| 1 |
#ifdef HAVE_CONFIG_H |
| 2 |
#include "config.h" |
| 3 |
#endif |
| 4 |
|
| 5 |
#include <stdio.h> |
| 6 |
#include <stdlib.h> |
| 7 |
#ifdef HAVE_STDBOOL_H |
| 8 |
#include <stdbool.h> |
| 9 |
#else |
| 10 |
typedef enum { FALSE = 0, TRUE = 1 } bool; |
| 11 |
#endif |
| 12 |
#ifdef HAVE_GETOPT_H |
| 13 |
#include <getopt.h> |
| 14 |
#else |
| 15 |
#include "getopt.h" |
| 16 |
#endif |
| 17 |
#ifdef HAVE_GETTIMEOFDAY |
| 18 |
#ifdef HAVE_UNISTD_H |
| 19 |
#include <unistd.h> |
| 20 |
#endif |
| 21 |
#ifdef HAVE_SYS_TIME_H |
| 22 |
#include <sys/time.h> |
| 23 |
#endif |
| 24 |
#endif |
| 25 |
|
| 26 |
#include <string.h> |
| 27 |
|
| 28 |
#ifdef USE_UNIX_REDIRECTION |
| 29 |
#define DEVNULL ">/dev/null 2>&1" |
| 30 |
#else |
| 31 |
#define DEVNULL ">NUL 2>&1" |
| 32 |
#endif |
| 33 |
|
| 34 |
#include "crack.h" |
| 35 |
|
| 36 |
int use_unzip; |
| 37 |
|
| 38 |
static method *crack_method = methods; |
| 39 |
static int method_number = -1; |
| 40 |
static int min_length = -1; |
| 41 |
static int max_length = -1; |
| 42 |
static int residuent = 0; |
| 43 |
static int modul = 1; |
| 44 |
|
| 45 |
static FILE *dict_file; |
| 46 |
|
| 47 |
int REGPARAM |
| 48 |
check_unzip (const char *pw) |
| 49 |
{ |
| 50 |
char buff[1024]; |
| 51 |
int status; |
| 52 |
|
| 53 |
sprintf (buff, "unzip -qqtP \"%s\" %s " DEVNULL, pw, file_path[0]); |
| 54 |
status = system (buff); |
| 55 |
|
| 56 |
#undef REDIR |
| 57 |
|
| 58 |
if (status == EXIT_SUCCESS) |
| 59 |
{ |
| 60 |
printf("\n\nPASSWORD FOUND!!!!: pw == %s\n", pw); |
| 61 |
exit (EXIT_SUCCESS); |
| 62 |
} |
| 63 |
|
| 64 |
return !status; |
| 65 |
} |
| 66 |
|
| 67 |
/* misc. callbacks. */ |
| 68 |
|
| 69 |
static int |
| 70 |
false_callback (const char *pw, const char *info) |
| 71 |
{ |
| 72 |
(void) pw; |
| 73 |
(void) info; /* suppress warning */ |
| 74 |
return 0; |
| 75 |
} |
| 76 |
|
| 77 |
static int |
| 78 |
true_callback (const char *pw, const char *info) |
| 79 |
{ |
| 80 |
(void) pw; |
| 81 |
(void) info; /* suppress warning */ |
| 82 |
return 1; |
| 83 |
} |
| 84 |
|
| 85 |
static int |
| 86 |
print_callback (const char *pw, const char *info) |
| 87 |
{ |
| 88 |
if (!use_unzip || check_unzip (pw)) |
| 89 |
{ |
| 90 |
printf ("possible pw found: %s (%s)\n", pw, info ? info : ""); |
| 91 |
/*exit(0); */ |
| 92 |
} |
| 93 |
|
| 94 |
return 0; |
| 95 |
} |
| 96 |
|
| 97 |
static int |
| 98 |
brute_force_gen (void) |
| 99 |
{ |
| 100 |
u8 *p = pw_end; |
| 101 |
|
| 102 |
do |
| 103 |
{ |
| 104 |
u8 o = *--p; |
| 105 |
*p = bf_next[o]; |
| 106 |
if (o != bf_last) |
| 107 |
return pw_end - p; |
| 108 |
} |
| 109 |
while (p > pw); |
| 110 |
|
| 111 |
if (pw_end - pw < max_length) |
| 112 |
{ |
| 113 |
p = ++pw_end; |
| 114 |
*p = 0; |
| 115 |
|
| 116 |
while (p > pw) |
| 117 |
*--p = bf_next[255]; |
| 118 |
|
| 119 |
return -1; |
| 120 |
} |
| 121 |
else |
| 122 |
return 0; |
| 123 |
} |
| 124 |
|
| 125 |
static int |
| 126 |
dictionary_gen (void) |
| 127 |
{ |
| 128 |
/* should optimize this, comparing prefixes would be a net win. |
