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+--- Thread: m02500_aux1nullGBE): error: failed in Gen backend. (/thread-8781.html)
m02500_aux1nullGBE): error: failed in Gen backend. - deco9876 - 11-21-2019
Hello guys and gals. I'm tearing my hair out trying to get hashcat up and running on my bootable usb drive. I have included the command I am trying to run, also the same command with --force as well as the output in both cases...please help me! I am fairly new to linux, but I am very keen to learn. I have read through the faq's and they seem to suggest that I don't need to use my GPU but on the home page of this website (hashcat.net) their are recommended requirements for both Intel GPU and CPU. I am running The-Distribution-Which-Does-Not-Handle-OpenCL-Well (The-Distribution-Which-Does-Not-Handle-OpenCL-Well (Kali)) rolling on my usb on a windows 7 hp elitebook 8750. It has an i5 core processor and 8G of RAM. Output follows:
_____________________________________________________________________________________________
Without --force
--------------------
root@The-Distribution-Which-Does-Not-Handle-OpenCL-Well (The-Distribution-Which-Does-Not-Handle-OpenCL-Well (Kali)):~# hashcat -m 2500 -a 3 -i --increment-min 8 --increment-max 10 /root/Downloads/24880_1572835516.hccapx ?a?a?a?a?a?a?a?a?a?a
hashcat (v5.1.0) starting...
* Device #1: Intel's OpenCL runtime (GPU only) is currently broken.
We are waiting for updated OpenCL drivers from Intel.
You can use --force to override, but do not report related errors.
* Device #2: Not a native Intel OpenCL runtime. Expect massive speed loss.
You can use --force to override, but do not report related errors.
No devices found/left.
Started: Wed Nov 20 19:26:21 2019
Stopped: Wed Nov 20 19:26:21 2019
_____________________________________________________________________________________________
With --force
----------------
root@The-Distribution-Which-Does-Not-Handle-OpenCL-Well (The-Distribution-Which-Does-Not-Handle-OpenCL-Well (Kali)):~# hashcat -m 2500 -a 3 -i --increment-min 8 --increment-max 10 /root/Downloads/24880_1572835516.hccapx ?a?a?a?a?a?a?a?a?a?a --force
hashcat (v5.1.0) starting...
OpenCL Platform #1: Intel
=========================
* Device #1: Intel(R) HD Graphics IvyBridge M GT2, 1422/1897 MB allocatable, 16MCU
OpenCL Platform #2: The pocl project
====================================
* Device #2: pthread-Intel(R) Core(TM) i5-3360M CPU @ 2.80GHz, skipped.
Hashes: 2 digests; 1 unique digests, 1 unique salts
Bitmaps: 16 bits, 65536 entries, 0x0000ffff mask, 262144 bytes, 5/13 rotates
Applicable optimizers:
* Zero-Byte
* Single-Hash
* Single-Salt
* Brute-Force
* Slow-Hash-SIMD-LOOP
Minimum password length supported by kernel: 8
Maximum password length supported by kernel: 63
Watchdog: Hardware monitoring interface not found on your system.
Watchdog: Temperature abort trigger disabled.
* Device #1: build_opts '-cl-std=CL1.2 -I OpenCL -I /usr/share/hashcat/OpenCL -D LOCAL_MEM_TYPE=1 -D VENDOR_ID=4 -D CUDA_ARCH=0 -D AMD_ROCM=0 -D VECT_SIZE=1 -D DEVICE_TYPE=4 -D DGST_R0=0 -D DGST_R1=1 -D DGST_R2=2 -D DGST_R3=3 -D DGST_ELEM=4 -D KERN_TYPE=2500 -D _unroll'
* Device #1: Kernel m02500-pure.8e78a544.kernel not found in cache! Building may take a while...
clBuildProgram(): CL_BUILD_PROGRAM_FAILURE
m02500_aux1nullGBE): error: failed in Gen backend.
* Device #1: Kernel /usr/share/hashcat/OpenCL/m02500-pure.cl build failed - proceeding without this device.
