domingo, 21 de enero de 2024

Linux Command Line Hackery Series - Part 3


Welcome back, hope you are enjoying this series, I don't know about you but I'm enjoying it a lot. This is part 3 of the series and in this article we're going to learn some new commands. Let's get started

Command: w
Syntax:      w
Function:   This simple function is used to see who is currently logged in and what they are doing, that is, their processes.

Command:  whoami
Syntax:       whoami
Function: This is another simple command which is used to print  the  user  name  associated  with the current effective user ID.

Try it and it will show up your user name.

If you want to know information about a particular user no matter whether it is you or someone else there is a command for doing that as well.

Command: finger
Syntax:      finger [option] [username]
Function:   finger is a user information lookup program. The [] around the arguments means that these arguments are optional this convention is used everywhere in this whole series.

In order to find information about your current user you can simply type:

finger username

Here username is your current username.
To find information about root you can type:

finger root

and it will display info about root user.

Command: uname
Syntax:      uname [options]
Function:   uname is used to display information about the system.

uname is mostly used with the flag -a, which means display all information like this:

uname -a

Command: df
Syntax:      df [option] [FILE ...] 
Function:   df is used to display the amount of space available.
If you type df in your terminal and then hit enter you'll see the used and available space of every drive currently mounted on the system. However the information is displayed in block-size, which is not so much human friendly. But don't worry we can have a human friendly output as well using df by typing:

df -h

the -h flag is used to display the used and available space in a more user friendly format.
We can also view the info of a single drive by specifying the drive name after df like this:

df -h /dev/sda2

That's it for now about df, let's move on.

Command:  free
Syntax:       free [options]
Function:    free is used to display the amount of free and used physical memory and swap memory in the system.
Again the displayed information is in block-size to get a more human readable format use the -h flag like this:

free -h

Command: cal
Syntax:      cal [options]
Function:    cal stands for calendar. It is used to display the calendar.

If you want to display current date on the calendar you can simply type:

cal

and wohooo! you get a nice looking calendar on screen with current date marked but what if you want to display calendar of a previous month well you can do that as well. Say you want to display calendar of Jan 2010, then you'll have to type:

cal -d 2010-01

Nice little handy tool, isn't it?

Command: file
Syntax:      file filename ...
Function:   file is an awesome tool, it's used to classify a file. It is used to determine the file type.

Let's demonstrate the usage of this command by solving a Noob's CTF challenge using file and base64 commands. We'll talk about base64 command in a bit. Go to InfoSecInstitute CTF Website. What you need to do here is to save the broken image file on your local computer in your home directory. After saving the file open your terminal (if it isn't already). Move to your home directory and then check what type of file it is using the file command:

cd
file image.jpg

Shocking output? The file command has identified the above file as an ASCII text file which means the above file is not an image file rather it is a text file now it's time to see it's contents so we'll type:

cat image.jpg

What is that? It's some kind of gibberish. Well it's base64 encoded text. We need to decode it. Let's learn how to do that.

Command: base64
Syntax:       base64 [option] FILE ...
Function:    base64 command is used to encode/decode data and then print it to stdout.

If we're to encode some text in base64 format we'd simply type base64 hit enter and then start typing the text in the terminal after you're done hit enter again and then press CTRL+D like this:

base64
some text here
<CTRL+D>
c29tZSB0ZXh0IGhlcmUK        # output - the encoded string

But in the above CTF we've got base64 encoded data we need to decode it, how are we going to do that? It's simple:

base64 -d image.jpg

There you go you've captured the flag.
The -d flag here specifies that we want to decode instead of encode and after it is the name of file we want to decode.

