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Help with Hashcat

June 3, 2019, 7:52 pm
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Hey everyone, I’m new to the whole password thing. I’m doing a school project on password security, and I’ve been using Hashcat. I don’t expect all of you to use Hashcat but I bet a few of you do. Anyway, I’m using windows and I’ve come across a few issues. Thanks in advance if you can help.

First, any attack will work once and then not work immediately after. I’m only cracking passwords with MD5 hashing, nothing too complicated. Anyone know what’s going on with it?

Second, is there a way to take into account special characters that replace alphanumerics in brute force? For example, @ can replace “a” but I don’t want to add special characters in brute force because it will add a bunch of time.
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Newbie Fury

June 4, 2019, 2:22 am
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Hi,

I have four computers that I use regularly - an i5 iMac, an i7 Windows box, an i7 laptop and an i5 machine running Linux Mint.  None of them will run the current version of Hashcat because (I think) the GPUs are not up to snuff.  I get OpenCL errors on them all.  I am currently looking for a later model GeForce card to stick into the Windows box.

In the interim, I would like to confirm that the hashes that I am producing are correct and I would like to run one against a simple dictionary file (containing the password) . If Hashcat correctly cracks it, I will know that my hashes are right.

To get around the problem of no working version of Hashcat, and bearing in mind that the computational task is not going to be very onerous, I thought that I would see if I could find a CPU-only version of Hashcat.  A short search lead me to https://github.com/hashcat/hashcat-legacy which purports to be a CPU-only version however, following the instructions in the documentation gives me not version 1 or 2 as I am expecting, but bloody version 5.1 again.

Is there any kindly expert out there who could lead a baffled novice through the process needed to get the CPU-only legacy version up and running so that I can carry out my simple tests on any of the above machines?

Any assistance would be very much appreciated.
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CL_BUILD_PROGRAM_FAILURE

June 4, 2019, 12:47 pm
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Hello everyone,

It seems this error has been encountered before ( https://hashcat.net/forum/thread-8343.html )

However I am running the newest version of Hashcat, and I have verified rocm is install correctly on my system.

I'm running on Fedora30


Output of uname -r
Code:
5.1.5-300.fc30.x86_64

and I am getting the following output;

Code:
sudo hashcat -b --optimized-kernel-enable -m 11300


hashcat (v5.1.0) starting in benchmark mode...

Benchmarking uses hand-optimized kernel code by default.
You can use it in your cracking session by setting the -O option.
Note: Using optimized kernel code limits the maximum supported password length.
To disable the optimized kernel code in benchmark mode, use the -w option.

OpenCL Platform #1: Advanced Micro Devices, Inc.
================================================
* Device #1: gfx900, 13912/16368 MB allocatable, 64MCU

Benchmark relevant options:
===========================
* --optimized-kernel-enable

Hashmode: 11300 - Bitcoin/Litecoin wallet.dat (Iterations: 199999)

/tmp/AMD_13669_18/t_13669_20.cl:214:15: warning: loop not unrolled: the optimizer was unable to perform the requested transformation; the transformation might be disabled or specified as part of an unsupported transformation ordering [-Wpass-failed=transform-warning]
__kernel void m11300_comp (KERN_ATTR_TMPS_ESALT (bitcoin_wallet_tmp_t, bitcoin_wallet_t))
             ^
1 warning generated.
warning: <unknown>:0:0: loop not unrolled: the optimizer was unable to perform the requested transformation; the transformation might be disabled or specified as part of an unsupported transformation ordering
clBuildProgram(): CL_BUILD_PROGRAM_FAILURE

: error: undefined hidden symbol: switch_buffer_by_offset_8x4_carry_be_S
>>> referenced by /usr/share/hashcat/OpenCL/t_13669_33-f3a1d6.o:(m11300_init)

: error: undefined hidden symbol: switch_buffer_by_offset_8x4_carry_be_S
>>> referenced by /usr/share/hashcat/OpenCL/t_13669_33-f3a1d6.o:(m11300_init)