Started: Wed Nov 20 19:05:57 2019
Stopped: Wed Nov 20 19:06:42 2019
_____________________________________________________________________________________________
clinfo output
-----------------
root@The-Distribution-Which-Does-Not-Handle-OpenCL-Well (Kali):~# clinfo
Number of platforms 2
Platform Name Intel Gen OCL Driver
Platform Vendor Intel
Platform Version OpenCL 1.2 beignet 1.3
Platform Profile FULL_PROFILE
Platform Extensions cl_khr_global_int32_base_atomics cl_khr_global_int32_extended_atomics cl_khr_local_int32_base_atomics cl_khr_local_int32_extended_atomics cl_khr_byte_addressable_store cl_khr_3d_image_writes cl_khr_image2d_from_buffer cl_khr_depth_images cl_khr_spir cl_khr_icd cl_intel_accelerator cl_intel_subgroups cl_intel_subgroups_short cl_khr_gl_sharing
Platform Extensions function suffix Intel
Platform Name Portable Computing Language
Platform Vendor The pocl project
Platform Version OpenCL 1.2 pocl 1.3 None+Asserts, LLVM 8.0.1, SPIR, SLEEF, POCL_DEBUG
Platform Profile FULL_PROFILE
Platform Extensions cl_khr_icd
Platform Extensions function suffix POCL
Platform Name Intel Gen OCL Driver
Number of devices 1
Device Name Intel(R) HD Graphics IvyBridge M GT2
Device Vendor Intel
Device Vendor ID 0x8086
Device Version OpenCL 1.2 beignet 1.3
Driver Version 1.3
Device OpenCL C Version OpenCL C 1.2 beignet 1.3
Device Type GPU
Device Profile FULL_PROFILE
Device Available Yes
Compiler Available Yes
Linker Available Yes
Max compute units 16
Max clock frequency 1000MHz
Device Partition (core)
Max number of sub-devices 1
Supported partition types None, None, None
Supported affinity domains (n/a)
Max work item dimensions 3
Max work item sizes 512x512x512
Max work group size 512
Preferred work group size multiple 16
Preferred / native vector sizes
char 16 / 8
short 8 / 8
int 4 / 4
long 2 / 2
half 0 / 8 (n/a)
float 4 / 4
double 0 / 2 (n/a)
Half-precision Floating-point support (n/a)
Single-precision Floating-point support (core)
Denormals No
Infinity and NANs Yes
Round to nearest Yes
Round to zero No
Round to infinity No
IEEE754-2008 fused multiply-add No
Support is emulated in software No
Correctly-rounded divide and sqrt operations No
Double-precision Floating-point support (n/a)
Address bits 32, Little-Endian
Global memory size 1989148672 (1.853GiB)
Error Correction support No
Max memory allocation 1491075072 (1.389GiB)
Unified memory for Host and Device Yes
Minimum alignment for any data type 128 bytes
Alignment of base address 1024 bits (128 bytes)
Global Memory cache type Read/Write
Global Memory cache size 8192 (8KiB)
Global Memory cache line size 64 bytes
Image support Yes
Max number of samplers per kernel 16
Max size for 1D images from buffer 65536 pixels
Max 1D or 2D image array size 2048 images
Base address alignment for 2D image buffers 4096 bytes
Pitch alignment for 2D image buffers 1 pixels
Max 2D image size 8192x8192 pixels
Max 3D image size 8192x8192x2048 pixels
Max number of read image args 128
Max number of write image args 8
Local memory type Local
Local memory size 65536 (64KiB)
Max number of constant args 8
Max constant buffer size 134217728 (128MiB)
Max size of kernel argument 1024
Queue properties
Out-of-order execution No
Profiling Yes
Prefer user sync for interop Yes
Profiling timer resolution 80ns
Execution capabilities
Run OpenCL kernels Yes
Run native kernels Yes
SPIR versions 1.2
