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hashcat stops after about 37 minutes - Printable Version

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hashcat stops after about 37 minutes - patpro - 07-27-2017

Hi,

I've got a large number of hashes and for each one I've got a very serious candidate that just need some mask added to get the real password.
So I've made a script that launch hashcat with my candidates (base word + case toggle) against all hashes that share the same "candidate".
The command looks like this:

Code:
./hashcat64.bin -a 6 --increment -m 120 "/foo/bar/hc-tmp/${f}.h" "/foo/bar/hc-tmp/${f}.wl" -1 ?l?u?d ?1?1?1?1?1?1 --potfile-path=/foo/bar/bouclehc.pot --status --status-timer=60 -w 4

Things go smoothly, at least until I reach an increment that brings time above 37 minutes. Strangely, hashcat will just end the session when it reaches about 37-38 minutes. It means it won't finish the last mask (?1?1?1?1?1?1).
Here are two examples:

Code:
Session..........: hashcat Status...........: Exhausted Hash.Type........: sha1($salt.$pass) Hash.Target......: ********************** Time.Started.....: Thu Jul 27 13:12:01 2017 (37 mins, 49 secs) Time.Estimated...: Sat Jul 29 02:38:36 2017 (1 day, 12 hours) Guess.Base.......: File (/foo/bar/hc-tmp/haefxsdrgbh:.wl), Left Side Guess.Mod........: Mask (?1?1?1?1?1?1) [6], Right Side Guess.Charset....: -1 ?l?u?d, -2 Undefined, -3 Undefined, -4 Undefined Speed.Dev.#2.....:   431.4 MH/s (0.93ms) Recovered........: 0/1 (0.00%) Digests, 0/1 (0.00%) Salts Progress.........: 988836593664/58163441238016 (1.70%) Rejected.........: 0/988836593664 (0.00%) Restore.Point....: 1024/1024 (100.00%) Candidates.#2....: aefxsdrgbhlxNROR -> AEFXSDRGBHt4G080 HWMon.Dev.#2.....: Temp: 71c Fan: 47% Util: 77% Core:1835MHz Mem:4513MHz Bus:16 Started: Thu Jul 27 12:34:55 2017 Stopped: Thu Jul 27 13:49:51 2017

and

Code:
Session..........: hashcat Status...........: Exhausted Hash.Type........: sha1($salt.$pass) Hash.Target......: ********************** Time.Started.....: Thu Jul 27 14:27:15 2017 (37 mins, 59 secs) Time.Estimated...: Sat Jul 29 03:54:37 2017 (1 day, 12 hours) Guess.Base.......: File (/foo/bar/hc-tmp/hnadinejame:.wl), Left Side Guess.Mod........: Mask (?1?1?1?1?1?1) [6], Right Side Guess.Charset....: -1 ?l?u?d, -2 Undefined, -3 Undefined, -4 Undefined Speed.Dev.#2.....:   431.3 MH/s (0.93ms) Recovered........: 0/1 (0.00%) Digests, 0/1 (0.00%) Salts Progress.........: 988836593664/58163441238016 (1.70%) Rejected.........: 0/988836593664 (0.00%) Restore.Point....: 1024/1024 (100.00%) Candidates.#2....: nadinejamelxNROR -> NADINEJAMEt4G080 HWMon.Dev.#2.....: Temp: 71c Fan: 47% Util: 77% Core:1835MHz Mem:4513MHz Bus:16 Started: Thu Jul 27 13:50:06 2017 Stopped: Thu Jul 27 15:05:15 2017

The script runs in a screen, and is basically a while true loop.

Any idea why hashcat would abort the session after about 37-38 minutes each time?

RE: hashcat stops after about 37 minutes - patpro - 07-27-2017

Some precision: usually I can make long sessions of hashcat without any problem (several weeks), but I don't usually use -6 mode.
A quick & dirty log analysis shows this timing:
Code:
37.9167 38.8333 37.9167 42.8 37.8167 37.9833 38.0667 38.0833 38.0667 38.5333
No error, nothing special (neither in hashcat.log nor in syslog/dmesg/...)

