hashcat Forum

While running 3200 mode attack, I meet following issue:

The progress starts:

Quote:hashcat.exe -m 3200 -w 4 -a 0 example0.hash ignis-10M.txt
hashcat (v6.2.6) starting

* Device #1: WARNING! Kernel exec timeout is not disabled.
            This may cause "CL_OUT_OF_RESOURCES" or related errors.
            To disable the timeout, see: https://hashcat.net/q/timeoutpatch
* Device #2: WARNING! Kernel exec timeout is not disabled.
            This may cause "CL_OUT_OF_RESOURCES" or related errors.
            To disable the timeout, see: https://hashcat.net/q/timeoutpatch
CUDA API (CUDA 12.2)
====================
* Device #1: NVIDIA GeForce RTX 4090, 23008/24563 MB, 128MCU

OpenCL API (OpenCL 3.0 CUDA 12.2.135) - Platform #1 [NVIDIA Corporation]
========================================================================
* Device #2: NVIDIA GeForce RTX 4090, skipped

Minimum password length supported by kernel: 0
Maximum password length supported by kernel: 72
Hashes: 325 digests; 286 unique digests, 286 unique salts
Bitmaps: 16 bits, 65536 entries, 0x0000ffff mask, 262144 bytes, 5/13 rotates
Rules: 1

Optimizers applied:
* Zero-Byte

Watchdog: Temperature abort trigger set to 90c

INFO: Removed 9 hashes found as potfile entries.

Host memory required for this attack: 843 MB

Dictionary cache built:
* Filename..: ignis-10M.txt
* Passwords.: 10000000
* Bytes.....: 94461698
* Keyspace..: 10000000
* Runtime...: 1 sec

For the first minute I have such a speed:

Quote:Session..........: hashcat
Status...........: Running
Hash.Mode........: 3200 (bcrypt $2*$, Blowfish (Unix))
Hash.Target......: example0.hash
Time.Started.....: Sat Aug 19 01:25:14 2023 (27 secs)
Time.Estimated...: Sat Aug 19 13:42:13 2023 (12 hours, 16 mins)
Kernel.Feature...: Pure Kernel
Guess.Base.......: File (ignis-10M.txt)
Guess.Queue......: 1/1 (100.00%)
Speed.#1.........:    62648 H/s (387.18ms) @ Accel:16 Loops:64 Thr:24 Vec:1
Recovered........: 9/286 (3.15%) Digests (total), 0/286 (0.00%) Digests (new), 9/286 (3.15%) Salts
Progress.........: 1474560/2860000000 (0.05%)
Rejected.........: 0/1474560 (0.00%)
Restore.Point....: 0/10000000 (0.00%)
Restore.Sub.#1...: Salt:30 Amplifier:0-1 Iteration:768-832
Candidate.Engine.: Device Generator
Candidates.#1....: 123456 -> 24091986
Hardware.Mon.#1..: Temp: 47c Fan: 31% Util:100% Core:2820MHz Mem:10251MHz Bus:16

After like 30 seconds, speed decreases in few times, and progress string like freezes for seconds on " 1474560/2860000000"

And the next status log is :

Quote:Session..........: hashcat
Status...........: Running
Hash.Mode........: 3200 (bcrypt $2*$, Blowfish (Unix))
Hash.Target......: example0.hash
Time.Started.....: Sat Aug 19 01:25:14 2023 (34 secs)
Time.Estimated...: Sat Aug 19 16:32:20 2023 (15 hours, 6 mins)
Kernel.Feature...: Pure Kernel
Guess.Base.......: File (ignis-10M.txt)
Guess.Queue......: 1/1 (100.00%)
Speed.#1.........:    50899 H/s (387.21ms) @ Accel:16 Loops:64 Thr:24 Vec:1
Recovered........: 9/286 (3.15%) Digests (total), 0/286 (0.00%) Digests (new), 9/286 (3.15%) Salts
Progress.........: 1523712/2860000000 (0.05%)
Rejected.........: 0/1523712 (0.00%)
Restore.Point....: 0/10000000 (0.00%)
Restore.Sub.#1...: Salt:31 Amplifier:0-1 Iteration:896-960
Candidate.Engine.: Device Generator
Candidates.#1....: 123456 -> 24091986
Hardware.Mon.#1..: Temp: 47c Fan: 31% Util:100% Core:2820MHz Mem:10251MHz Bus:16

And after this

Quote:Session..........: hashcat
Status...........: Running
Hash.Mode........: 3200 (bcrypt $2*$, Blowfish (Unix))
Hash.Target......: example0.hash
Time.Started.....: Sat Aug 19 01:25:14 2023 (1 min, 2 secs)
Time.Estimated...: Sun Aug 20 04:19:50 2023 (1 day, 2 hours)
Kernel.Feature...: Pure Kernel
Guess.Base.......: File (ignis-10M.txt)
Guess.Queue......: 1/1 (100.00%)
Speed.#1.........:    28594 H/s (388.22ms) @ Accel:16 Loops:64 Thr:24 Vec:1
Recovered........: 9/286 (3.15%) Digests (total), 0/286 (0.00%) Digests (new), 9/286 (3.15%) Salts
Progress.........: 1769472/2860000000 (0.06%)
Rejected.........: 0/1769472 (0.00%)
Restore.Point....: 0/10000000 (0.00%)
Restore.Sub.#1...: Salt:36 Amplifier:0-1 Iteration:320-384
Candidate.Engine.: Device Generator
Candidates.#1....: 123456 -> 24091986
Hardware.Mon.#1..: Temp: 47c Fan: 31% Util:100% Core:2820MHz Mem:10251MHz Bus:16

You could see progress is continuing, but not as fast as on first 30 sec~

And in few minutes ,I have this speed:

Quote:Session..........: hashcat
Status...........: Running
Hash.Mode........: 3200 (bcrypt $2*$, Blowfish (Unix))
Hash.Target......: example0.hash
Time.Started.....: Sat Aug 19 01:25:14 2023 (6 mins, 20 secs)
Time.Estimated...: Mon Aug 21 22:17:36 2023 (2 days, 20 hours)
Kernel.Feature...: Pure Kernel
Guess.Base.......: File (ignis-10M.txt)
Guess.Queue......: 1/1 (100.00%)
Speed.#1.........:    11172 H/s (390.30ms) @ Accel:16 Loops:64 Thr:24 Vec:1
Recovered........: 9/286 (3.15%) Digests (total), 0/286 (0.00%) Digests (new), 9/286 (3.15%) Salts
Progress.........: 4276224/2860000000 (0.15%)
Rejected.........: 0/4276224 (0.00%)
Restore.Point....: 0/10000000 (0.00%)
Restore.Sub.#1...: Salt:87 Amplifier:0-1 Iteration:960-1024
Candidate.Engine.: Device Generator
Candidates.#1....: 123456 -> 24091986
Hardware.Mon.#1..: Temp: 48c Fan: 31% Util:100% Core:2820MHz Mem:10251MHz Bus:16

Is it how hashcat naturally working with this algorithm , or I have some troubles to be fixed to have constant 60kH\s speed. 
I would appreciate your assistance so much, as I am testing new setup , and curios a lot

One parameter to the story I've posted above:
Wordlist of 300 hashes, consists of : 75% $10$, 25% $7$, so maybe it shows speed for $7$ at first , but they are not at the start of the txt file.

It's what you thought, the low cost bcrypt are being tried first and the average speed is falling as the 10 cost spend more time being processed.