1 /**
2 * Author......: See docs/credits.txt
3 * License.....: MIT
4 */
5
6 #include "common.h"
7 #include "types.h"
8 #include "modules.h"
9 #include "bitops.h"
10 #include "convert.h"
11 #include "shared.h"
12
13 static const u32 ATTACK_EXEC = ATTACK_EXEC_OUTSIDE_KERNEL;
14 static const u32 DGST_POS0 = 0;
15 static const u32 DGST_POS1 = 1;
16 static const u32 DGST_POS2 = 2;
17 static const u32 DGST_POS3 = 3;
18 static const u32 DGST_SIZE = DGST_SIZE_4_4;
19 static const u32 HASH_CATEGORY = HASH_CATEGORY_OS;
20 static const char *HASH_NAME = "Domain Cached Credentials 2 (DCC2), MS Cache 2";
21 static const u64 KERN_TYPE = 2100;
22 static const u32 OPTI_TYPE = OPTI_TYPE_ZERO_BYTE
23 | OPTI_TYPE_SLOW_HASH_SIMD_LOOP;
24 static const u64 OPTS_TYPE = OPTS_TYPE_PT_GENERATE_LE
25 | OPTS_TYPE_ST_LOWER;
26 static const u32 SALT_TYPE = SALT_TYPE_EMBEDDED;
27 static const char *ST_PASS = "hashcat";
28 static const char *ST_HASH = "$DCC2$10240#6848#e2829c8af2232fa53797e2f0e35e4626";
29
module_attack_exec(MAYBE_UNUSED const hashconfig_t * hashconfig,MAYBE_UNUSED const user_options_t * user_options,MAYBE_UNUSED const user_options_extra_t * user_options_extra)30 u32 module_attack_exec (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra) { return ATTACK_EXEC; }
module_dgst_pos0(MAYBE_UNUSED const hashconfig_t * hashconfig,MAYBE_UNUSED const user_options_t * user_options,MAYBE_UNUSED const user_options_extra_t * user_options_extra)31 u32 module_dgst_pos0 (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra) { return DGST_POS0; }
module_dgst_pos1(MAYBE_UNUSED const hashconfig_t * hashconfig,MAYBE_UNUSED const user_options_t * user_options,MAYBE_UNUSED const user_options_extra_t * user_options_extra)32 u32 module_dgst_pos1 (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra) { return DGST_POS1; }
module_dgst_pos2(MAYBE_UNUSED const hashconfig_t * hashconfig,MAYBE_UNUSED const user_options_t * user_options,MAYBE_UNUSED const user_options_extra_t * user_options_extra)33 u32 module_dgst_pos2 (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra) { return DGST_POS2; }
module_dgst_pos3(MAYBE_UNUSED const hashconfig_t * hashconfig,MAYBE_UNUSED const user_options_t * user_options,MAYBE_UNUSED const user_options_extra_t * user_options_extra)34 u32 module_dgst_pos3 (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra) { return DGST_POS3; }
module_dgst_size(MAYBE_UNUSED const hashconfig_t * hashconfig,MAYBE_UNUSED const user_options_t * user_options,MAYBE_UNUSED const user_options_extra_t * user_options_extra)35 u32 module_dgst_size (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra) { return DGST_SIZE; }
module_hash_category(MAYBE_UNUSED const hashconfig_t * hashconfig,MAYBE_UNUSED const user_options_t * user_options,MAYBE_UNUSED const user_options_extra_t * user_options_extra)36 u32 module_hash_category (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra) { return HASH_CATEGORY; }
module_hash_name(MAYBE_UNUSED const hashconfig_t * hashconfig,MAYBE_UNUSED const user_options_t * user_options,MAYBE_UNUSED const user_options_extra_t * user_options_extra)37 const char *module_hash_name (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra) { return HASH_NAME; }
module_kern_type(MAYBE_UNUSED const hashconfig_t * hashconfig,MAYBE_UNUSED const user_options_t * user_options,MAYBE_UNUSED const user_options_extra_t * user_options_extra)38 u64 module_kern_type (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra) { return KERN_TYPE; }
