I am running Windows 7 SP1.
I have installed CygWin with OpenSSH, so now I have a running SSH Daemon that seems to be working OK, except for a problem with an interactive command-line program that requires keystrokes to be managed.
This is the program (OCLHashCat, a GPU number cruncher):
D:\Temporal\>d:\Programas\HashCat\OCLHashCat\oclhashcat64.exe Test.hccap -m 2500 -a 3 ?d?d?d?d?d?d?d?d | tee Resultado.txt oclHashcat v1.31 starting... WARN: ADL_Overdrive6_FanSpeed_Get(): -5 Device #1: Bonaire, 1024MB, 1050Mhz, 12MCU Device #2: Tahiti, 3072MB, 900Mhz, 28MCU Hashes: 1 hashes; 1 unique digests, 1 unique salts Bitmaps: 8 bits, 256 entries, 0x000000ff mask, 1024 bytes Applicable Optimizers: * Zero-Byte * Single-Hash * Single-Salt * Brute-Force Watchdog: Temperature abort trigger set to 90c Watchdog: Temperature retain trigger set to 80c Device #1: Kernel d:\Programas\HashCat\OCLHashCat/kernels/4098/m02500.Bonaire_1573.4_1573.4 (VM).kernel (259320 bytes) Device #1: Kernel d:\Programas\HashCat\OCLHashCat/kernels/4098/markov_le_v1.Bonaire_1573.4_1573.4 (VM).kernel (92404 bytes) Device #1: Kernel d:\Programas\HashCat\OCLHashCat/kernels/4098/bzero.Bonaire_1573.4_1573.4 (VM).kernel (30496 bytes) Device #2: Kernel d:\Programas\HashCat\OCLHashCat/kernels/4098/m02500.Tahiti_1573.4_1573.4 (VM).kernel (259428 bytes) Device #2: Kernel d:\Programas\HashCat\OCLHashCat/kernels/4098/markov_le_v1.Tahiti_1573.4_1573.4 (VM).kernel (92388 bytes) Device #2: Kernel d:\Programas\HashCat\OCLHashCat/kernels/4098/bzero.Tahiti_1573.4_1573.4 (VM).kernel (30492 bytes) [s]tatus [p]ause [r]esume [b]ypass [q]uit => s q qStopped Luis-@Windu /cygdrive/d/Temporal/ $
As you can see, I tried by pressing s and q , but the interactive program did not respond to keystrokes until I did Ctrl+C.
Furthermore, the process
oclhashcat64.exe remained in memory, and I had to kill it manually.
I have checked with these SSH clients; I think all of them are in their latest version:
- GNU SSH command line tool (included in modern Ubuntu, for example).
- Bitvise SSH Client.
I have installed (on another TCP port) the Bitvise SSH server too, and I don’t have this keystrokes problem using it, so it could be some sort of OpenSSH matter.
The issue is I need access to CygWin’s commands, so I need to connect via the OpenSSH version installed within CygWin. The Bitvise is one only gives me access to CMD Shell or PowerShell.
I can not try this OCLHashCat program in another computer or operating system, due to it requires GPU high-end devices, perfect drivers configuration, etc…
How could I solve the keystroke issue?