Excel Protected Workbook Known PW Length

[HelmanFrow]

Also interesting:

Here's the Iris redlining and barely putting out 80 H/s:



Versus the Quadro M1000M working at 980 H/s:


The Quadro is barely breaking a sweat! I've been watching it hover around 1% for the last hour. What gives? Does this mean the Quadro can run even faster with some tweaking? Should I be expecting performance in the MH/s?

[Snoopy]

windows taskmanger doesnt show the real work on your GPU, stick to the utilisation % hashcat tells you

second
spreadsheet or worksheet? there are some real easy ways to "delete" the password if it is this new style XLSX, just involving 7zip and editor

third
if you are able to open the excel worksheet you can also use a makro to "crack" your PW

Code:

Sub BlattschutzEntfernen()
On Error Resume Next
For i = 65 To 66: For j = 65 To 66
For k = 65 To 66: For l = 65 To 66
For m = 65 To 66: For n = 65 To 66
For o = 65 To 66: For p = 65 To 66
For q = 65 To 66: For r = 65 To 66
For s = 65 To 66: For t = 32 To 126
ActiveSheet.Unprotect Chr(i) & _
Chr(j) & Chr(k) & Chr(l) & _
Chr(m) & Chr(n) & Chr(o) & _
Chr(p) & Chr(q) & Chr(r) & _
Chr(s) & Chr(t)
Next t: Next s: Next r: Next q
Next p: Next o: Next n: Next m
Next l: Next k: Next j: Next i
MsgBox "Blattschutz aufgehoben"
End Sub

[HelmanFrow]

windows taskmanger doesnt show the real work on your GPU, stick to the utilisation % hashcat tells you

Ah, that's weird and mildly annoying.

second
spreadsheet or worksheet? there are some real easy ways to "delete" the password if it is this new style XLSX, just involving 7zip and editor

third
if you are able to open the excel worksheet you can also use a makro to "crack" your PW

I can't open the file at all without the password.
I used this option:



I tried the ZIP trick but the file is properly encrypted. Changing the extension does not produce a valid ZIP archive.

Code:

Sub BlattschutzEntfernen()
On Error Resume Next
For i = 65 To 66: For j = 65 To 66
For k = 65 To 66: For l = 65 To 66
For m = 65 To 66: For n = 65 To 66
For o = 65 To 66: For p = 65 To 66
For q = 65 To 66: For r = 65 To 66
For s = 65 To 66: For t = 32 To 126
ActiveSheet.Unprotect Chr(i) & _
Chr(j) & Chr(k) & Chr(l) & _
Chr(m) & Chr(n) & Chr(o) & _
Chr(p) & Chr(q) & Chr(r) & _
Chr(s) & Chr(t)
Next t: Next s: Next r: Next q
Next p: Next o: Next n: Next m
Next l: Next k: Next j: Next i
MsgBox "Blattschutz aufgehoben"
End Sub

I'm afraid I don't know what this is.

[HelmanFrow]

What else can I do to get my GPU working?

[Snoopy]

your GPU (Quadro M1000) ) WAS WORKING at ~1000 H/s

this is my speed with two old TI 1050

Speed.#1.........:    2821 H/s (58.57ms) @ Accel:256 Loops:64 Thr:1024 Vec:1
Speed.#2.........:    2764 H/s (59.98ms) @ Accel:64 Loops:256 Thr:1024 Vec:1
Speed.#*.........:    5585 H/s

so dont expect more speed than 1000 H/s from a laptop card like yours

this is my speed with an Intel Xeon 2.1 GHz

Speed.#1.........:    1920 H/s (5.35ms) @ Accel:1024 Loops:1024 Thr:1 Vec:4

dont use Intel Integrated GPU (your device 3, the opencl runtime for gpu from intel is broken as sh*t) if you want to use opencl on CPU you will need to uninstall Intel UHD graphics (see windows programms) and install ONLY opencl for cpu

*ttp://registrationcenter-download.intel.com/akdlm/irc_nas/vcp/13794/opencl_runtime_18.1_x64_setup.msi
see this thread, the initializing problems are 99% using broken intel opencl for GPU or old opencl for cpu

https://hashcat.net/forum/thread-9662-po...l#pid54917

hashcat -I should tell you somehing at least like
Cuda 11.5 for Quadro
and opencl 2.1 for your CPU (the integrated gpu wont show up if your setup is right)

then you can use option -D1,2 to use Quadro and CPU