HOW TO CAPTURE SCREENSHOT IN KALI LINUX? – KALI LINUX TUTORIAL

Kali Linux has been the most advanced penetration testing machine introduced yet. It has the most valuable tools used for every sort of hacking. To take advantage of Kali Linux hacking tools, you have to switch your OS to Kali Linux. You can either install Kali Linux as your default OS or just install as a virtual machine within the same OS. You can learn more about how to install Kali Linux Virtualbox. Today in this tutorial, I am just going to share a very simple Kali Linux tutorial on how to capture screenshot in Kali Linux. It's very simple and newbie friendly.

SO, HOW TO CAPTURE SCREENSHOT IN KALI LINUX? – KALI LINUX TUTORIAL

There are two ways to capture a screenshot in Kali Linux. One is the ultimate easy one and the second one is a bit complex but it's also not so complicated. So, don't worry about anything.

INSTRUCTIONS TO FOLLOW

• In a first way, you can take a screenshot in a similar way as you take in Windows OS by simply clicking the PrntScr button on the keyboard. As you hit that button, a screenshot will be saved in the Pictures folder of your Kali Linux. The major problem with it, it only captures the full screen. We have no control over it to capture a specific window or region.
• The second way is to take a screenshot using the command. For that, open up a terminal in the Kali Linux and type apt-get install ImageMagick.
• Once the command is completed and ImageMagick is installed. We have two options to take a screenshot with it. One is to capture full screen and second is to capture a specific window.
• To capture full screen, type import -window root Pictures/AnyNameOfTheImage.png in the terminal. It will take a full screenshot and will save it to the Pictures directory by the name you specify. Make sure to type .png  at the end of the file name.
• To take a screenshot of a specific window or region, type import Pictures/AnyNameOfTheImage.png in the terminal and hit Enter, it will turn the cursor to a selection tool. You just click the mouse button and select the area you want to capture. As you will leave the mouse key, screenshot will be saved in the Pictures folder.

That's all how you can capture screenshot in Kali Linux. This is a very simple and beginner-friendly Kali Linux tutorial to help out all the newbies how they can use this features in need. Hope it will be useful for you.

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Chapter 1To 5 HTML

Contents

 

About

 

................................................................................................................................................................................... 1

 

Chapter 1: Getting started with HTML

 

................................................................................................................ 2

 

Section 1.1: Hello World 2

 

Chapter 2: Doctypes

 

.................................................................................................................................................... 4

 

Section 2.1: Adding the Doctype 4

Section 2.2: HTML 5 Doctype 4

 

Chapter 3: Headings

 

.................................................................................................................................................... 5

 

Section 3.1: Using Headings 5

 

Chapter 4: Paragraphs

 

.............................................................................................................................................. 6

 

Section 4.1: HTML Paragraphs

Chapter 5: Text Formatting

 

.....................................................................................................................................  6

.....................................................................................................................................  7

 

Section 5.1: Highlighting 7

Section 5.2: Bold, Italic, and Underline 7

Section 5.3: Abbreviation 8

Section 5.4: Inserted, Deleted, or Stricken 8

Section 5.5: Superscript and Subscript 8

 

Chapter 1: Getting started with HTML

Version Specification Release Date

1.0 N/A 1994-01-01

2.0 RFC 1866

1995-11-24

3.2 W3C: HTML 3.2 Specification

1997-01-14

4.0 W3C: HTML 4.0 Specification

1998-04-24

4.01 W3C: HTML 4.01 Specification

1999-12-24

5 WHATWG: HTML Living Standard

2014-10-28

5.1 W3C: HTML 5.1 Specification

2016-11-01

Section 1.1: Hello World

Introduction

HTML (Hypertext Markup Language) uses a markup system composed of elements which represent specific content. Markup means that with HTML you declare what is presented to a viewer, not how it is presented. Visual representations are defined by Cascading Style Sheets (CSS) and realized by browsers. Still existing elements that allow for such, like e.g. font, "are entirely obsolete, and must not be used by authors"[1].

HTML is sometimes called a programming language but it has no logic, so is a markup language. HTML tags provide semantic meaning and machine-readability to the content in the page.

An element usually consists of an opening tag (<element_name>), a closing tag (</element_name>), which contain the element's name surrounded by angle brackets, and the content in between:

<element_name>...content...</element_name>

There are some HTML elements that don't have a closing tag or any contents. These are called void elements. Void elements include <img>, <meta>, <link> and <input>.

Element names can be thought of as descriptive keywords for the content they contain, such as video, audio, table, footer.

A HTML page may consist of potentially hundreds of elements which are then read by a web browser, interpreted and rendered into human readable or audible content on the screen.

