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Merge pull request #2804 from matrix/autodetect

Added new feature: autodetect hash-mode
This commit is contained in:
Jens Steube 2021-06-06 18:20:44 +02:00 committed by GitHub
commit 186e68289c
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GPG Key ID: 4AEE18F83AFDEB23
14 changed files with 380 additions and 18 deletions

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@ -21,6 +21,12 @@
- Added hash-mode: sha384($salt.utf16le($pass))
- Added hash-mode: sha384(utf16le($pass).$salt)
##
## Features
##
- Autodetect hash-type: performs an automatic analysis of the input hash(es), associating compatible algorithms, or executing the attack if only one compatible format is found.
##
## Bugs
##

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@ -1,2 +1,2 @@
hashcat.exe -t 32 -a 7 example0.hash ?a?a?a?a example.dict
hashcat.exe -m 0 -t 32 -a 7 example0.hash ?a?a?a?a example.dict
pause

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@ -1 +1 @@
./hashcat -t 32 -a 7 example0.hash ?a?a?a?a example.dict
./hashcat -m 0 -t 32 -a 7 example0.hash ?a?a?a?a example.dict

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@ -210,6 +210,7 @@ typedef enum status_rc
STATUS_ABORTED_RUNTIME = 11,
STATUS_ERROR = 13,
STATUS_ABORTED_FINISH = 14,
STATUS_AUTODETECT = 16,
} status_rc_t;
@ -443,6 +444,7 @@ typedef enum opts_type
OPTS_TYPE_MP_MULTI_DISABLE = (1ULL << 52), // do not multiply the kernel-accel with the multiprocessor count per device to allow more fine-tuned workload settings
OPTS_TYPE_NATIVE_THREADS = (1ULL << 53), // forces "native" thread count: CPU=1, GPU-Intel=8, GPU-AMD=64 (wavefront), GPU-NV=32 (warps)
OPTS_TYPE_POST_AMP_UTF16LE = (1ULL << 54), // run the utf8 to utf16le conversion kernel after they have been processed from amplifiers
OPTS_TYPE_AUTODETECT_DISABLE = (1ULL << 55), // skip autodetect engine
} opts_type_t;
@ -594,6 +596,7 @@ typedef enum user_options_defaults
{
ADVICE_DISABLE = false,
ATTACK_MODE = ATTACK_MODE_STRAIGHT,
AUTODETECT = false,
BENCHMARK_ALL = false,
BENCHMARK = false,
BITMAP_MAX = 18,
@ -1939,6 +1942,7 @@ typedef struct user_options
char **hc_argv;
bool attack_mode_chgd;
bool autodetect;
#ifdef WITH_BRAIN
bool brain_host_chgd;
bool brain_port_chgd;

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@ -9,7 +9,16 @@
#include <stdio.h>
#include <string.h>
typedef struct usage_sort
{
u32 hash_mode;
char *hash_name;
u32 hash_category;
} usage_sort_t;
void usage_mini_print (const char *progname);
void usage_big_print (hashcat_ctx_t *hashcat_ctx);
int sort_by_usage (const void *p1, const void *p2);
#endif // _USAGE_H