RE: hashcat stops after about 37 minutes - atom - 07-28-2017

Please retry with hashcat v3.6.0 release version

RE: hashcat stops after about 37 minutes - patpro - 07-28-2017

Hi atom,
I'm already running v3.6.0

RE: hashcat stops after about 37 minutes - philsmd - 07-28-2017

Did you try to run the commands without the for/while loop?
Does the problem also happen without the loop, e.g running the commands one after the other?

RE: hashcat stops after about 37 minutes - patpro - 07-28-2017

I'm currently running the same command outside of a loop, and so far so good: it ran 4 hours on 5 char long mask, and the 6 char mask is running for 2 hours now.
Can't get why hashcat inside a while loop would end spontaneously well before exhaustion…

RE: hashcat stops after about 37 minutes - patpro - 07-28-2017

Ok, so after a while (4 hours) the "out of the loop" command eventually stopped too, well ahead from schedule. Here are the 3 last status printed on screen:

Code:
Session..........: hashcat Status...........: Running Hash.Type........: sha1($salt.$pass) Hash.Target......: /foo/bar/hc-tmp/hcharlestow:.h Time.Started.....: Fri Jul 28 18:54:43 2017 (4 hours, 16 mins) Time.Estimated...: Tue Aug 8 07:16:10 2017 (10 days, 8 hours) Guess.Base.......: File (/foo/bar/hc-tmp/hcharlestow:.wl), Left Side Guess.Mod........: Mask (?1?1?1?1?1?1) [6], Right Side Guess.Charset....: -1 ?l?u?d, -2 Undefined, -3 Undefined, -4 Undefined Speed.Dev.#2.....: 384.1 MH/s (1.08ms) Recovered........: 2/8 (25.00%) Digests, 2/8 (25.00%) Salts Progress.........: 6891217223680/465307529904128 (1.48%) Rejected.........: 0/6891217223680 (0.00%) Restore.Point....: 0/1024 (0.00%) Candidates.#2....: charlestow8W3kie -> CHARLESTOWzNoari HWMon.Dev.#2.....: Temp: 71c Fan: 47% Util: 80% Core:1835MHz Mem:4513MHz Bus:16 [s]tatus [p]ause [r]esume [b]ypass [c]heckpoint [q]uit => Session..........: hashcat Status...........: Running Hash.Type........: sha1($salt.$pass) Hash.Target......: /foo/bar/hc-tmp/hcharlestow:.h Time.Started.....: Fri Jul 28 18:54:43 2017 (4 hours, 17 mins) Time.Estimated...: Tue Aug 8 07:13:11 2017 (10 days, 8 hours) Guess.Base.......: File (/foo/bar/hc-tmp/hcharlestow:.wl), Left Side Guess.Mod........: Mask (?1?1?1?1?1?1) [6], Right Side Guess.Charset....: -1 ?l?u?d, -2 Undefined, -3 Undefined, -4 Undefined Speed.Dev.#2.....: 384.2 MH/s (1.08ms) Recovered........: 2/8 (25.00%) Digests, 2/8 (25.00%) Salts Progress.........: 6914275409920/465307529904128 (1.49%) Rejected.........: 0/6914275409920 (0.00%) Restore.Point....: 0/1024 (0.00%) Candidates.#2....: charlestow3HtJor -> CHARLESTOWAOoVAR HWMon.Dev.#2.....: Temp: 71c Fan: 47% Util: 80% Core:1835MHz Mem:4513MHz Bus:16 Session..........: hashcat Status...........: Exhausted Hash.Type........: sha1($salt.$pass) Hash.Target......: /foo/bar/hc-tmp/hcharlestow:.h Time.Started.....: Fri Jul 28 18:54:43 2017 (4 hours, 17 mins) Time.Estimated...: Tue Aug 8 07:33:11 2017 (10 days, 8 hours) Guess.Base.......: File (/foo/bar/hc-tmp/hcharlestow:.wl), Left Side Guess.Mod........: Mask (?1?1?1?1?1?1) [6], Right Side Guess.Charset....: -1 ?l?u?d, -2 Undefined, -3 Undefined, -4 Undefined Speed.Dev.#2.....: 383.7 MH/s (1.07ms) Recovered........: 2/8 (25.00%) Digests, 2/8 (25.00%) Salts Progress.........: 7910692749312/465307529904128 (1.70%) Rejected.........: 0/7910692749312 (0.00%) Restore.Point....: 1024/1024 (100.00%) Candidates.#2....: charlestowlxNROR -> CHARLESTOWt4G080 HWMon.Dev.#2.....: Temp: 70c Fan: 47% Util: 73% Core:1835MHz Mem:4513MHz Bus:16 Started: Fri Jul 28 14:40:22 2017 Stopped: Fri Jul 28 23:12:19 2017