For this document it is important to note the difference between elements and tags:

Elements: video, audio, table, footer

Tags: <video>, <audio>, <table>, <footer>, </html>, </body>

Element insight

Let's break down a tag...

The <p> tag represents a common paragraph.

Elements commonly have an opening tag and a closing tag. The opening tag contains the element's name in angle brackets (<p>). The closing tag is identical to the opening tag with the addition of a forward slash (/) between the opening bracket and the element's name (</p>).

Content can then go between these two tags: <p>This is a simple paragraph.</p>.

 

Creating a simple page

The following HTML example creates a simple "Hello World" web page.

HTML files can be created using any text editor. The files must be saved with a .html or .htm[2] extension in order to be recognized as HTML files.

Once created, this file can be opened in any web browser.

Simple page break down

These are the tags used in the example:

Tag Meaning

<!DOCTYPE> Defines the HTML version used in the document. In this case it is HTML5.

See the doctypes topic for more information.

Opens the page. No markup should come after the closing tag (</html>). The lang attribute declares

 

<html>

<head>

<meta>

 

the primary language of the page using the ISO language codes (en for English). See the Content Language topic for more information.

Opens the head section, which does not appear in the main browser window but mainly contains information about the HTML document, called metadata. It can also contain imports from external stylesheets and scripts. The closing tag is </head>.

Gives the browser some metadata about the document. The charset attribute declares the character encoding. Modern HTML documents should always use UTF-8, even though it is not a requirement. In HTML, the <meta> tag does not require a closing tag.

See the Meta topic for more information.

 

<title> The title of the page. Text written between this opening and the closing tag (</title>) will be displayed on the tab of the page or in the title bar of the browser.

<body> Opens the part of the document displayed to users, i.e. all the visible or audible content of a page. No content should be added after the closing tag </body>.

<h1> A level 1 heading for the page.

See headings for more information.

<p> Represents a common paragraph of text.

1. ↑ HTML5, 11.2 Non-conforming features

2. ↑ .htm is inherited from the legacy DOS three character file extension limit.

 

Chapter 2: Doctypes

Doctypes - short for 'document type' - help browsers to understand the version of HTML the document is written in for better interpretability. Doctype declarations are not HTML tags and belong at the very top of a document. This topic explains the structure and declaration of various doctypes in HTML.

Section 2.1: Adding the Doctype

The <!DOCTYPE> declaration should always be included at the top of the HTML document, before the <html> tag.

Version ≥ 5

See HTML 5 Doctype for details on the HTML 5 Doctype.

Section 2.2: HTML 5 Doctype

HTML5 is not based on SGML (Standard Generalized Markup Language), and therefore does not require a reference to a DTD (Document Type Definition).

HTML 5 Doctype declaration:

Case Insensitivity

Per the W3.org HTML 5 DOCTYPE Spec:

A DOCTYPE must consist of the following components, in this order:

1. A string that is an ASCII case-insensitive match for the string "<!DOCTYPE".

therefore the following DOCTYPEs are also valid:

This SO article discusses the topic extensively: Uppercase or lowercase doctype?

 

Chapter 3: Headings

HTML provides not only plain paragraph tags, but six separate header tags to indicate headings of various sizes and thicknesses. Enumerated as heading 1 through heading 6, heading 1 has the largest and thickest text while heading 6 is the smallest and thinnest, down to the paragraph level. This topic details proper usage of these tags.

Section 3.1: Using Headings

Headings can be used to describe the topic they precede and they are defined with the <h1> to <h6> tags. Headings support all the global attributes.

<h1> defines the most important heading.

<h6> defines the least important heading.

Defining a heading:

Correct structure matters

Search engines and other user agents usually index page content based on heading elements, for example to create a table of contents, so using the correct structure for headings is important.

In general, an article should have one h1 element for the main title followed by h2 subtitles – going down a layer if necessary. If there are h1 elements on a higher level they shoudn't be used to describe any lower level content.

Example document (extra intendation to illustrate hierarchy):

 

Chapter 4: Paragraphs

Column Column

<p> Defines a paragraph

<br> Inserts a single line break

<pre> Defines pre-formatted text

Paragraphs are the most basic HTML element. This topic explains and demonstrates the usage of the paragraph element in HTML.

Section 4.1: HTML Paragraphs

The HTML <p> element defines a paragraph:

Display-

You cannot be sure how HTML will be displayed.

Large or small screens, and resized windows will create different results.

With HTML, you cannot change the output by adding extra spaces or extra lines in your HTML code. The browser will remove any extra spaces and extra lines when the page is displayed:

 

Chapter 5: Text Formatting

While most HTML tags are used to create elements, HTML also provides in-text formatting tags to apply specific text-related styles to portions of text. This topic includes examples of HTML text formatting such as highlighting, bolding, underlining, subscript, and stricken text

Section 5.1: Highlighting

The <mark> element is new in HTML5 and is used to mark or highlight text in a document "due to its relevance in another context".1

The most common example would be in the results of a search were the user has entered a search query and results are shown highlighting the desired query.