printf() buffer size 1048576 (1024KiB)
Built-in kernels __cl_copy_region_align4;__cl_copy_region_align16;__cl_cpy_region_unalign_same_offset;__cl_copy_region_unalign_dst_offset;__cl_copy_region_unalign_src_offset;__cl_copy_buffer_rect;__cl_copy_image_1d_to_1d;__cl_copy_image_2d_to_2d;__cl_copy_image_3d_to_2d;__cl_copy_image_2d_to_3d;__cl_copy_image_3d_to_3d;__cl_copy_image_2d_to_buffer;__cl_copy_image_3d_to_buffer;__cl_copy_buffer_to_image_2d;__cl_copy_buffer_to_image_3d;__cl_fill_region_unalign;__cl_fill_region_align2;__cl_fill_region_align4;__cl_fill_region_align8_2;__cl_fill_region_align8_4;__cl_fill_region_align8_8;__cl_fill_region_align8_16;__cl_fill_region_align128;__cl_fill_image_1d;__cl_fill_image_1d_array;__cl_fill_image_2d;__cl_fill_image_2d_array;__cl_fill_image_3d;block_motion_estimate_intel;
Device Extensions cl_khr_global_int32_base_atomics cl_khr_global_int32_extended_atomics cl_khr_local_int32_base_atomics cl_khr_local_int32_extended_atomics cl_khr_byte_addressable_store cl_khr_3d_image_writes cl_khr_image2d_from_buffer cl_khr_depth_images cl_khr_spir cl_khr_icd cl_intel_accelerator cl_intel_subgroups cl_intel_subgroups_short cl_khr_gl_sharing cl_intel_motion_estimation
Platform Name Portable Computing Language
Number of devices 1
Device Name pthread-Intel(R) Core(TM) i5-3360M CPU @ 2.80GHz
Device Vendor GenuineIntel
Device Vendor ID 0x6c636f70
Device Version OpenCL 1.2 pocl HSTR: pthread-i686-pc-linux-gnu-i686
Driver Version 1.3
Device OpenCL C Version OpenCL C 1.2 pocl
Device Type CPU
Device Profile FULL_PROFILE
Device Available Yes
Compiler Available Yes
Linker Available Yes
Max compute units 4
Max clock frequency 3500MHz
Device Partition (core)
Max number of sub-devices 4
Supported partition types equally, by counts
Supported affinity domains (n/a)
Max work item dimensions 3
Max work item sizes 4096x4096x4096
Max work group size 4096
Preferred work group size multiple 8
Preferred / native vector sizes
char 16 / 16
short 16 / 16
int 8 / 8
long 4 / 4
half 0 / 0 (n/a)
float 8 / 8
double 4 / 4 (cl_khr_fp64)
Half-precision Floating-point support (n/a)
Single-precision Floating-point support (core)
Denormals No
Infinity and NANs Yes
Round to nearest Yes
Round to zero No
Round to infinity No
IEEE754-2008 fused multiply-add No
Support is emulated in software No
Correctly-rounded divide and sqrt operations No
Double-precision Floating-point support (cl_khr_fp64)
Denormals Yes
Infinity and NANs Yes
Round to nearest Yes
Round to zero Yes
Round to infinity Yes
IEEE754-2008 fused multiply-add Yes
Support is emulated in software No
Address bits 32, Little-Endian
Global memory size 4294967295 (4GiB)
Error Correction support No
Max memory allocation 1073741824 (1024MiB)
Unified memory for Host and Device Yes
Minimum alignment for any data type 128 bytes
Alignment of base address 1024 bits (128 bytes)
Global Memory cache type Read/Write
Global Memory cache size 3145728 (3MiB)
Global Memory cache line size 64 bytes
Image support Yes
Max number of samplers per kernel 16
Max size for 1D images from buffer 67108864 pixels
Max 1D or 2D image array size 2048 images
Max 2D image size 8192x8192 pixels
Max 3D image size 2048x2048x2048 pixels
Max number of read image args 128
Max number of write image args 128
Local memory type Global
Local memory size 2097152 (2MiB)
Max number of constant args 8
Max constant buffer size 2097152 (2MiB)