| 129 |
* however, not using fgets but something better might be an |
| 130 |
* even higher win :( |
| 131 |
*/ |
| 132 |
if (fgets (pw, MAX_PW+1, dict_file)) |
| 133 |
{ |
| 134 |
pw[strlen (pw) - 1] = 0; |
| 135 |
return -1; |
| 136 |
} |
| 137 |
else |
| 138 |
{ |
| 139 |
if (!feof (dict_file)) |
| 140 |
perror ("dictionary_read_next_password"); |
| 141 |
|
| 142 |
return 0; |
| 143 |
} |
| 144 |
} |
| 145 |
|
| 146 |
static int |
| 147 |
validate_gen (void) |
| 148 |
{ |
| 149 |
return 0; |
| 150 |
} |
| 151 |
|
| 152 |
static void |
| 153 |
validate (void) |
| 154 |
{ |
| 155 |
u8 header[HEADER_SIZE + 1] = |
| 156 |
{0xf4, 0x28, 0xd6, 0xee, 0xd7, 0xd2, |
| 157 |
0x3c, 0x1a, 0x20, 0xab, 0xdf, 0x73, |
| 158 |
0xd6, 0xba, 0}; /* PW: "Martha" */ |
| 159 |
strcpy ((char *) files, (char *) header); /* yeah, dirty... */ |
| 160 |
file_count = 1; |
| 161 |
|
| 162 |
if (crack_method->desc[0] == 'z') |
| 163 |
{ |
| 164 |
crack_method->init_crack_pw (); |
| 165 |
|
| 166 |
strcpy (pw, "Martha"); |
| 167 |
if (crack_method->crack_pw (validate_gen, true_callback)) |
| 168 |
printf ("validate ok (%s == Martha)\n", pw); |
| 169 |
else |
| 170 |
printf ("validation error (%s != Martha)\n", pw); |
| 171 |
} |
| 172 |
else |
| 173 |
printf ("validate only works for zip methods, use --method to select one.\n"); |
| 174 |
} |
| 175 |
|
| 176 |
static void |
| 177 |
parse_charset (char *cs) |
| 178 |
{ |
| 179 |
u8 chars[800]; |
| 180 |
u8 map[256]; |
| 181 |
u8 *p = chars; |
| 182 |
|
| 183 |
while (*cs) |
| 184 |
switch (*cs++) |
| 185 |
{ |
| 186 |
case 'a': |
| 187 |
strcpy ((char *) p, "abcdefghijklmnopqrstuvwxyz"); |
| 188 |
p += 26; |
| 189 |
break; |
| 190 |
|
| 191 |
case 'A': |
| 192 |
strcpy ((char *) p, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"); |
| 193 |
p += 26; |
| 194 |
break; |
| 195 |
|
| 196 |
case '1': |
| 197 |
strcpy ((char *) p, "0123456789"); |
| 198 |
p += 10; |
| 199 |
break; |
| 200 |
|
| 201 |
case '!': |
| 202 |
strcpy ((char *) p, "!:$%&/()=?{[]}+-*~#"); |
| 203 |
p += 18; |
| 204 |
break; |
| 205 |
|
| 206 |
case ':': |
| 207 |
while (*cs) |
| 208 |
*p++ = *cs++; |
| 209 |
break; |
| 210 |
|
| 211 |
default: |
| 212 |
fprintf (stderr, "unknown charset specifier, only 'aA1!:' recognized\n"); |
| 213 |
exit (1); |
| 214 |
} |
| 215 |
|
| 216 |
*p = 0; |
| 217 |
|
| 218 |
p = chars; |
| 219 |
bf_last = *p++; |
| 220 |
memset (bf_next, bf_last, sizeof bf_next); |
| 221 |
memset (map, 0, 256); |
| 222 |
|
| 223 |
for (; *p; p++) |
| 224 |
if (!map[*p]) |
| 225 |
{ |
| 226 |
map[*p] = 1; |
| 227 |
bf_next[bf_last] = *p; |
| 228 |
bf_last = *p; |
| 229 |
} |
| 230 |
|
| 231 |
bf_next[bf_last] = chars[0]; |
| 232 |
|
| 233 |
/* { int i; for (i = 0; i < 255; i++) printf ("bf_next [%3d] = %3d\n", i, bf_next[i]);}; */ |
| 234 |
} |
| 235 |
|
| 236 |
static int benchmark_count; |
| 237 |
|
| 238 |
static int |
| 239 |
benchmark_gen (void) |
| 240 |
{ |
| 241 |
if (!--benchmark_count) |
| 242 |
return 0; |
| 243 |
|