Full log for this incremental session:
Code:
TOP.597b30b6.0008d9dd START TOP.597b30b6.0008d9dd user_options->separator : TOP.597b30b6.0008d9dd user_options->custom_charset_1 ?l?u?d TOP.597b30b6.0008d9dd user_options->encoding_from utf-8 TOP.597b30b6.0008d9dd user_options->encoding_to utf-8 TOP.597b30b6.0008d9dd user_options->potfile_path /foo/bar/bouclehc.pot TOP.597b30b6.0008d9dd user_options->rule_buf_l : TOP.597b30b6.0008d9dd user_options->rule_buf_r : TOP.597b30b6.0008d9dd user_options->session hashcat TOP.597b30b6.0008d9dd user_options->limit 0 TOP.597b30b6.0008d9dd user_options->skip 0 TOP.597b30b6.0008d9dd user_options->attack_mode 6 TOP.597b30b6.0008d9dd user_options->benchmark 0 TOP.597b30b6.0008d9dd user_options->bitmap_max 24 TOP.597b30b6.0008d9dd user_options->bitmap_min 16 TOP.597b30b6.0008d9dd user_options->debug_mode 0 TOP.597b30b6.0008d9dd user_options->force 0 TOP.597b30b6.0008d9dd user_options->gpu_temp_abort 90 TOP.597b30b6.0008d9dd user_options->gpu_temp_disable 0 TOP.597b30b6.0008d9dd user_options->gpu_temp_retain 0 TOP.597b30b6.0008d9dd user_options->hash_mode 120 TOP.597b30b6.0008d9dd user_options->hex_charset 0 TOP.597b30b6.0008d9dd user_options->hex_salt 0 TOP.597b30b6.0008d9dd user_options->hex_wordlist 0 TOP.597b30b6.0008d9dd user_options->increment 1 TOP.597b30b6.0008d9dd user_options->increment_max 54 TOP.597b30b6.0008d9dd user_options->increment_min 1 TOP.597b30b6.0008d9dd user_options->keep_guessing 0 TOP.597b30b6.0008d9dd user_options->kernel_accel 0 TOP.597b30b6.0008d9dd user_options->kernel_loops 0 TOP.597b30b6.0008d9dd user_options->keyspace 0 TOP.597b30b6.0008d9dd user_options->left 0 TOP.597b30b6.0008d9dd user_options->logfile_disable 0 TOP.597b30b6.0008d9dd user_options->loopback 0 TOP.597b30b6.0008d9dd user_options->machine_readable 0 TOP.597b30b6.0008d9dd user_options->markov_classic 0 TOP.597b30b6.0008d9dd user_options->markov_disable 0 TOP.597b30b6.0008d9dd user_options->markov_threshold 256 TOP.597b30b6.0008d9dd user_options->nvidia_spin_damp 100 TOP.597b30b6.0008d9dd user_options->opencl_info 0 TOP.597b30b6.0008d9dd user_options->opencl_vector_width 0 TOP.597b30b6.0008d9dd user_options->outfile_autohex 1 TOP.597b30b6.0008d9dd user_options->outfile_check_timer 5 TOP.597b30b6.0008d9dd user_options->outfile_format 3 TOP.597b30b6.0008d9dd user_options->potfile_disable 0 TOP.597b30b6.0008d9dd user_options->powertune_enable 0 TOP.597b30b6.0008d9dd user_options->quiet 0 TOP.597b30b6.0008d9dd user_options->remove 0 TOP.597b30b6.0008d9dd user_options->remove_timer 60 TOP.597b30b6.0008d9dd user_options->restore 0 TOP.597b30b6.0008d9dd user_options->restore_disable 0 TOP.597b30b6.0008d9dd user_options->restore_timer 60 TOP.597b30b6.0008d9dd user_options->rp_files_cnt 0 TOP.597b30b6.0008d9dd user_options->rp_gen 0 TOP.597b30b6.0008d9dd user_options->rp_gen_func_max 4 TOP.597b30b6.0008d9dd user_options->rp_gen_func_min 1 TOP.597b30b6.0008d9dd user_options->rp_gen_seed 0 TOP.597b30b6.0008d9dd user_options->runtime 0 TOP.597b30b6.0008d9dd user_options->scrypt_tmto 0 TOP.597b30b6.0008d9dd user_options->segment_size 33554432 TOP.597b30b6.0008d9dd user_options->show 0 TOP.597b30b6.0008d9dd user_options->status 1 TOP.597b30b6.0008d9dd user_options->status_timer 60 TOP.597b30b6.0008d9dd user_options->stdout_flag 0 TOP.597b30b6.0008d9dd user_options->speed_only 0 TOP.597b30b6.0008d9dd user_options->progress_only 0 TOP.597b30b6.0008d9dd user_options->usage 0 TOP.597b30b6.0008d9dd user_options->username 