: error: undefined hidden symbol: switch_buffer_by_offset_8x4_be_S
>>> referenced by /usr/share/hashcat/OpenCL/t_13669_33-f3a1d6.o:(m11300_init)

: error: undefined hidden symbol: switch_buffer_by_offset_8x4_be_S
>>> referenced by /usr/share/hashcat/OpenCL/t_13669_33-f3a1d6.o:(m11300_init)

: error: undefined hidden symbol: switch_buffer_by_offset_8x4_be_S
>>> referenced by /usr/share/hashcat/OpenCL/t_13669_33-f3a1d6.o:(m11300_init)

: error: undefined hidden symbol: switch_buffer_by_offset_8x4_be_S
>>> referenced by /usr/share/hashcat/OpenCL/t_13669_33-f3a1d6.o:(m11300_init)

: error: undefined hidden symbol: switch_buffer_by_offset_8x4_be_S
>>> referenced by /usr/share/hashcat/OpenCL/t_13669_33-f3a1d6.o:(m11300_init)

: error: undefined hidden symbol: switch_buffer_by_offset_8x4_be_S
>>> referenced by /usr/share/hashcat/OpenCL/t_13669_33-f3a1d6.o:(m11300_init)

: error: undefined hidden symbol: switch_buffer_by_offset_8x4_be_S
>>> referenced by /usr/share/hashcat/OpenCL/t_13669_33-f3a1d6.o:(m11300_init)

: error: undefined hidden symbol: switch_buffer_by_offset_8x4_be_S
>>> referenced by /usr/share/hashcat/OpenCL/t_13669_33-f3a1d6.o:(m11300_init)
Error: Creating the executable from LLVM IRs failed.

* Device #1: Kernel /usr/share/hashcat/OpenCL/m11300-pure.cl build failed - proceeding without this device.

I was previously getting the Gallium/Mesa error, so I removed the mesa-opencl package using rpm -e, and it at least got me this far.   Some other hashes work just fine in benchmark mode.

Previous threads seem to note an issue with the AMD driver, and a workaround was placed in Hashcat, however since the error is popping up for me, I'm guessing it's not fully resolved.

has anyone got an idea of what I can do to get it working short of blowing my machine away and installing Ubuntu or something?
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Plz help with iTunes encryption

June 5, 2019, 2:11 am
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I need a lot of help with iTunes password recovery.  I have the manifest pst but cant do anything more.  My vindictive ex-wife changed my password, and now encrypted, so i cant back up any of my devices.
i have tried to install Hashcat, but errors come up.  I have managed to postpone court documentation until after Xmas, so i do have a little extra time now to gain access.
Currently trying Brute-force, but 16Billion passwords later, still going on 6 characters.
If someone can PM me for further details.
I really really need this help.
Tks!
Zin.
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hello, i'm new here. thank you for seeing

June 5, 2019, 6:42 pm
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Hello, I've never used anything but straight attack mode with rules, however i'd like to try mask attack on a specific single MD5.

Based on other hashes I've cracked its expected to to start with Uppercase char, lowercases in middle, followed by numerics, ends with special characters.

These are actual cracked hashes, im expecting the one i want is to be similiar:

Support@123
Nishani2!
Hello12345!

Expected length is between 8 to 14 chars

How do i perform such attack?
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Itunes Backup Password Never Set

June 6, 2019, 12:33 am
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I just recently got a new phone and traded in my old one for the new one. Backup my phone through itunes and encrypted was selected but it never prompted me for a pw. Got the new phone back to the house and of course it was asking for a pw that was never set. Just wondering if anyone knew of where itunes might pull a password from. I've been trying to crack this for over a week now. Used rockyou word list, made my own word list and a couple variations, tried brute force with numbers only out to 6 places, I've been using best64 rules on my word list as well.