module_opti_type(MAYBE_UNUSED const hashconfig_t * hashconfig,MAYBE_UNUSED const user_options_t * user_options,MAYBE_UNUSED const user_options_extra_t * user_options_extra)39 u32 module_opti_type (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra) { return OPTI_TYPE; }
module_opts_type(MAYBE_UNUSED const hashconfig_t * hashconfig,MAYBE_UNUSED const user_options_t * user_options,MAYBE_UNUSED const user_options_extra_t * user_options_extra)40 u64 module_opts_type (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra) { return OPTS_TYPE; }
module_salt_type(MAYBE_UNUSED const hashconfig_t * hashconfig,MAYBE_UNUSED const user_options_t * user_options,MAYBE_UNUSED const user_options_extra_t * user_options_extra)41 u32 module_salt_type (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra) { return SALT_TYPE; }
module_st_hash(MAYBE_UNUSED const hashconfig_t * hashconfig,MAYBE_UNUSED const user_options_t * user_options,MAYBE_UNUSED const user_options_extra_t * user_options_extra)42 const char *module_st_hash (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra) { return ST_HASH; }
module_st_pass(MAYBE_UNUSED const hashconfig_t * hashconfig,MAYBE_UNUSED const user_options_t * user_options,MAYBE_UNUSED const user_options_extra_t * user_options_extra)43 const char *module_st_pass (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra) { return ST_PASS; }
44
45 typedef struct dcc2_tmp
46 {
47 u32 ipad[5];
48 u32 opad[5];
49
50 u32 dgst[5];
51 u32 out[4];
52
53 } dcc2_tmp_t;
54
55 static const char *SIGNATURE_DCC2 = "$DCC2$";
56
module_tmp_size(MAYBE_UNUSED const hashconfig_t * hashconfig,MAYBE_UNUSED const user_options_t * user_options,MAYBE_UNUSED const user_options_extra_t * user_options_extra)57 u64 module_tmp_size (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra)
58 {
59 const u64 tmp_size = (const u64) sizeof (dcc2_tmp_t);
60
61 return tmp_size;
62 }
63
module_pw_max(MAYBE_UNUSED const hashconfig_t * hashconfig,MAYBE_UNUSED const user_options_t * user_options,MAYBE_UNUSED const user_options_extra_t * user_options_extra)64 u32 module_pw_max (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra)
65 {
66 // this overrides the reductions of PW_MAX in case optimized kernel is selected
67 // IOW, even in optimized kernel mode it support length 256
68
69 const u32 pw_max = PW_MAX;
70
71 return pw_max;
72 }
73
module_hash_decode(MAYBE_UNUSED const hashconfig_t * hashconfig,MAYBE_UNUSED void * digest_buf,MAYBE_UNUSED salt_t * salt,MAYBE_UNUSED void * esalt_buf,MAYBE_UNUSED void * hook_salt_buf,MAYBE_UNUSED hashinfo_t * hash_info,const char * line_buf,MAYBE_UNUSED const int line_len)74 int module_hash_decode (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED void *digest_buf, MAYBE_UNUSED salt_t *salt, MAYBE_UNUSED void *esalt_buf, MAYBE_UNUSED void *hook_salt_buf, MAYBE_UNUSED hashinfo_t *hash_info, const char *line_buf, MAYBE_UNUSED const int line_len)
75 {
76 u32 *digest = (u32 *) digest_buf;
77
78 token_t token;
79
80 token.token_cnt = 4;
81
82 token.signatures_cnt = 1;
83 token.signatures_buf[0] = SIGNATURE_DCC2;
84
85 token.len[0] = 6;
86 token.attr[0] = TOKEN_ATTR_FIXED_LENGTH
87 | TOKEN_ATTR_VERIFY_SIGNATURE;
88
89 token.len_min[1] = 1;
90 token.len_max[1] = 6;
91 token.sep[1] = '#';