| 244 |
return brute_force_gen (); |
| 245 |
} |
| 246 |
|
| 247 |
static void |
| 248 |
benchmark (void) |
| 249 |
{ |
| 250 |
#ifdef HAVE_GETTIMEOFDAY |
| 251 |
int i; |
| 252 |
long j, k; |
| 253 |
struct timeval tv1, tv2; |
| 254 |
|
| 255 |
do |
| 256 |
{ |
| 257 |
for (i = 0; i < HEADER_SIZE * 3; i++) |
| 258 |
files[i] = i ^ (i * 3); |
| 259 |
|
| 260 |
file_count = 3; |
| 261 |
strcpy (pw, "abcdefghij"); |
| 262 |
parse_charset ("a"); |
| 263 |
benchmark_count = BENCHMARK_LOOPS; |
| 264 |
|
| 265 |
verbosity = 0; |
| 266 |
|
| 267 |
printf ("%c%s: ", |
| 268 |
(crack_method - methods == default_method) ? '*' : ' ', |
| 269 |
crack_method->desc); |
| 270 |
|
| 271 |
if (strncmp ("zip", crack_method->desc, 3)) |
| 272 |
printf ("(skipped)"); |
| 273 |
else |
| 274 |
{ |
| 275 |
fflush (stdout); |
| 276 |
|
| 277 |
crack_method->init_crack_pw (); |
| 278 |
gettimeofday (&tv1, 0); |
| 279 |
crack_method->crack_pw (benchmark_gen, false_callback); |
| 280 |
gettimeofday (&tv2, 0); |
| 281 |
tv2.tv_sec -= tv1.tv_sec; |
| 282 |
tv2.tv_usec -= tv1.tv_usec; |
| 283 |
|
| 284 |
j = tv2.tv_sec * 1000000 + tv2.tv_usec; |
| 285 |
k = BENCHMARK_LOOPS; |
| 286 |
|
| 287 |
printf ("cracks/s = "); |
| 288 |
|
| 289 |
for (i = 7; i--;) |
| 290 |
printf ("%ld", k / j), k = (k - k / j * j) * 10; |
| 291 |
} |
| 292 |
|
| 293 |
printf ("\n"); |
| 294 |
crack_method++; |
| 295 |
} |
| 296 |
while (method_number < 0 && crack_method->desc); |
| 297 |
#else |
| 298 |
fprintf (stderr, "This executable was compiled without support for benchmarking\n"); |
| 299 |
exit (1); |
| 300 |
#endif |
| 301 |
} |
| 302 |
|
| 303 |
static void |
| 304 |
usage (int ec) |
| 305 |
{ |
| 306 |
printf ("\n" |
| 307 |
PACKAGE " version " VERSION ", a fast/free zip password cracker\n" |
| 308 |
"written by Marc Lehmann <pcg@goof.com> You can find more info on\n" |
| 309 |
"http://www.goof.com/pcg/marc/\n" |
| 310 |
"\n" |
| 311 |
"USAGE: fcrackzip\n" |
| 312 |
" [-b|--brute-force] use brute force algorithm\n" |
| 313 |
" [-D|--dictionary] use a dictionary\n" |
| 314 |
" [-B|--benchmark] execute a small benchmark\n" |
| 315 |
" [-c|--charset characterset] use characters from charset\n" |
| 316 |
" [-h|--help] show this message\n" |
| 317 |
" [--version] show the version of this program\n" |
| 318 |
" [-V|--validate] sanity-check the algortihm\n" |
| 319 |
" [-v|--verbose] be more verbose\n" |
| 320 |
" [-p|--init-password string] use string as initial password/file\n" |
| 321 |
" [-l|--length min-max] check password with length min to max\n" |
| 322 |
" [-u|--use-unzip] use unzip to weed out wrong passwords\n" |
| 323 |
" [-m|--method num] use method number \"num\" (see below)\n" |
| 324 |
" [-2|--modulo r/m] only calculcate 1/m of the password\n" |
| 325 |
" file... the zipfiles to crack\n" |
| 326 |
"\n" |
| 327 |
); |
| 328 |
|
| 329 |
printf ("methods compiled in (* = default):\n\n"); |
| 330 |
for (crack_method = methods; crack_method->desc; crack_method++) |
| 331 |
printf ("%c%d: %s\n", |
| 332 |