 Hashcat has been pretty amazing but I feel like I'm just stabbing in the dark at this point. So I figured I would ask here if anyone knew where itunes gets that password info if you don't specify one. Thanks.
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how can i fix Gpu reaching the abort temp after a while ?

June 6, 2019, 2:12 am
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here is a fix that i tried 

a bat file with 

Code:
@echo off 
:loop1
if exist all.restore (
goto loop2
) ELSE (
exit
)
:loop2
hashcat64.exe --session all --restore
ping 127.0.0.1 -n 180 > nul
goto loop1

but will it be better if there was an option to lower the hash rate so that it doesn't heat up ?
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how can i fix Gpu reaching the abort temp after a while ?

June 6, 2019, 2:13 am
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here is a fix that i tried 

a bat file with 
Code:
@echo off 
:loop1
if exist all.restore (
goto loop2
) ELSE (
exit
)
:loop2
hashcat64.exe --session all --restore
ping 127.0.0.1 -n 180 > nul
goto loop1

but will it be better if there was an option to lower the hash rate so that it doesn't heat up ?
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cheap hardware for 200.0 kH/s WPA2 with single GPU

May 30, 2019, 2:36 am
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hashcats

we have a super low budget, like 500 eur for a complete server

we aim for a speed around ....

Hashmode: 2500 - WPA/WPA2 ----> Speed.Dev.#1.....:   200.0 kH/s
Hashmode: 1700 - SHA-512 ----> Speed.Dev.#1.....:   500.0 MH/s

we consider to use one of these GPUs ....

wpa2 eur gpu
285000 300 GeForce GTX 1070
224000 160 Radeon RX 580
205800 200 GeForce GTX 1060 6GB, 1536/6144 MB
185000 250 Radeon RX 480

here is a gaming laptop for 1000 eur
MSI GL63 8RE-811 (0016P5-811)
GPU = GeForce GTX 1060 6GB, 1536/6144 MB

can we go cheaper than that? (1000 eur)
we only need a hashcat server,
so we dont need the display, for example.

what would be a minimal hardware setup .... ?
to run one of the above GPUs
and to avoid most bottlenecks

we guess a raspberry pi 3 is too weak .... why?
what are the limiting factors here?

greetings from a poor mans cave
(yes we have electricity)

edit, here is our current wishlist
GPU
190eur MSI GeForce GTX 1060 6GT OCV1, 6GB GDDR5, DVI, HDMI, DP (V809-2234R), 150Watt peak power consumption
board + cpu + ram with Intel Socket 1151
055eur ASRock H110M-G/M.2 (90-MXB5H0-A0UAYZ), MicroATX, 3xPCIe
055eur Intel Celeron G3930, 2x 2.90GHz, boxed (BX80677G3930)
037eur Crucial DIMM 8GB, DDR4-2400, CL17 (CT8G4DFS824A)
case
026eur Inter-Tech IT-5908 (88881237), ATX, 2.3kg, 34Liter
psu
080eur be quiet! Pure Power 10 700W ATX 2.4 (BN275), 30dB
= 443eur
makes sense?
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How to filter a wordlist

June 6, 2019, 8:08 am
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Hi, 
I know that the password i'm trying to crack begins with D and has 10 letters (in plain-text), and i was wondering how can i filter from a word list only the passwords that meet these requirements

Any help would be appreciated.
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Anybody help me with this error, please?

June 6, 2019, 6:40 pm
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oes anyone know how to solve this problem? I have hashcat version 5.1.0 installed on windows with a GPU geforce 9800GT - 1GB with 258 bits but when running the command line below it returns:

hashcat64.exe -d 1 (GPU) -m 2500 wordlist.txt file.hccap

error-> This device's local mem size is too small.
in the previous versions also the same error, is it that I'm missing something in the installation or my video card does not even work?
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GPU Fan control ?