Max size of kernel argument 1024
Queue properties
Out-of-order execution No
Profiling Yes
Prefer user sync for interop Yes
Profiling timer resolution 1ns
Execution capabilities
Run OpenCL kernels Yes
Run native kernels Yes
SPIR versions 1.2
printf() buffer size 16777216 (16MiB)
Built-in kernels (n/a)
Device Extensions cl_khr_byte_addressable_store cl_khr_global_int32_base_atomics cl_khr_global_int32_extended_atomics cl_khr_local_int32_base_atomics cl_khr_local_int32_extended_atomics cl_khr_3d_image_writes cl_khr_spir cl_khr_fp64 cl_khr_int64_base_atomics cl_khr_int64_extended_atomics cl_khr_fp64
NULL platform behavior
clGetPlatformInfo(NULL, CL_PLATFORM_NAME, ...) Intel Gen OCL Driver
clGetDeviceIDs(NULL, CL_DEVICE_TYPE_ALL, ...) Success [Intel]
clCreateContext(NULL, ...) [default] Success [Intel]
clCreateContext(NULL, ...) [other] Success [POCL]
clCreateContextFromType(NULL, CL_DEVICE_TYPE_DEFAULT) Success (1)
Platform Name Intel Gen OCL Driver
Device Name Intel(R) HD Graphics IvyBridge M GT2
clCreateContextFromType(NULL, CL_DEVICE_TYPE_CPU) No devices found in platform
clCreateContextFromType(NULL, CL_DEVICE_TYPE_GPU) Success (1)
Platform Name Intel Gen OCL Driver
Device Name Intel(R) HD Graphics IvyBridge M GT2
clCreateContextFromType(NULL, CL_DEVICE_TYPE_ACCELERATOR) No devices found in platform
clCreateContextFromType(NULL, CL_DEVICE_TYPE_CUSTOM) No devices found in platform
clCreateContextFromType(NULL, CL_DEVICE_TYPE_ALL) Success (1)
Platform Name Intel Gen OCL Driver
Device Name Intel(R) HD Graphics IvyBridge M GT2
ICD loader properties
ICD loader Name OpenCL ICD Loader
ICD loader Vendor OCL Icd free software
ICD loader Version 2.2.12
ICD loader Profile OpenCL 2.2
This is all the output I think is relevant. I would appreciate any useful comments, help or pointing out of my faults. As I said above I am keen to learn but I don't know where I am going wrong. PLEASE HELP ME!!!!
RE: m02500_aux1nullGBE): error: failed in Gen backend. - slyexe - 11-21-2019
Good luck cracking WPA2 on that laptop. All I have to say.
Session..........: hashcat
Status...........: Running
Hash.Type........: WPA-PMKID-PBKDF2
Hash.Target......: example.16800
Time.Started.....: Wed Nov 20 20:59:48 2019 (0 secs)
Time.Estimated...: Next Big Bang (> 10 years)
Guess.Mask.......: ?a?a?a?a?a?a?a?a [8]
Guess.Queue......: 1/3 (33.33%)
Speed.#1.........: 261.0 kH/s (6.93ms) @ Accel:64 Loops:32 Thr:256 Vec:1
Recovered........: 0/1 (0.00%) Digests, 0/1 (0.00%) Salts
Progress.........: 0/59707838816015625 (0.00%)
Rejected.........: 0/0 (0.00%)
Restore.Point....: 0/69833729609375 (0.00%)
Restore.Sub.#1...: Salt:0 Amplifier:0-1 Iteration:576-608
Candidates.#1....: sarierin -> s`fperin
Hardware.Mon.#1..: Temp: 35c Fan: 23% Util: 82% Core:1759MHz Mem:4104MHz Bus:16
RE: m02500_aux1nullGBE): error: failed in Gen backend. - undeath - 11-21-2019
you should remove pocl and install the intel opencl cpu runtime
RE: m02500_aux1nullGBE): error: failed in Gen backend. - deco9876 - 11-22-2019
(11-21-2019, 07:57 PM)undeath Wrote: you should remove pocl and install the intel opencl cpu runtime
Thank you undeath for your advice. i will have to look into how to remove the pocl.
RE: m02500_aux1nullGBE): error: failed in Gen backend. - deco9876 - 11-22-2019
(11-21-2019, 05:02 AM)slyexe Wrote: Good luck cracking WPA2 on that laptop. All I have to say.