(crack_method - methods == default_method) ? '*' : ' ', |
| 333 |
crack_method - methods, |
| 334 |
crack_method->desc); |
| 335 |
|
| 336 |
printf ("\n"); |
| 337 |
exit (ec); |
| 338 |
} |
| 339 |
|
| 340 |
static struct option options[] = |
| 341 |
{ |
| 342 |
{"version", no_argument, 0, 'R'}, |
| 343 |
{"brute-force", no_argument, 0, 'b'}, |
| 344 |
{"dictionary", no_argument, 0, 'D'}, |
| 345 |
{"benchmark", no_argument, 0, 'B'}, |
| 346 |
{"charset", required_argument, 0, 'c'}, |
| 347 |
{"help", no_argument, 0, 'h'}, |
| 348 |
{"validate", no_argument, 0, 'V'}, |
| 349 |
{"verbose", no_argument, 0, 'v'}, |
| 350 |
{"init-password", required_argument, 0, 'p'}, |
| 351 |
{"length", required_argument, 0, 'l'}, |
| 352 |
{"use-unzip", no_argument, 0, 'u'}, |
| 353 |
{"method", required_argument, 0, 'm'}, |
| 354 |
{"modulo", required_argument, 0, 2}, |
| 355 |
{0, 0, 0, 0}, |
| 356 |
}; |
| 357 |
|
| 358 |
int |
| 359 |
main (int argc, char *argv[]) |
| 360 |
{ |
| 361 |
int c; |
| 362 |
int option_index = 0; |
| 363 |
char *charset = "aA1!"; |
| 364 |
enum { m_benchmark, m_brute_force, m_dictionary } mode = m_brute_force; |
| 365 |
|
| 366 |
while ((c = getopt_long (argc, argv, "DbBc:hVvp:l:um:2:", options, &option_index)) != -1) |
| 367 |
switch (c) |
| 368 |
{ |
| 369 |
case 'b': |
| 370 |
mode = m_brute_force; |
| 371 |
break; |
| 372 |
|
| 373 |
case 'D': |
| 374 |
mode = m_dictionary; |
| 375 |
break; |
| 376 |
|
| 377 |
case 'p': |
| 378 |
strcpy (pw, optarg); |
| 379 |
break; |
| 380 |
|
| 381 |
case 'l': |
| 382 |
pw[0] = 0; |
| 383 |
switch (sscanf (optarg, "%d-%d", &min_length, &max_length)) |
| 384 |
{ |
| 385 |
default: |
| 386 |
fprintf (stderr, "'%s' is an incorrect length specification\n", optarg); |
| 387 |
exit (1); |
| 388 |
case 1: |
| 389 |
max_length = min_length; |
| 390 |
case 2: |
| 391 |
; |
| 392 |
} |
| 393 |
break; |
| 394 |
|
| 395 |
case 2: |
| 396 |
if (sscanf (optarg, "%d/%d", &residuent, &modul) != 2) |
| 397 |
fprintf (stderr, "malformed --modulo option, expected 'residuent/modul'\n"), exit (1); |
| 398 |
|
| 399 |
if (residuent < 0 || modul <= 0) |
| 400 |
fprintf (stderr, "residuent and modul must be positive\n"), exit (1); |
| 401 |
|
| 402 |
if (residuent >= modul) |
| 403 |
fprintf (stderr, "residuent must be less than modul\n"), exit (1); |
| 404 |
|
| 405 |
break; |
| 406 |
|
| 407 |
case 'B': |
| 408 |
mode = m_benchmark; |
| 409 |
benchmark (); |
| 410 |
exit (0); |
| 411 |
|
| 412 |
case 'v': |
| 413 |
verbosity++; |
| 414 |
break; |
| 415 |
|
| 416 |
case 'm': |
| 417 |
{ |
| 418 |
for (method_number = 0; methods[method_number].desc; method_number++) |
| 419 |
if (!strncmp (methods[method_number].desc, optarg, strlen (optarg))) |
| 420 |
break; |
| 421 |
|
| 422 |
if (!methods[method_number].desc) |
| 423 |
method_number = atoi (optarg); |
| 424 |
|
| 425 |
crack_method = methods + method_number; |
| 426 |
} |
| 427 |
break; |
| 428 |
|
| 429 |
case 'V': |
| 430 |
validate (); |
| 431 |
exit (0); |
| 432 |
|