June 7, 2019, 10:42 am
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So I'm seeing following messages in the console : 

Code:
Driver temperature threshold met on GPU #1. Expect reduced performance.
Driver temperature threshold met on GPU #1. Expect reduced performance.
Driver temperature threshold met on GPU #1. Expect reduced performance.
Driver temperature threshold met on GPU #1. Expect reduced performance.
Driver temperature threshold met on GPU #1. Expect reduced performance.
Driver temperature threshold met on GPU #1. Expect reduced performance.
Driver temperature threshold met on GPU #1. Expect reduced performance.
Driver temperature threshold met on GPU #1. Expect reduced performance.
Driver temperature threshold met on GPU #1. Expect reduced performance.
Driver temperature threshold met on GPU #1. Expect reduced performance.

However, the fan is running at 65%
Code:
Hardware.Mon.#1..: Temp: 82c Fan: 65% Util: 98% Core:1936MHz Mem:3802MHz Bus:16

Is there's a way to better control the fan on GPU? 

Thanks
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How to crack a Truecrypt Container

June 7, 2019, 7:32 pm
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Hello

Can hashcat crack the Truecrypt Container password? If yes, how I can do it?

Thanks
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Hashes export

June 8, 2019, 6:45 am
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Hello everyone, i've got a little prob and maybe someone here can help me Smile


Ok so, i've got a database which contains name last name password mail etc etc. It also had hashes and for crack this, i want to know if it's possible to export only the hash from that file to crack them on hashcat.

Thanks for your attention 

Regards
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PMKID Generates Wrong ESSID And Password From Hash

June 8, 2019, 12:41 pm
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The PKMID that was generated is giving the wrong ESSID and password once the hash is cracked. I double checked when I ran airodump-ng and the ESSID and BSSID is no the right one once the PMKID hash is cracked. I'm trying to figure out why this is happening. Usually hashcat is accurate. I double checked everything before posting this.
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Hashcat not running on my CPU

June 8, 2019, 10:30 pm
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I am trying to run hashcat on both my CPU and GPU because by GPU is not that fancy. I installed the OpenCL drivers from intel (install_GUI.sh from l_opencl_p_18.1.0.015) and the OpenCL packages as mentioned in the wiki. After much trouble I managed to get hashcat to recognize my CPU:

Code:
hashcat -I
hashcat (v5.1.0-1138-g581839d4) starting...

* Device #2: CUDA SDK Toolkit installation NOT detected.
            CUDA SDK Toolkit installation required for proper device support and utilization
            Falling back to OpenCL Runtime

OpenCL Info:
============

OpenCL Platform ID #1
 Vendor..: Intel(R) Corporation
 Name....: Intel(R) CPU Runtime for OpenCL(TM) Applications
 Version.: OpenCL 2.1 LINUX

 Backend Device ID #1
   Type...........: CPU
   Vendor.ID......: 8
   Vendor.........: Intel(R) Corporation
   Name...........: Intel(R) Core(TM) i7-5500U CPU @ 2.40GHz
   Version........: OpenCL 2.1 (Build 0)
   Processor(s)...: 4
   Clock..........: 2400
   Memory.........: 1969/7876 MB allocatable
   OpenCL.Version.: OpenCL C 2.0
   Driver.Version.: 18.1.0.0920

OpenCL Platform ID #2
 Vendor..: NVIDIA Corporation
 Name....: NVIDIA CUDA
 Version.: OpenCL 1.2 CUDA 10.2.120

 Backend Device ID #2
   Type...........: GPU
   Vendor.ID......: 32
   Vendor.........: NVIDIA Corporation
   Name...........: GeForce 920M
   Version........: OpenCL 1.2 CUDA
   Processor(s)...: 2
   Clock..........: 954
   Memory.........: 501/2004 MB allocatable
   OpenCL.Version.: OpenCL C 1.2
   Driver.Version.: 430.14

When I run hashcat with "-d 2" it runs fine on my GPU (but only at ~135kH/s). But when I try to run it on my CPU with "-d 1" it says:

Code:
hashcat (v5.1.0-1138-g581839d4) starting...

