0;

while (src < srclim) {
c0 = *src++;
if (src < srclim) {
c1 = *src++;
} else {
c1 = 0;
}
if (src < srclim) {
c2 = *src++;
} else {
c2 = 0;
}
if (src < srclim) {
c3 = *src++;
} else {
c3 = 0;
}

ch = (((unsigned int) B64DecodeTable[c0]) << 2) | (((unsigned int) B64DecodeTable[c1]) >> 4);
dst[0] = (unsigned char) ch;

ch = (((unsigned int) B64DecodeTable[c1]) << 4) | (((unsigned int) B64DecodeTable[c2]) >> 2);
dst[1] = (unsigned char) ch;

ch = (((unsigned int) B64DecodeTable[c2]) << 6) | (((unsigned int) B64DecodeTable[c3]));
dst[2] = (unsigned char) ch;

dst += 3;
}
if (terminate != 0)
*dst = '\0';
}

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