| 433 |
case 'c': |
| 434 |
charset = optarg; |
| 435 |
break; |
| 436 |
|
| 437 |
case 'u': |
| 438 |
use_unzip = 1; |
| 439 |
break; |
| 440 |
|
| 441 |
case 'h': |
| 442 |
usage (0); |
| 443 |
case 'R': |
| 444 |
printf (PACKAGE " version " VERSION "\n"); |
| 445 |
exit (0); |
| 446 |
|
| 447 |
case ':': |
| 448 |
fprintf (stderr, "required argument missing\n"); |
| 449 |
exit (1); |
| 450 |
|
| 451 |
case '?': |
| 452 |
fprintf (stderr, "unknown option\n"); |
| 453 |
exit (1); |
| 454 |
|
| 455 |
default: |
| 456 |
usage (1); |
| 457 |
} |
| 458 |
|
| 459 |
if (method_number < 0) |
| 460 |
{ |
| 461 |
method_number = default_method; |
| 462 |
crack_method = methods + default_method; |
| 463 |
} |
| 464 |
|
| 465 |
if (optind >= argc) |
| 466 |
{ |
| 467 |
fprintf (stderr, "you have to specify one or more zip files (try --help)\n"); |
| 468 |
exit (1); |
| 469 |
} |
| 470 |
|
| 471 |
for (; optind < argc; optind++) |
| 472 |
if (file_count < MAX_FILES) |
| 473 |
crack_method->load_file (argv[optind]); |
| 474 |
else if (verbosity) |
| 475 |
printf ("%d file maximum reached, ignoring '%s'\n", MAX_FILES, argv[optind]); |
| 476 |
|
| 477 |
if (file_count == 0) |
| 478 |
{ |
| 479 |
fprintf (stderr, "no usable files found\n"); |
| 480 |
exit (1); |
| 481 |
} |
| 482 |
|
| 483 |
crack_method->init_crack_pw (); |
| 484 |
|
| 485 |
switch (mode) |
| 486 |
{ |
| 487 |
case m_brute_force: |
| 488 |
parse_charset (charset); |
| 489 |
|
| 490 |
if (!pw[0]) |
| 491 |
{ |
| 492 |
if (min_length < 0) |
| 493 |
{ |
| 494 |
fprintf (stderr, "you have to specify either --init-password or --length with --brute-force\n"); |
| 495 |
exit (1); |
| 496 |
} |
| 497 |
else |
| 498 |
{ |
| 499 |
u8 *p = pw; |
| 500 |
while (p < pw + min_length) |
| 501 |
*p++ = bf_next[255]; |
| 502 |
|
| 503 |
*p++ = 0; |
| 504 |
} |
| 505 |
} |
| 506 |
|
| 507 |
if (residuent) |
| 508 |
{ |
| 509 |
int xmodul = modul; |
| 510 |
modul = residuent; |
| 511 |
pw_end = pw + strlen (pw); |
| 512 |
brute_force_gen (); |
| 513 |
printf ("%s\n", pw); |
| 514 |
modul = xmodul; |
| 515 |
printf ("WARNING: residuent mode NOT supported YET!\n"); |
| 516 |
} |
| 517 |
|
| 518 |
crack_method->crack_pw (brute_force_gen, print_callback); |
| 519 |
break; |
| 520 |
|
| 521 |
case m_dictionary: |
| 522 |
if (!pw[0]) |
| 523 |
{ |
| 524 |
fprintf (stderr, "you have to specify a file to read passwords from using the -p switch\n"); |
| 525 |
exit (1); |
| 526 |
} |
| 527 |
|
| 528 |
if (!(dict_file = fopen (pw, "r"))) |
| 529 |
{ |
| 530 |
perror (pw); |
| 531 |
exit (1); |
| 532 |
} |
| 533 |
else |
| 534 |
{ |
| 535 |
*(pw_end = pw) = 0; |
| 536 |
dictionary_gen (); /* fetch first password */ |
| 537 |
crack_method->crack_pw (dictionary_gen, print_callback); |
| 538 |
|
| 539 |
fclose (dict_file); |
| 540 |
} |
| 541 |
|
| 542 |
break; |
| 543 |
|
| 544 |
default: |
| 545 |
fprintf (stderr, "specified mode not supported in this version\n"); |
| 546 |
exit (1); |
| 547 |
} |
| 548 |
|
| 549 |
return 0; |
| 550 |
} |