Output:

A common standard formatting is black text on a yellow background, but this can be changed with CSS.

Section 5.2: Bold, Italic, and Underline

Bold Text

To bold text, use the <strong> or <b> tags:

or

What's the difference? Semantics. <strong> is used to indicate that the text is fundamentally or semantically important to the surrounding text, while <b> indicates no such importance and simply represents text that should be bolded.

If you were to use <b> a text-to-speech program would not say the word(s) any differently than any of the other words around it - you are simply drawing attention to them without adding any additional importance. By using

<strong>, though, the same program would want to speak those word(s) with a different tone of voice to convey that the text is important in some way.

Italic Text

To italicize text, use the <em> or <i> tags:

 

or

What's the difference? Semantics. <em> is used to indicate that the text should have extra emphasis that should be stressed, while <i> simply represents text which should be set off from the normal text around it.

For example, if you wanted to stress the action inside a sentence, one might do so by emphasizing it in italics via

<em>: "Would you just submit the edit already?"

But if you were identifying a book or newspaper that you would normally italicize stylistically, you would simply use

<i>: "I was forced to read Romeo and Juliet in high school.

Underlined Text

While the <u> element itself was deprecated in HTMl 4, it was reintroduced with alternate semantic meaning in HTML 5 - to represent an unarticulated, non-textual annotation. You might use such a rendering to indicate misspelled text on the page, or for a Chinese proper name mark.

Section 5.3: Abbreviation

To mark some expression as an abbreviation, use <abbr> tag:

If present, the title attribute is used to present the full description of such abbreviation.

Section 5.4: Inserted, Deleted, or Stricken

To mark text as inserted, use the <ins> tag:

To mark text as deleted, use the <del> tag:

To strike through text, use the <s> tag:

Section 5.5: Superscript and Subscript

To offset text either upward or downward you can use the tags <sup> and <sub>. To create superscript:

 

To create subscript:

 

@EVERYTHINGNT

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DSploit

DSploit

After playing with the applications installed on the Pwn Pad, I found that the most important application (at least for me) was missing from the pre-installed apps. Namely, DSploit. Although DSploit has tons of features, I really liked the multiprotocol password sniffing (same as dsniff) and the session hijacking functionality.

The DSploit APK in the Play Store was not working for me, but the latest nightly on http://dsploit.net worked like a charm.

Most features require that you and your target uses the same WiFi network, and that's it. It can be Open, WEP, WPA/WPA2 Personal. On all of these networks, DSploit will sniff the passwords - because of the active attacks. E.g. a lot of email clients still use IMAP with clear text passwords, or some webmails, etc. 

First, DSploit lists the AP and the known devices on the network. In this case, I chose one victim client.

In the following submenu, there are tons of options, but the best features are in the MITM section. 

Stealthiness warning: in some cases, I received the following popup on the victim Windows:

This is what we have under the MITM submenu:

Password sniffing

For example, let's start with the Password Sniffer. It is the same as EvilAP and DSniff in my previous post. With the same results for the popular Hungarian webmail with the default secure login checkbox turned off. Don't forget, this is not an Open WiFi network, but one with WPA2 protection!

Session hijack

Now let's assume that the victim is very security-aware and he checks the secure login checkbox. Another cause can be that the victim already logged in, long before we started to attack. The session hijacking function is similar to the Firesheep tool, but it works with every website where the session cookies are sent in clear text, and there is no need for any additional support.

In a session hijacking attack (also called "sidejacking"), after the victim browser sends the authentication cookies in clear text, DSploit copies these cookies into its own browser, and opens the website with the same cookies, which results in successful login most of the time. Let's see session hijacking in action!

Here, we can see that the session cookies have been sniffed from the air:

Let's select that session, and be amazed that we logged into the user's webmail session.

Redirect traffic

This feature can be used both for fun or profit. For fun, you can redirect all the victim traffic to http://www.kittenwar.com/. For-profit, you can redirect your victim to phishing pages.

Replace images, videos

I think this is just for fun here. Endless Rick Rolling possibilities.

Script injection

This is mostly for profit. client-side injection, drive-by-exploits, endless possibilities.

Custom filter

If you are familiar with ettercap, this has similar functionalities (but dumber), with string or regex replacements. E.g. you can replace the news, stock prices, which pizza the victim ordered, etc. If you know more fun stuff here, please leave a comment (only HTTP scenario - e.g. attacking Facebook won't work).