0 TOP.597b30b6.0008d9dd user_options->veracrypt_pim 0 TOP.597b30b6.0008d9dd user_options->version 0 TOP.597b30b6.0008d9dd user_options->weak_hash_threshold 0 TOP.597b30b6.0008d9dd user_options->workload_profile 4 TOP.597b30b6.0008d9dd hashes->hashfile /foo/bar/hc-tmp/hcharlestow:.h TOP.597b30b6.0008d9dd hashes->hashlist_mode 4 TOP.597b30b6.0008d9dd hashes->hashlist_format 0 TOP.597b30b6.0008d9dd hashes->hashes_cnt 0 TOP.597b30b6.0008d9dd hashes->digests_cnt 8 TOP.597b30b6.0008d9dd hashes->digests_done 1 TOP.597b30b6.0008d9dd hashes->salts_cnt 8 TOP.597b30b6.0008d9dd hashes->salts_done 1 TOP.597b30b6.0008d9dd SUB.597b30b7.000c8cf6 START TOP.597b30b6.0008d9dd SUB.597b30b7.000c8cf6 straight_ctx->dict /foo/bar/hc-tmp/hcharlestow:.wl TOP.597b30b6.0008d9dd SUB.597b30b7.000c8cf6 mask_ctx->mask ?1 TOP.597b30b6.0008d9dd SUB.597b30b7.000c8cf6 runtime_start 1501245624 TOP.597b30b6.0008d9dd SUB.597b30b7.000c8cf6 runtime_stop 1501245624 TOP.597b30b6.0008d9dd SUB.597b30b7.000c8cf6 status-after-work 4 TOP.597b30b6.0008d9dd SUB.597b30b7.000c8cf6 STOP TOP.597b30b6.0008d9dd SUB.597b30b8.00080e82 START TOP.597b30b6.0008d9dd SUB.597b30b8.00080e82 straight_ctx->dict /foo/bar/hc-tmp/hcharlestow:.wl TOP.597b30b6.0008d9dd SUB.597b30b8.00080e82 mask_ctx->mask ?1?1 TOP.597b30b6.0008d9dd SUB.597b30b8.00080e82 runtime_start 1501245628 TOP.597b30b6.0008d9dd SUB.597b30b8.00080e82 runtime_stop 1501245628 TOP.597b30b6.0008d9dd SUB.597b30b8.00080e82 status-after-work 4 TOP.597b30b6.0008d9dd SUB.597b30b8.00080e82 STOP TOP.597b30b6.0008d9dd SUB.597b30bc.000e94f8 START TOP.597b30b6.0008d9dd SUB.597b30bc.000e94f8 straight_ctx->dict /foo/bar/hc-tmp/hcharlestow:.wl TOP.597b30b6.0008d9dd SUB.597b30bc.000e94f8 mask_ctx->mask ?1?1?1 TOP.597b30b6.0008d9dd SUB.597b30bc.000e94f8 runtime_start 1501245633 TOP.597b30b6.0008d9dd SUB.597b30bc.000e94f8 runtime_stop 1501245637 TOP.597b30b6.0008d9dd SUB.597b30bc.000e94f8 status-after-work 4 TOP.597b30b6.0008d9dd SUB.597b30bc.000e94f8 STOP TOP.597b30b6.0008d9dd SUB.597b30c5.000bdcb6 START TOP.597b30b6.0008d9dd SUB.597b30c5.000bdcb6 straight_ctx->dict /foo/bar/hc-tmp/hcharlestow:.wl TOP.597b30b6.0008d9dd SUB.597b30c5.000bdcb6 mask_ctx->mask ?1?1?1?1 TOP.597b30b6.0008d9dd SUB.597b30c5.000bdcb6 runtime_start 1501245642 TOP.597b30b6.0008d9dd SUB.597b30c5.000bdcb6 runtime_stop 1501245913 TOP.597b30b6.0008d9dd SUB.597b30c5.000bdcb6 status-after-work 4 TOP.597b30b6.0008d9dd SUB.597b30c5.000bdcb6 STOP TOP.597b30b6.0008d9dd SUB.597b31d9.000244a7 START TOP.597b30b6.0008d9dd SUB.597b31d9.000244a7 straight_ctx->dict /foo/bar/hc-tmp/hcharlestow:.wl TOP.597b30b6.0008d9dd SUB.597b31d9.000244a7 mask_ctx->mask ?1?1?1?1?1 TOP.597b30b6.0008d9dd SUB.597b31d9.000244a7 runtime_start 1501245917 TOP.597b30b6.0008d9dd SUB.597b31d9.000244a7 runtime_stop 1501260879 TOP.597b30b6.0008d9dd SUB.597b31d9.000244a7 status-after-work 4 TOP.597b30b6.0008d9dd SUB.597b31d9.000244a7 STOP TOP.597b30b6.0008d9dd SUB.597b6c4f.00037489 START TOP.597b30b6.0008d9dd SUB.597b6c4f.00037489 straight_ctx->dict /foo/bar/hc-tmp/hcharlestow:.wl TOP.597b30b6.0008d9dd SUB.597b6c4f.00037489 mask_ctx->mask ?1?1?1?1?1?1 TOP.597b30b6.0008d9dd SUB.597b6c4f.00037489 runtime_start 1501260883 TOP.597b30b6.0008d9dd SUB.597b6c4f.00037489 runtime_stop 1501276338 TOP.597b30b6.0008d9dd SUB.597b6c4f.00037489 status-after-work 4 TOP.597b30b6.0008d9dd SUB.597b6c4f.00037489 STOP TOP.597b30b6.0008d9dd proc_start 1501245622 TOP.597b30b6.0008d9dd proc_stop 1501276339 TOP.597b30b6.0008d9dd STOP