Voila!
So now you're officially a Hacker! Sorry no certificates available here :)

That's it for this article meet ya soon in the upcoming article.
Continue reading

  1. Hacker Tools List
  2. Pentest Tools Github
  3. Pentest Tools Free
  4. Pentest Tools Find Subdomains
  5. Underground Hacker Sites
  6. Pentest Tools Windows
  7. Ethical Hacker Tools
  8. Hacking App
  9. Hacker Tools For Ios
  10. Hacker Tools List
  11. Hacking Tools Windows 10
  12. Hacking Tools For Mac
  13. Bluetooth Hacking Tools Kali
  14. Pentest Tools Website Vulnerability
  15. Growth Hacker Tools
  16. Tools For Hacker
  17. Hack Tools For Pc
  18. Pentest Tools Kali Linux
  19. Termux Hacking Tools 2019
  20. Hacking Tools Windows
  21. Hack Rom Tools
  22. Termux Hacking Tools 2019
  23. Pentest Tools
  24. Pentest Tools For Windows
  25. Blackhat Hacker Tools
  26. Hacker Security Tools
  27. Hacking Tools Online
  28. Pentest Tools For Ubuntu
  29. Tools Used For Hacking
  30. Pentest Tools Alternative
  31. Hacker Hardware Tools
  32. Pentest Tools Apk
  33. Hacking Tools For Kali Linux
  34. Pentest Tools Framework
  35. Wifi Hacker Tools For Windows
  36. Growth Hacker Tools
  37. Hack Tools For Pc
  38. Hacker Tools Windows
  39. Hack Rom Tools
  40. Hack Tools Github
  41. Hacking Tools Kit
  42. Bluetooth Hacking Tools Kali
  43. Hak5 Tools
  44. Growth Hacker Tools
  45. Hak5 Tools
  46. Pentest Tools Subdomain
  47. Underground Hacker Sites
  48. Hacking Tools Hardware
  49. Hack Apps
  50. Hacking Tools For Windows
  51. Beginner Hacker Tools
  52. Physical Pentest Tools
  53. Hacking Tools And Software
  54. Hacker Tools Windows
  55. Hack Tools Online
  56. Hacking Tools 2019
  57. Pentest Tools Windows
  58. Top Pentest Tools
  59. Android Hack Tools Github
  60. Hacking Tools Hardware
  61. Pentest Automation Tools
  62. What Is Hacking Tools
  63. Pentest Tools For Ubuntu
  64. Tools 4 Hack
  65. Hacking Tools Mac
  66. Hacking Tools Github
  67. Hack Tools For Ubuntu
  68. Black Hat Hacker Tools
  69. Pentest Tools For Android
  70. Pentest Tools Website Vulnerability
  71. Pentest Tools For Windows
  72. Hacking Tools Download
  73. Hacking Tools For Windows Free Download
  74. Hacker Tools Linux
  75. Pentest Automation Tools
  76. Hacking Tools For Kali Linux
  77. Free Pentest Tools For Windows
  78. New Hacker Tools
  79. Hacking Tools For Windows 7
  80. Hacking Tools For Mac
  81. Pentest Tools Kali Linux
  82. Tools 4 Hack
  83. Install Pentest Tools Ubuntu
  84. Pentest Box Tools Download
  85. Hack Tool Apk
  86. What Are Hacking Tools
  87. Hack Tools 2019
  88. Hacking Tools Kit
  89. Termux Hacking Tools 2019
  90. Hacker Tools For Mac
  91. Pentest Automation Tools
  92. Hack Tool Apk
  93. Nsa Hacker Tools
  94. Growth Hacker Tools
  95. Pentest Tools Online
  96. Hacking Tools 2020
  97. Hacker Search Tools
  98. Hack Rom Tools
  99. Pentest Tools Github
  100. Hack Tool Apk
  101. Hacker Tools Apk Download
  102. Top Pentest Tools
  103. Hacking Tools Software
  104. How To Make Hacking Tools
  105. Hack And Tools
  106. Hack Tools
  107. Hacking Tools For Windows Free Download
  108. Hackers Toolbox
  109. Pentest Tools Kali Linux
  110. Hacker Tools Hardware
  111. Hack Tools Pc
  112. Pentest Tools Subdomain
  113. Hacking Tools 2020
  114. Usb Pentest Tools
  115. Hacker Techniques Tools And Incident Handling
  116. Hack Tools For Windows
  117. Hacker Tools Online
  118. Best Pentesting Tools 2018
  119. New Hacker Tools
  120. Hackers Toolbox
  121. Hacking Tools Windows
  122. Hack Tool Apk
  123. Hacker Tools Free
  124. Hacker Tools Windows
  125. Hack Tools
  126. Hacking Tools Kit
  127. Pentest Tools For Windows
  128. Black Hat Hacker Tools
  129. Pentest Reporting Tools
  130. Pentest Tools Bluekeep
  131. Hack Tools For Ubuntu
  132. Hacking Tools Download
  133. Hacker
  134. Pentest Tools Find Subdomains
  135. Hacking Tools Hardware
  136. Tools For Hacker
  137. Easy Hack Tools

