Overview for linux

Is it possible to crack a password hashed with sha256 with hashcat? [with screenshots]

SHA256 algorithm was invented to generate 256-bit (or 32-byte) hash. They write it will take you several years to crack it. It's true, but there're cases you can brute-force it (for example, with hashcat tool). At least you can try. In this article I'm using openSUSE Linux distro and openCL framework drivers for my NVIDIA GeForce GTX 1060 Mobile graphic card.

Here's an example, how to crack SHA256-hashed password in several minutes using haschat tool.

Let's take a hash of a password, stored in pass.hash file:

$ cat pass.hash

SHA256 password hash

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Written by Administrator on Wednesday May 6, 2020

How to list running services in Devuan Linux (OpenRC)

As you know, Devuan Linux is using a little bit different init system, than other Linux distros. OpenRC is a service manager is a dependency-based init system that works with the system-provided init program.

To list all running services, just run a following command:

$ rc-status

my output:

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Written by Administrator on Tuesday May 5, 2020

How to install tinyproxy on Devuan Linux

Tinyproxy is famous for being light-weight HTTP/HTTPS proxy daemon for POSIX operating systems. It's small and fast application and it is an ideal solution for systems with restricted resources.

Installation is very easy and fast. Just run a following command in terminall:

$ sudo apt-get install tinyproxy

That's all!

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Written by Administrator on Tuesday May 5, 2020

How to brute-force .hccapx file using hashcat (Brute-force attack) in openSUSE Linux [with screenshots]

Once you have captured WPA handshake and you've got .cap file, you have to convert given .cap file to .hccapx file format in order to brute force it. There're a lot of approaches, how to successfully crack wi-fi passwords. You never know, what is the structure of a password a surely you won't have enough equipment to crack a long password. In my case I'm trying to brute-force a password supposing it's only 8 digits long, because I know exactly, that the owner of a modem is using a model, which has by default only 8-digits password.

Yes, there's a possibility, that he configured his wi-fi modem manually and changed a password for more secure one, but there's also a chance he's just using it "as is". My computer will crack 8-digits long password in several minutes and I'm going to try to do it. In case I'm not successful, I will think about using dictionaries, because cracking even 8 character long password (digits, letters, capitals, special symbols) will take me years to crack.

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Written by Administrator on Tuesday May 5, 2020

How to convert .cap into .hccapx using cap2hccapx in openSUSE Linux

First of all you have to install cap2hccapx application on you computer. cap2hccapx is one of the utilities of hashcat-utils tools. Once you got it and you've grabbed .cap file, you just run a following command:

$ sudo ./cap2hccapx.bin /home/dima/hs/HUAWEIE5372F9EE_E2-19-1D-82-F9-EF.cap /home/dima/hs/HUAWEI_5372.hccapx

All you need is cap2hccapx app and .cap file.

Resut of running above mentioned command:

convert .cap to .hccapx in openSUSE Linux

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Written by Administrator on Tuesday May 5, 2020

How to remove (uninstall) simple-scan app from Linux Lite (Ubuntu)?

If you dont' need simple-scan application (known as "Scanner" app in your main menu) in your system, you can easily remove it by running a following command:

$ sudo apt purge simple-scan


Reading package lists... Done
Building dependency tree       
Reading state information... Done
The following packages were automatically installed and are no longer required:
  fonts-hosny-amiri fonts-sil-scheherazade linux-headers-4.15.0-88 linux-headers-4.15.0-88-generic linux-headers-4.15.0-91
  linux-headers-4.15.0-91-generic linux-image-4.15.0-88-generic linux-image-4.15.0-91-generic linux-modules-4.15.0-88-generic
  linux-modules-4.15.0-91-generic linux-modules-extra-4.15.0-88-generic linux-modules-extra-4.15.0-91-generic
Use 'sudo apt autoremove' to remove them.
The following packages will be REMOVED:
0 upgraded, 0 newly installed, 1 to remove and 0 not upgraded.
After this operation, 1,303 kB disk space will be freed.
Do you want to continue? [Y/n] y
(Reading database ... 391612 files and directories currently installed.)
Removing simple-scan (3.28.0-0ubuntu1) ...
Processing triggers for desktop-file-utils (0.23-1ubuntu3.18.04.2) ...
Processing triggers for libglib2.0-0:i386 (2.56.4-0ubuntu0.18.04.6) ...
Processing triggers for libglib2.0-0:amd64 (2.56.4-0ubuntu0.18.04.6) ...
Processing triggers for man-db (2.8.3-2ubuntu0.1) ...
Processing triggers for gnome-menus (3.13.3-11ubuntu1.1) ...
Processing triggers for mime-support (3.60ubuntu1) ...

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Written by Administrator on Tuesday May 5, 2020