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@ -28,6 +28,7 @@
#include "event.h"
#include "hashes.h"
#include "hwmon.h"
#include "hlfmt.h"
#include "induct.h"
#include "interface.h"
#include "logfile.h"
@ -47,6 +48,7 @@
#include "user_options.h"
#include "wordlist.h"
#include "hashcat.h"
#include "usage.h"
#ifdef WITH_BRAIN
#include "brain.h"
@ -1138,6 +1140,277 @@ int hashcat_session_init (hashcat_ctx_t *hashcat_ctx, const char *install_folder
return 0;
}
bool autodetect_hashmode_test (hashcat_ctx_t *hashcat_ctx)
{
hashconfig_t *hashconfig = hashcat_ctx->hashconfig;
hashes_t *hashes = hashcat_ctx->hashes;
module_ctx_t *module_ctx = hashcat_ctx->module_ctx;
user_options_t *user_options = hashcat_ctx->user_options;
user_options_extra_t *user_options_extra = hashcat_ctx->user_options_extra;
// check for file or hash on command line
// if file, find out if binary file
if (hashconfig->opts_type & OPTS_TYPE_AUTODETECT_DISABLE) return false;
if (hashconfig->opts_type & OPTS_TYPE_BINARY_HASHFILE)
{
if (hashconfig->opts_type & OPTS_TYPE_BINARY_HASHFILE_OPTIONAL)
{
hashes->hashlist_mode = (hc_path_exist (user_options_extra->hc_hash) == true) ? HL_MODE_FILE_PLAIN : HL_MODE_ARG;
if (hashes->hashlist_mode == HL_MODE_FILE_PLAIN)
{
hashes->hashfile = user_options_extra->hc_hash;
}
}
else
{
hashes->hashlist_mode = HL_MODE_FILE_BINARY;
if (hc_path_read (user_options_extra->hc_hash) == false) return false;
hashes->hashfile = user_options_extra->hc_hash;
}
}
else
{
hashes->hashlist_mode = (hc_path_exist (user_options_extra->hc_hash) == true) ? HL_MODE_FILE_PLAIN : HL_MODE_ARG;
if (hashes->hashlist_mode == HL_MODE_FILE_PLAIN)
{
hashes->hashfile = user_options_extra->hc_hash;
}
}
/**
* load hashes, part I: find input mode
*/
const char *hashfile = hashes->hashfile;
const u32 hashlist_mode = hashes->hashlist_mode;
u32 hashlist_format = HLFMT_HASHCAT;
if (hashlist_mode == HL_MODE_FILE_PLAIN)
{
HCFILE fp;
if (hc_fopen (&fp, hashfile, "rb") == false) return false;
hashlist_format = hlfmt_detect (hashcat_ctx, &fp, 100);
hc_fclose (&fp);
}
hashes->hashlist_format = hashlist_format;
/**
* load hashes, part II: allocate required memory, set pointers
*/
void *digest = hccalloc (1, hashconfig->dgst_size);
salt_t *salt = (salt_t *) hccalloc (1, sizeof (salt_t));
void *esalt = NULL;
void *hook_salt = NULL;
if (hashconfig->esalt_size > 0)
{
esalt = hccalloc (1, hashconfig->esalt_size);
}
if (hashconfig->hook_salt_size > 0)
{
hook_salt = hccalloc (1, hashconfig->hook_salt_size);
}
hashinfo_t *hash_info = (hashinfo_t *) hcmalloc (sizeof (hashinfo_t));
hash_info->user = (user_t *) hcmalloc (sizeof (user_t));
hash_info->orighash = (char *) hcmalloc (256);
hash_info->split = (split_t *) hcmalloc (sizeof (split_t));
hash_t *hashes_buf = (hash_t *) hcmalloc (sizeof (hash_t));
hashes_buf->digest = digest;
hashes_buf->salt = salt;
hashes_buf->esalt = esalt;
hashes_buf->hook_salt = hook_salt;
hashes->hashes_buf = hashes_buf;
hashes->digests_buf = digest;
hashes->salts_buf = salt;
hashes->esalts_buf = esalt;
hashes->hook_salts_buf = hook_salt;
bool success = false;
if (hashlist_mode == HL_MODE_ARG)
{
char *input_buf = user_options_extra->hc_hash;
size_t input_len = strlen (input_buf);
char *hash_buf = NULL;
int hash_len = 0;
hlfmt_hash (hashcat_ctx, hashlist_format, input_buf, input_len, &hash_buf, &hash_len);
bool hash_fmt_error = false;
if (hash_len < 1) hash_fmt_error = true;
if (hash_buf == NULL) hash_fmt_error = true;
if (hash_fmt_error) return false;
const int parser_status = module_ctx->module_hash_decode (hashconfig, digest, salt, esalt, hook_salt, hash_info, hash_buf, hash_len);
if (parser_status == PARSER_OK) success = true;
}
else if (hashlist_mode == HL_MODE_FILE_PLAIN)
{
HCFILE fp;
if (hc_fopen (&fp, hashfile, "rb") == false) return false;
char *line_buf = (char *) hcmalloc (HCBUFSIZ_LARGE);
while (!hc_feof (&fp))
{
const size_t line_len = fgetl (&fp, line_buf, HCBUFSIZ_LARGE);
if (line_len == 0) continue;
char *hash_buf = NULL;
int hash_len = 0;
hlfmt_hash (hashcat_ctx, hashlist_format, line_buf, line_len, &hash_buf, &hash_len);
bool hash_fmt_error = false;
if (hash_len < 1) hash_fmt_error = true;
if (hash_buf == NULL) hash_fmt_error = true;
if (hash_fmt_error) continue;
int parser_status = module_ctx->module_hash_decode (hashconfig, digest, salt, esalt, hook_salt, hash_info, hash_buf, hash_len);
if (parser_status == PARSER_OK)
{
success = true;
break;
}
}
hcfree (line_buf);
hc_fclose (&fp);
}
else if (hashlist_mode == HL_MODE_FILE_BINARY)
{
char *input_buf = user_options_extra->hc_hash;
size_t input_len = strlen (input_buf);
if (module_ctx->module_hash_binary_parse != MODULE_DEFAULT)
{
const int hashes_parsed = module_ctx->module_hash_binary_parse (hashconfig, user_options, user_options_extra, hashes);
if (hashes_parsed > 0) success = true;
}
else
{
const int parser_status = module_ctx->module_hash_decode (hashconfig, digest, salt, esalt, hook_salt, hash_info, input_buf, input_len);
if (parser_status == PARSER_OK) success = true;
}
}
hcfree (digest);
hcfree (salt);
hcfree (hash_info);
hcfree (hashes_buf);
if (hashconfig->esalt_size > 0)
{
hcfree (esalt);
}
if (hashconfig->hook_salt_size > 0)
{
hcfree (hook_salt);
}
hashes->digests_buf = NULL;
hashes->salts_buf = NULL;
hashes->esalts_buf = NULL;
hashes->hook_salts_buf = NULL;
return success;
}
int autodetect_hashmodes (hashcat_ctx_t *hashcat_ctx, usage_sort_t *usage_sort_buf)
{
folder_config_t *folder_config = hashcat_ctx->folder_config;
user_options_t *user_options = hashcat_ctx->user_options;
int usage_sort_cnt = 0;
// save quiet state so we can restore later
const bool quiet_sav = user_options->quiet;
user_options->quiet = true;
char *modulefile = (char *) hcmalloc (HCBUFSIZ_TINY);
if (modulefile == NULL) return -1;
// brute force all the modes
for (int i = 0; i < MODULE_HASH_MODES_MAXIMUM; i++)
{
user_options->hash_mode = i;
// this is just to find out of that hash-mode exists or not
module_filename (folder_config, i, modulefile, HCBUFSIZ_TINY);
if (hc_path_exist (modulefile) == false) continue;
// we know it exists, so load the plugin
const int hashconfig_init_rc = hashconfig_init (hashcat_ctx);
if (hashconfig_init_rc == 0)
{
const bool test_rc = autodetect_hashmode_test (hashcat_ctx);
if (test_rc == true)
{
usage_sort_buf[usage_sort_cnt].hash_mode = hashcat_ctx->hashconfig->hash_mode;
usage_sort_buf[usage_sort_cnt].hash_name = hcstrdup (hashcat_ctx->hashconfig->hash_name);
usage_sort_buf[usage_sort_cnt].hash_category = hashcat_ctx->hashconfig->hash_category;
usage_sort_cnt++;
}
}
// clean up
hashconfig_destroy (hashcat_ctx);
}
hcfree (modulefile);
qsort (usage_sort_buf, usage_sort_cnt, sizeof (usage_sort_t), sort_by_usage);
user_options->quiet = quiet_sav;
return usage_sort_cnt;
}
int hashcat_session_execute (hashcat_ctx_t *hashcat_ctx)
{
folder_config_t *folder_config = hashcat_ctx->folder_config;
@ -1170,6 +1443,65 @@ int hashcat_session_execute (hashcat_ctx_t *hashcat_ctx)
dictstat_read (hashcat_ctx);
// autodetect
if (user_options->autodetect == true)
{
status_ctx->devices_status = STATUS_AUTODETECT;
usage_sort_t *usage_sort_buf = (usage_sort_t *) hccalloc (MODULE_HASH_MODES_MAXIMUM, sizeof (usage_sort_t));
if (usage_sort_buf == NULL) return -1;
const int modes_cnt = autodetect_hashmodes (hashcat_ctx, usage_sort_buf);
if (modes_cnt <= 0)
{
if (user_options->show == false) event_log_error (hashcat_ctx, "No hash-mode matches the structure of the input hash.");
return -1;
}
if (modes_cnt > 1)
{
event_log_info (hashcat_ctx, "The following %d hash-mode match the structure of your input hash:", modes_cnt);
event_log_info (hashcat_ctx, NULL);
event_log_info (hashcat_ctx, " # | Name | Category");
event_log_info (hashcat_ctx, " ======+=====================================================+======================================");
for (int i = 0; i < modes_cnt; i++)
{
event_log_info (hashcat_ctx, "%7u | %-51s | %s", usage_sort_buf[i].hash_mode, usage_sort_buf[i].hash_name, strhashcategory (usage_sort_buf[i].hash_category));
hcfree (usage_sort_buf[i].hash_name);
}
event_log_info (hashcat_ctx, NULL);
event_log_error (hashcat_ctx, "Please specify the hash-mode by argument (-m).");
hcfree (usage_sort_buf);
return -1;
}
// modes_cnt == 1
event_log_warning (hashcat_ctx, "You have not specified -m to select the correct hash-mode.");
event_log_warning (hashcat_ctx, "It was automatically selected by hashcat because it was the only hash-mode matching your input hash:");
event_log_warning (hashcat_ctx, "\n%u | %s | %s\n", usage_sort_buf[0].hash_mode, usage_sort_buf[0].hash_name, strhashcategory (usage_sort_buf[0].hash_category));
event_log_warning (hashcat_ctx, "Under no circumstances it is not to be understood as a guarantee this is the right hash-mode.");
event_log_warning (hashcat_ctx, "Do not report hashcat issues if you do not know exactly how the hash was extracted.");
event_log_warning (hashcat_ctx, NULL);
user_options->autodetect = false;
user_options->hash_mode = usage_sort_buf[0].hash_mode;
hcfree (usage_sort_buf[0].hash_name);
hcfree (usage_sort_buf);
}
/**
* outer loop
*/