* Device #2: CUDA SDK Toolkit installation NOT detected.
            CUDA SDK Toolkit installation required for proper device support and utilization
            Falling back to OpenCL Runtime

No devices found/left.

How could this be? It's actually detecting both devices, it runs on my GPU but when I specify the CPU it says no devices found?
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Token length exception

June 9, 2019, 12:56 pm
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Hi guys.
I do know there are many topics about the problem , but still. Cant find the solution

76e375e35ccca94a 
103A560771D77D81FE96526C97093C7556604357

Mysql hashes. I tried -m 200 , 300 etc but still doesnt work

ashcat --force -m 300 -a 0 /root/HASH/MySQL5.txt /root/HASH/realuniq.lst
hashcat (v5.1.0) starting...

nvmlDeviceGetFanSpeed(): Not Supported

nvmlDeviceGetFanSpeed(): Not Supported

OpenCL Platform #1: NVIDIA Corporation
======================================
* Device #1: GeForce GTX 980M, 2031/8124 MB allocatable, 12MCU
* Device #2: GeForce GTX 980M, 2031/8126 MB allocatable, 12MCU

OpenCL Platform #2: The pocl project
====================================
* Device #3: pthread-Intel(R) Core(TM) i7-6820HK CPU @ 2.70GHz, skipped.

Hash '/root/HASH/MySQL5.txt': Token length exception
No hashes loaded.



Furthermore I tried with https://hashcat.net/wiki/doku.php?id=example_hashes
( 200 MySQL323 7196759210defdc0 )

And got the following:

hashcat --force -m 200 /root/HASH/MySQL5.txt /root/HASH/realuniq.lst
hashcat (v5.1.0) starting...

nvmlDeviceGetFanSpeed(): Not Supported

nvmlDeviceGetFanSpeed(): Not Supported

OpenCL Platform #1: NVIDIA Corporation
======================================
* Device #1: GeForce GTX 980M, 2031/8124 MB allocatable, 12MCU
* Device #2: GeForce GTX 980M, 2031/8126 MB allocatable, 12MCU

OpenCL Platform #2: The pocl project
====================================
* Device #3: pthread-Intel(R) Core(TM) i7-6820HK CPU @ 2.70GHz, skipped.

/usr/share/hashcat/OpenCL/m00200_a0-optimized.cl: Pure OpenCL kernel not found, falling back to optimized OpenCL kernel
Hash '/root/HASH/MySQL5.txt': Token length exception
No hashes loaded.

Dont know what I`m doin` wrong.
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Brain - couple of questions

June 10, 2019, 2:51 am
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Hi
I'm new to this hashcat thing and still learning how to use it properly. Now I do know that I shouldn't use brain functionality NTLM's but what I plan to do is to use couple of computers at my work to use their combined computing power. I'm stryggling to understand how I should use brain (yeah, very funny), so here are the steps that I'm taking to run this:

My first test was to run server and client on the same machine just to see if it works or not.

1. Open ps windows and run

.\hashcat64.exe --brain-server
This will give me the authentication password needed to connect to it
2. Open second ps windows and run the attack
.\hashcat64.exe -m1000 -d1 -a0 D:\hg\Hashes\nthashes.txt  D:\hg\Wordlist\wordlist.txt -r .\rules\best64.rule -r .\rules\generated2.rule -w3 -O --brain-password 6d616d43e14f8e53 --brain-client-features 3
3. I watch the results in the second windows and straight away as I run the command I can see there are lots of Rejected results but shortly after the rejected count drops drastically. Is that how it should work?
4. I run the attack again with the exact same parameters and - if I understand correctly - it should tell me there are 100% rejected straight away, right? Because it doesn't
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MacMini clBuildProgram():CL_BUILD_PROGRAM_FAILURE, amp_a1.cl, with combination attack

June 10, 2019, 9:00 am
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Hello All,

I would be very appreciative of some assistance with this please.