RE: hashcat stops after about 37 minutes - philsmd - 07-29-2017

Does the problem also happen without the --increment command line option?

RE: hashcat stops after about 37 minutes - patpro - 07-29-2017

I've juste finished a test, it shows the same behavior without incremental:

Code:
Session..........: hashcat Status...........: Exhausted Hash.Type........: sha1($salt.$pass) Hash.Target......: /foo/bar/hc-tmp/hcassandraf:.h Time.Started.....: Sat Jul 29 13:34:07 2017 (2 hours, 8 mins) Time.Estimated...: Thu Aug 3 19:07:33 2017 (5 days, 3 hours) Guess.Base.......: File (/foo/bar/hc-tmp/hcassandraf:.wl), Left Side Guess.Mod........: Mask (?1?1?1?1?1?1) [6], Right Side Guess.Charset....: -1 ?l?u?d, -2 Undefined, -3 Undefined, -4 Undefined Speed.Dev.#2.....: 386.1 MH/s (1.07ms) Recovered........: 3/6 (50.00%) Digests, 3/6 (50.00%) Salts Progress.........: 5933019561984/348980647428096 (1.70%) Rejected.........: 0/5933019561984 (0.00%) Restore.Point....: 1024/1024 (100.00%) Candidates.#2....: cassandraf991cha -> CASSANDRAFwelfin HWMon.Dev.#2.....: Temp: 72c Fan: 48% Util: 80% Core:1847MHz Mem:4513MHz Bus:16 Started: Sat Jul 29 13:34:01 2017 Stopped: Sat Jul 29 15:42:34 2017


RE: hashcat stops after about 37 minutes - atom - 07-29-2017

What I wanted to make sure is that you're not using the latest beta but the release version. Please confirm.