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@ -259,7 +259,7 @@ int hashconfig_init (hashcat_ctx_t *hashcat_ctx)
{
if ((hashconfig->opts_type & OPTS_TYPE_KEYBOARD_MAPPING) == 0)
{
event_log_error (hashcat_ctx, "Parameter --keyboard-layout-mapping not valid for hash-type %u", hashconfig->hash_mode);
if (user_options->autodetect == false) event_log_error (hashcat_ctx, "Parameter --keyboard-layout-mapping not valid for hash-type %u", hashconfig->hash_mode);
return -1;
}
@ -288,7 +288,7 @@ int hashconfig_init (hashcat_ctx_t *hashcat_ctx)
}
else
{
event_log_error (hashcat_ctx, "Parameter --hex-salt not valid for hash-type %u", hashconfig->hash_mode);
if (user_options->autodetect == false) event_log_error (hashcat_ctx, "Parameter --hex-salt not valid for hash-type %u", hashconfig->hash_mode);
return -1;
}
@ -302,7 +302,7 @@ int hashconfig_init (hashcat_ctx_t *hashcat_ctx)
{
if (hashconfig->opts_type & OPTS_TYPE_SUGGEST_KG)
{
if (user_options->quiet == false)
if (user_options->quiet == false && user_options->autodetect == false)
{
event_log_warning (hashcat_ctx, "This hash-mode is known to emit multiple valid password candidates for the same hash.");
event_log_warning (hashcat_ctx, "Use --keep-guessing to prevent hashcat from shutdown after the hash has been cracked.");