92 token.attr[1] = TOKEN_ATTR_VERIFY_LENGTH
93 | TOKEN_ATTR_VERIFY_DIGIT;
94
95 token.len_min[2] = SALT_MIN;
96 token.len_max[2] = SALT_MAX;
97 token.sep[2] = '#';
98 token.attr[2] = TOKEN_ATTR_VERIFY_LENGTH
99 | TOKEN_ATTR_SEPARATOR_FARTHEST;
100
101 token.len_min[3] = 32;
102 token.len_max[3] = 32;
103 token.attr[3] = TOKEN_ATTR_VERIFY_LENGTH
104 | TOKEN_ATTR_VERIFY_HEX;
105
106 const int rc_tokenizer = input_tokenizer ((const u8 *) line_buf, line_len, &token);
107
108 if (rc_tokenizer != PARSER_OK) return (rc_tokenizer);
109
110 const u8 *hash_pos = token.buf[3];
111
112 digest[0] = hex_to_u32 (hash_pos + 0);
113 digest[1] = hex_to_u32 (hash_pos + 8);
114 digest[2] = hex_to_u32 (hash_pos + 16);
115 digest[3] = hex_to_u32 (hash_pos + 24);
116
117 digest[0] = byte_swap_32 (digest[0]);
118 digest[1] = byte_swap_32 (digest[1]);
119 digest[2] = byte_swap_32 (digest[2]);
120 digest[3] = byte_swap_32 (digest[3]);
121
122 const u8 *salt_pos = token.buf[2];
123 const int salt_len = token.len[2];
124
125 const bool parse_rc = generic_salt_decode (hashconfig, salt_pos, salt_len, (u8 *) salt->salt_buf, (int *) &salt->salt_len);
126
127 if (parse_rc == false) return (PARSER_SALT_LENGTH);
128
129 const u8 *iter_pos = token.buf[1];
130
131 u32 iter = hc_strtoul ((const char *) iter_pos, NULL, 10);
132
133 salt->salt_iter = iter - 1;
134
135 return (PARSER_OK);
136 }
137
module_hash_encode(MAYBE_UNUSED const hashconfig_t * hashconfig,MAYBE_UNUSED const void * digest_buf,MAYBE_UNUSED const salt_t * salt,MAYBE_UNUSED const void * esalt_buf,MAYBE_UNUSED const void * hook_salt_buf,MAYBE_UNUSED const hashinfo_t * hash_info,char * line_buf,MAYBE_UNUSED const int line_size)138 int module_hash_encode (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const void *digest_buf, MAYBE_UNUSED const salt_t *salt, MAYBE_UNUSED const void *esalt_buf, MAYBE_UNUSED const void *hook_salt_buf, MAYBE_UNUSED const hashinfo_t *hash_info, char *line_buf, MAYBE_UNUSED const int line_size)
139 {
140 const u32 *digest = (const u32 *) digest_buf;
141
142 int line_len = 0;
143
144 line_len += snprintf (line_buf + line_len, line_size - line_len, "%s%u#", SIGNATURE_DCC2, salt->salt_iter + 1);
145
146 line_len += generic_salt_encode (hashconfig, (const u8 *) salt->salt_buf, (const int) salt->salt_len, (u8 *) line_buf + line_len);
147
148 line_len += snprintf (line_buf + line_len, line_size - line_len, "#%08x%08x%08x%08x",
149 digest[0],
150 digest[1],
151 digest[2],
152 digest[3]);
153
154 return line_len;
155 }
156
module_init(module_ctx_t * module_ctx)157 void module_init (module_ctx_t *module_ctx)
158 {
159 module_ctx->module_context_size = MODULE_CONTEXT_SIZE_CURRENT;
160 module_ctx->module_interface_version = MODULE_INTERFACE_VERSION_CURRENT;
161
162 module_ctx->module_attack_exec = module_attack_exec;
163 module_ctx->module_benchmark_esalt = MODULE_DEFAULT;
164 module_ctx->module_benchmark_hook_salt = MODULE_DEFAULT;
165 module_ctx->module_benchmark_mask = MODULE_DEFAULT;
166 module_ctx->module_benchmark_salt = MODULE_DEFAULT;
167 module_ctx->module_build_plain_postprocess = MODULE_DEFAULT;
168 module_ctx->module_deep_comp_kernel = MODULE_DEFAULT;
169 module_ctx->module_deprecated_notice = MODULE_DEFAULT;
170 module_ctx->module_dgst_pos0 = module_dgst_pos0;
171 module_ctx->module_dgst_pos1 = module_dgst_pos1;
172 module_ctx->module_dgst_pos2 = module_dgst_pos2;