I am getting the following error when attempting a "combination" attack;

Code:
clBuildProgram(): CL_BUILD_PROGRAM_FAILURE

Error: out of memory.

* Device #2: Kernel hashcat-master/OpenCL/amp_a1.cl build failed - proceeding without this device.

My hardware and base OS are a MacMini (late 2012, 2.3GHz i7, 16GB RAM, Intel HD Graphics 4000 1536 MB) with Mojave;
Code:
$ uname -a

Darwin Mac-mini.local 18.6.0 Darwin Kernel Version 18.6.0: Thu Apr 25 23:16:27 PDT 2019; root:xnu-4903.261.4~2/RELEASE_X86_64 x86_64
I have installed the latest version of xcode and compiled hashcat from sources;
Code:
$ ./hashcat -V

v5.1.0

I can run hashcat successfully with the following command line options;

Code:
# Dictionary attack.
../hashcat-master/hashcat -O -a 0 -m 500 -o hashes.txt --potfile-path potfile.txt to-crack.txt ../Passwords/rockyou.txt
../hashcat-master/hashcat -O -a 0 -m 500 -o hashes.txt --potfile-path potfile.txt -r ../hashcat-master/rules/best64.rule to-crack.txt ../Passwords/rockyou.txt
# brute force attack.
../hashcat-master/hashcat -O -a 3 -m 500 -o hashes.txt --potfile-path potfile.txt to-crack-03.txt -i ?a?a?a?a?a

Each of the above attacks runs fine!

However, when I attempt to run a "Combination" attack (I have generated a wordlist with 500 lines, I had originally tried 3000 lines, but that had the same error), I get the error;
Code:
clBuildProgram(): CL_BUILD_PROGRAM_FAILURE

Error: out of memory.

* Device #2: Kernel hashcat-master/OpenCL/amp_a1.cl build failed - proceeding without this device.

my command-line and output are;
Code:
$ ../hashcat-master/hashcat -O -a 1 -m 500 to-crack.txt ../Passwords/EnglishMostCommon-1-500.txt ../Passwords/EnglishMostCommon-2-500.txt
hashcat (v5.1.0) starting...

OpenCL API (OpenCL 1.2 (Apr  7 2019 18:38:19)) - Platform #1 [Apple]
====================================================================
* Device #1: Intel(R) Core(TM) i7-3615QM CPU @ 2.30GHz, skipped
* Device #2: HD Graphics 4000, 384/1536 MB allocatable, 16MCU

Dictionary cache hit:
* Filename..: ../Passwords/EnglishMostCommon-1-500.txt
* Passwords.: 500
* Bytes.....: 3652
* Keyspace..: 500

Dictionary cache hit:
* Filename..: ../Passwords/EnglishMostCommon-2-500.txt
* Passwords.: 500
* Bytes.....: 4200
* Keyspace..: 500

Hashes: 3 digests; 3 unique digests, 3 unique salts
Bitmaps: 16 bits, 65536 entries, 0x0000ffff mask, 262144 bytes, 5/13 rotates

Applicable optimizers:
* Optimized-Kernel
* Zero-Byte

Minimum password length supported by kernel: 0
Maximum password length supported by kernel: 15

Watchdog: Hardware monitoring interface not found on your system.
Watchdog: Temperature abort trigger disabled.

clBuildProgram(): CL_BUILD_PROGRAM_FAILURE

Error: out of memory.

* Device #2: Kernel hashcat-master/OpenCL/amp_a1.cl build failed - proceeding without this device.

Started: Mon Jun 10 09:49:20 2019
Stopped: Mon Jun 10 09:50:48 2019
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hashcat ends without error message

June 10, 2019, 10:03 am
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Hello

i try to run hashcat64.exe on a Windows 10 OS. 

But hashcat ends after the "Initializing OpenCL runtime for device #1..." to command line without any error message.

I went twice trough "I may have the wrong driver installed, what should I do?" I try it with the Crimson 16.11.5 and 17.11.4 without success.



What else am I still trying to do

Thx

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