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@ -20,7 +20,8 @@ static const u32 HASH_CATEGORY = HASH_CATEGORY_PLAIN;
static const char *HASH_NAME = "STDOUT";
static const u64 KERN_TYPE = 2000;
static const u32 OPTI_TYPE = 0;
static const u64 OPTS_TYPE = OPTS_TYPE_SELF_TEST_DISABLE;
static const u64 OPTS_TYPE = OPTS_TYPE_SELF_TEST_DISABLE
| OPTS_TYPE_AUTODETECT_DISABLE;
static const u32 SALT_TYPE = SALT_TYPE_NONE;
static const char *ST_PASS = "hashcat";
static const char *ST_HASH = "hashcat";

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@ -21,7 +21,8 @@ static const char *HASH_NAME = "Password Safe v2";
static const u64 KERN_TYPE = 9000;
static const u32 OPTI_TYPE = OPTI_TYPE_ZERO_BYTE;
static const u64 OPTS_TYPE = OPTS_TYPE_PT_GENERATE_LE
| OPTS_TYPE_BINARY_HASHFILE;
| OPTS_TYPE_BINARY_HASHFILE
| OPTS_TYPE_AUTODETECT_DISABLE;
static const u32 SALT_TYPE = SALT_TYPE_EMBEDDED;
static const char *ST_PASS = "hashcat";
static const char *ST_HASH = "0a3f352686e5eb5be173e668a4fff5cd5df420927e1da2d5d4052340160637e3e6a5a92841a188ed240e13b919f3d91694bd4c0acba79271e9c08a83ea5ad387cbb74d5884066a1cb5a8caa80d847079168f84823847c631dbe3a834f1bc496acfebac3bff1608bf1c857717f8f428e07b5e2cb12aaeddfa83d7dcb6d840234d08b84f8ca6c6e562af73eea13148f7902bcaf0220d3e36eeeff1d37283dc421483a2791182614ebb";