Additional fun (not in DSploit) - SSLStrip 

From the MITM section of DSploit, I really miss the SSLStrip functionality. Luckily, it is built into the Pwn Pad. With the help of SSLStrip, we can remove the references to HTTPS links in the clear text HTTP traffic, and replace those with HTTP. So even if the user checks the secure login checkbox at freemail.hu, the password will be sent in clear text - thus it can be sniffed with DSniff.

HTML source on the client-side without SSLstrip:

HTML source on the client-side with SSL strip:

With EvilAP, SSLStrip, and DSniff, the password can be stolen. No hacking skillz needed.

Lessons learned here

If you are a website operator where you allow your users to login, always:

1. Use HTTPS with a trusted certificate, and redirect all unencrypted traffic to HTTPS ASAP
2. Mark the session cookies with the secure flag
3. Use HSTS to prevent SSLStrip attacks

If you are a user:

1. Don't trust sites with your confidential data if the above points are not fixed. Choose a more secure alternative
2. Use HTTPS everywhere plugin
3. For improved security, use VPN

Because hacking has never been so easy before.
And last but not least, if you like the DSploit project, don't forget to donate them!

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WHAT IS ETHICAL HACKING

What is ethical hacking?

Ethical hacking is identifying weakness in computer system and/or computer networks and coming with countermeasures that protect the weakness.

Ethical hackers must abide by the following rules-
1-Get written permission from the owner of the computer system and/or computer network before  hacking.
2-Protect the privacy of the organisation been hacked etc.

Ethical Hacking and Ethical Hacker are terms used to describe hacking performed by a company or individual to help identity potential threats on a computer or network.

 

An Ethical Hacker attempts to byepass system security and search for any weak point that could be exploited by Malicious Hackers.

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AutoNSE - Massive NSE (Nmap Scripting Engine) AutoSploit And AutoScanner

Massive NSE (Nmap Scripting Engine) AutoSploit and AutoScanner. The Nmap Scripting Engine (NSE) is one of Nmap's most powerful and flexible features. It allows users to write (and share) simple scripts (using the Lua programming language ) to automate a wide variety of networking tasks. Those scripts are executed in parallel with the speed and efficiency you expect from Nmap. Users can rely on the growing and diverse set of scripts distributed with Nmap, or write their own to meet custom needs. For more informations https://nmap.org/book/man-nse.html

Installation

$ git clone https://github.com/m4ll0k/AutoNSE.git
$ cd AutoNSE 
$ bash autonse.sh

Exmaples

$ bash autonse.sh

Download AutoNSE

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Administración Remota De Servidores Desde Android

Sería muy util poder administrar todos nuestros servidores desde la palma de la mano.

Sin embargo una shell linux, no es viable en el teclado de un teléfono incluso de un tablet, sobretodo porque hay que escribir muchos símbolos, por ejemplo el guión, y estos teclados están pensados más bien para texto.

Pues bien, de esta necesidad surgió la aplicación SSHControl:


SSHControl

Esta problematica la he solucionado a base de utilizar nevegadores y estructurar los outputs para no acumular excesiva información en la pantalla.

- Navegador de ficheros
- Navegador de procesos
- Navegador de conexiones
- Navegador de logs
- Navegador de drivers de kernel

Esto permite administrar múltiples servidores con un solo dedo :)

Controlar la seguridad de sus servidores ahora es bastante sencillo y ágil, por ejemplo con solo hacer un "tap" encima de un usuario, podemos ver sos procesos asociados, con hacer otro tap en un proceso podemos kilearlo, ver mas info etc ..
Con hacer un tap encima de una apliacción, vemos sus conexiónes, con un tap en una conexión podemos agregar una regla de filtrado en el firewall, etc ..


En la siguiente versión habilitaré la opción de "Custom Commnands", la cual es muy util,
cada administrador o usuario linux, tiene una serie de comandos que repite con mucha frecuencia,
bien pues esta opción permite pre-programar estos comandos habituales, de manera que puedes lanzarlos con un simple tap.

En el roadmap tengo pensadas nuevas funcionalidades muy útiles :)

Aqui os dejo algunas capturas de pantalla:

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Security Onion - Linux Distro For IDS, NSM, And Log Management

Security Onion is a free and open source Linux distribution for intrusion detection, enterprise security monitoring, and log management. It includes Elasticsearch, Logstash, Kibana, Snort, Suricata, Bro, OSSEC, Sguil, Squert, NetworkMiner, and many other security tools. The easy-to-use Setup wizard allows you to build an army of distributed sensors for your enterprise in minutes!

Security-onion project

This repo contains the ISO image, Wiki, and Roadmap for Security Onion.

Looking for documentation?

Please proceed to the Wiki.

Screenshots

Download Security-Onion

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