Session..........: hashcat
Status...........: Running
Hash.Type........: WPA-PMKID-PBKDF2
Hash.Target......: example.16800
Time.Started.....: Wed Nov 20 20:59:48 2019 (0 secs)
Time.Estimated...: Next Big Bang (> 10 years)
Guess.Mask.......: ?a?a?a?a?a?a?a?a [8]
Guess.Queue......: 1/3 (33.33%)
Speed.#1.........: 261.0 kH/s (6.93ms) @ Accel:64 Loops:32 Thr:256 Vec:1
Recovered........: 0/1 (0.00%) Digests, 0/1 (0.00%) Salts
Progress.........: 0/59707838816015625 (0.00%)
Rejected.........: 0/0 (0.00%)
Restore.Point....: 0/69833729609375 (0.00%)
Restore.Sub.#1...: Salt:0 Amplifier:0-1 Iteration:576-608
Candidates.#1....: sarierin -> s`fperin
Hardware.Mon.#1..: Temp: 35c Fan: 23% Util: 82% Core:1759MHz Mem:4104MHz Bus:16
Thank you too slyexe. this is just an example of the wpa cracking I could run. I have lots of other rules and wordlists I could use to help slim down the amount of time it will take to crack my wpa psk. The command I gave in the example was just for illustrative purposes. I appreciate your warning though. Hypothetically, if I did want to run the example command, what type of GPU/CPU combination would you recommend to get down to a reasonable time...lets say under a month.
RE: m02500_aux1nullGBE): error: failed in Gen backend. - slyexe - 11-23-2019
I rarely run anything over a day attempting anything with WPA2. There's plenty of resources online regarding default router passwords, keygens, generic passwords, and several other factors that you can look up before even attempting to start attacking WPA2.
Just look up ISP's information and lots of time they'll have router labels which include the PSK for your baseline. Searching used markets (ebay) for the same router can always give pictures of the labels too which will give you examples of what the default passwords will be. Most commonly people tend to use phone numbers so creating a 6 digit brute force attack literally takes me 5 seconds since we only have 1 areacode. Theres lots of details I could go into but these are just some of my strategies which give good results and shorten attacks by a huge margin.
Here's our forum post regarding default passwords for routers.
Lastly, a bunch of precise short attacks are smarter than 1 long attack.
RE: m02500_aux1nullGBE): error: failed in Gen backend. - deco9876 - 11-23-2019
(11-23-2019, 02:24 AM)slyexe Wrote: I rarely run anything over a day attempting anything with WPA2. There's plenty of resources online regarding default router passwords, keygens, generic passwords, and several other factors that you can look up before even attempting to start attacking WPA2.
Just look up ISP's information and lots of time they'll have router labels which include the PSK for your baseline. Searching used markets (ebay) for the same router can always give pictures of the labels too which will give you examples of what the default passwords will be. Most commonly people tend to use phone numbers so creating a 6 digit brute force attack literally takes me 5 seconds since we only have 1 areacode. Theres lots of details I could go into but these are just some of my strategies which give good results and shorten attacks by a huge margin.
Here's our forum post regarding default passwords for routers.
Lastly, a bunch of precise short attacks are smarter than 1 long attack.
Thanks again slyexe. All very sound advice. Regarding my setup, do I definitely need to uninstall or purge pocl? Then do I need to Install Intel OpenCL runtime? If so can you help me with specific commands for this? The Intel website is VERY complicated and mostly brings the user around in circles to a page with a diagram of a quad CPU chip with a Graphics card below it. I don't know which opencl to install or where to find it. On the Intel site there is something called SDK for opencl applications. To confuse matters even more there is something called Intel media server studio
RE: m02500_aux1nullGBE): error: failed in Gen backend. - undeath - 11-23-2019
I'm not entirely sure about whether you need to remove pocl, but I'd recommend to anyway. Here are the intel opencl runtime install intstructions: https://github.com/intel/compute-runtime/blob/master/documentation/Neo_in_distributions.md