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@ -30,7 +30,8 @@ static const u32 OPTI_TYPE = OPTI_TYPE_ZERO_BYTE
| OPTI_TYPE_RAW_HASH;
static const u64 OPTS_TYPE = OPTS_TYPE_PT_GENERATE_LE
| OPTS_TYPE_PT_ADD80
| OPTS_TYPE_PT_ADDBITS14;
| OPTS_TYPE_PT_ADDBITS14
| OPTS_TYPE_AUTODETECT_DISABLE;
static const u32 SALT_TYPE = SALT_TYPE_NONE;
static const char *ST_PASS = "hashcat";
static const char *ST_HASH = "hashcat";

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@ -34,6 +34,7 @@ static const char *ST_0012 = "Running (Checkpoint Quit requested)";
static const char *ST_0013 = "Error";
static const char *ST_0014 = "Aborted (Finish)";
static const char *ST_0015 = "Running (Quit after attack requested)";
static const char *ST_0016 = "Autodetect";
static const char *ST_9999 = "Unknown! Bug!";
static const char UNITS[7] = { ' ', 'k', 'M', 'G', 'T', 'P', 'E' };
@ -292,6 +293,7 @@ const char *status_get_status_string (const hashcat_ctx_t *hashcat_ctx)
case STATUS_ABORTED_RUNTIME: return ST_0011;
case STATUS_ERROR: return ST_0013;
case STATUS_ABORTED_FINISH: return ST_0014;
case STATUS_AUTODETECT: return ST_0016;
}
return ST_9999;

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@ -68,6 +68,11 @@ void welcome_screen (hashcat_ctx_t *hashcat_ctx, const char *version_tag)
event_log_info (hashcat_ctx, "%s (%s) starting in progress-only mode...", PROGNAME, version_tag);
event_log_info (hashcat_ctx, NULL);
}
else if (user_options->hash_mode == 0 && user_options->hash_mode_chgd == false)
{
event_log_info (hashcat_ctx, "%s (%s) starting in autodetect mode...", PROGNAME, version_tag);
event_log_info (hashcat_ctx, NULL);
}
else
{
event_log_info (hashcat_ctx, "%s (%s) starting...", PROGNAME, version_tag);

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@ -26,7 +26,7 @@ static const char *const USAGE_BIG_PRE_HASHMODES[] =
"",
" Options Short / Long | Type | Description | Example",
"================================+======+======================================================+=======================",
" -m, --hash-type | Num | Hash-type, see references below | -m 1000",
" -m, --hash-type | Num | Hash-type, references below (otherwise autodetect) | -m 1000",
" -a, --attack-mode | Num | Attack-mode, see references below | -a 3",
" -V, --version | | Print version |",
" -h, --help | | Print help |",
@ -239,15 +239,7 @@ static const char *const USAGE_BIG_POST_HASHMODES[] =
NULL
};
typedef struct usage_sort
{
u32 hash_mode;
char *hash_name;
u32 hash_category;
} usage_sort_t;
static int sort_by_usage (const void *p1, const void *p2)
int sort_by_usage (const void *p1, const void *p2)
{
const usage_sort_t *u1 = (const usage_sort_t *) p1;
const usage_sort_t *u2 = (const usage_sort_t *) p2;

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@ -157,6 +157,7 @@ int user_options_init (hashcat_ctx_t *hashcat_ctx)
user_options->advice_disable = ADVICE_DISABLE;
user_options->attack_mode = ATTACK_MODE;
user_options->autodetect = AUTODETECT;
user_options->backend_devices = NULL;
user_options->backend_ignore_cuda = BACKEND_IGNORE_CUDA;
user_options->backend_ignore_opencl = BACKEND_IGNORE_OPENCL;
@ -1892,6 +1893,14 @@ void user_options_preprocess (hashcat_ctx_t *hashcat_ctx)
{
user_options->potfile_disable = true;
}
if (user_options->stdout_flag == false && user_options->benchmark == false && user_options->keyspace == false)
{
if (user_options->hash_mode == 0 && user_options->hash_mode_chgd == false)
{
user_options->autodetect = true;
}
}
}
void user_options_postprocess (hashcat_ctx_t *hashcat_ctx)