173 module_ctx->module_dgst_pos3 = module_dgst_pos3;
174 module_ctx->module_dgst_size = module_dgst_size;
175 module_ctx->module_dictstat_disable = MODULE_DEFAULT;
176 module_ctx->module_esalt_size = MODULE_DEFAULT;
177 module_ctx->module_extra_buffer_size = MODULE_DEFAULT;
178 module_ctx->module_extra_tmp_size = MODULE_DEFAULT;
179 module_ctx->module_extra_tuningdb_block = MODULE_DEFAULT;
180 module_ctx->module_forced_outfile_format = MODULE_DEFAULT;
181 module_ctx->module_hash_binary_count = MODULE_DEFAULT;
182 module_ctx->module_hash_binary_parse = MODULE_DEFAULT;
183 module_ctx->module_hash_binary_save = MODULE_DEFAULT;
184 module_ctx->module_hash_decode_potfile = MODULE_DEFAULT;
185 module_ctx->module_hash_decode_zero_hash = MODULE_DEFAULT;
186 module_ctx->module_hash_decode = module_hash_decode;
187 module_ctx->module_hash_encode_status = MODULE_DEFAULT;
188 module_ctx->module_hash_encode_potfile = MODULE_DEFAULT;
189 module_ctx->module_hash_encode = module_hash_encode;
190 module_ctx->module_hash_init_selftest = MODULE_DEFAULT;
191 module_ctx->module_hash_mode = MODULE_DEFAULT;
192 module_ctx->module_hash_category = module_hash_category;
193 module_ctx->module_hash_name = module_hash_name;
194 module_ctx->module_hashes_count_min = MODULE_DEFAULT;
195 module_ctx->module_hashes_count_max = MODULE_DEFAULT;
196 module_ctx->module_hlfmt_disable = MODULE_DEFAULT;
197 module_ctx->module_hook_extra_param_size = MODULE_DEFAULT;
198 module_ctx->module_hook_extra_param_init = MODULE_DEFAULT;
199 module_ctx->module_hook_extra_param_term = MODULE_DEFAULT;
200 module_ctx->module_hook12 = MODULE_DEFAULT;
201 module_ctx->module_hook23 = MODULE_DEFAULT;
202 module_ctx->module_hook_salt_size = MODULE_DEFAULT;
203 module_ctx->module_hook_size = MODULE_DEFAULT;
204 module_ctx->module_jit_build_options = MODULE_DEFAULT;
205 module_ctx->module_jit_cache_disable = MODULE_DEFAULT;
206 module_ctx->module_kernel_accel_max = MODULE_DEFAULT;
207 module_ctx->module_kernel_accel_min = MODULE_DEFAULT;
208 module_ctx->module_kernel_loops_max = MODULE_DEFAULT;
209 module_ctx->module_kernel_loops_min = MODULE_DEFAULT;
210 module_ctx->module_kernel_threads_max = MODULE_DEFAULT;
211 module_ctx->module_kernel_threads_min = MODULE_DEFAULT;
212 module_ctx->module_kern_type = module_kern_type;
213 module_ctx->module_kern_type_dynamic = MODULE_DEFAULT;
214 module_ctx->module_opti_type = module_opti_type;
215 module_ctx->module_opts_type = module_opts_type;
216 module_ctx->module_outfile_check_disable = MODULE_DEFAULT;
217 module_ctx->module_outfile_check_nocomp = MODULE_DEFAULT;
218 module_ctx->module_potfile_custom_check = MODULE_DEFAULT;
219 module_ctx->module_potfile_disable = MODULE_DEFAULT;
220 module_ctx->module_potfile_keep_all_hashes = MODULE_DEFAULT;
221 module_ctx->module_pwdump_column = MODULE_DEFAULT;
222 module_ctx->module_pw_max = module_pw_max;
223 module_ctx->module_pw_min = MODULE_DEFAULT;
224 module_ctx->module_salt_max = MODULE_DEFAULT;
225 module_ctx->module_salt_min = MODULE_DEFAULT;
226 module_ctx->module_salt_type = module_salt_type;
227 module_ctx->module_separator = MODULE_DEFAULT;
228 module_ctx->module_st_hash = module_st_hash;
229 module_ctx->module_st_pass = module_st_pass;
230 module_ctx->module_tmp_size = module_tmp_size;
231 module_ctx->module_unstable_warning = MODULE_DEFAULT;
232 module_ctx->module_warmup_disable = MODULE_DEFAULT;
233 }
234