How To Protect Your Private Data From Android Apps

protect-private-data-from-apps
In android there is lots of personal data that can be accessed by any unauthorized apps that were installed on the device. This is just because your Android data is openly saved in your file explorer that is not encrypted or protected by encryption method, so, even normal app can also hijack your data very easily as the media access permissions are granted when you click on accept button while installing the apps. And this may be endangering the private data that you might not want to share with anyone. So here we have a cool way that will help you to make your data private by disallowing the apps to access your media files without your permission. So have a look on complete guide discussed below to proceed.

How To Protect Your Private Data From Android Apps

The method is quite simple and just need a rooted android device that will allow the Xposed installer to run on the device. And after having the Xposed installer you will be using an Xposed module to disallow the apps to have access to your personal or say private data. For this follow the guide below.

Steps To Protect Your Private Data From Android Apps:

Step 1. First of all, you need a rooted android as Xposed installer can only be installed on a rooted android, so Root your android to proceed for having superuser access on your android.
Step 2. After rooting your Android device you have to install the Xposed installer on your android and thats quite lengthy process and for that, you can proceed with our Guide to Install Xposed Installer On Android.Xposed Installer
Step 3. Now after having an Xposed framework on your Android the only thing you need is the Xposed module that is DonkeyGuard – Security Management the app that will allow you to manage the media access for apps installed on your device.
Step 4. Now install the app on your device and after that, you need to activate the module in the Xposed installer. Now you need to reboot your device to make the module work perfectly on your device.
Step 5. Now launch the app and you will see all the apps that are currently installed on your device.
privacy 1
Step 6. Now edit the media permission for the apps that you don't want to have access to your media with private data.privacy 2
That's it, you are done! now the app will disallow the media access to that apps.

Manually Checking App Permission

Well, our Android operating system offers a nice feature in which we can manage a single app's permission. However, you need to have Android 6.0 Marshmallow or a newer version to get the option.
Step 1. First of all, open Settings and then tap on 'Apps'.
Manually Checking App Permission
Manually Checking App Permission
Step 2. Now you will see the list of apps that are currently installed on your Android smartphone. Now you need to select the app, and then you will see 'Permissions.'
Manually Checking App Permission
Manually Checking App Permission
Step 3. Now it will open a new window, which will show you all permissions that you have granted to the app like Camera access, contacts, Location, microphone, etc. You can revoke any permissions as per your wish.
Manually Checking App Permission
Manually Checking App Permission
Well, the same thing you need to perform if you feel that you have installed some suspicious app on your Android. By this way, you can protect your private data from Android apps.

More information


Normas ambientales que tienes que cumplir para NO SER MULTADO.

  -  

¡Protege tu empresa!.

Ver mensaje de correo en línea

Seminario Legislación Ambiental

La Procuraduría Federal de Protección al Ambiente (PROFEPA), aplicará sanciones a 12 empresas del país.

Apreciable ANGELICA AGUILAR VALDEZ 

Aprende cuáles son las normas ambientales que tu empresa tiene cumplir para no ser multada ¡Capacítate en nuestro seminario especializado!

Seminario Online EN VIVO:

Legislación Ambiental en México.
Fecha: 8 de febrero de 2024.

¡Inscríbete con el 50% de descuento!

Obtener Temario y Costos

Obtén un diploma con valor curricular avalado por SEP, STPS y CONOCER.

Acredita los conocimientos adquiridos en esta capacitación con un reconocimiento con valides oficial. 

diploma legislación ambiental

En este seminario conocerás el marco jurídico ambiental vigente en México y cómo aplicar de inmediato y de manera efectiva la legislación en tu empresa para evitar sanciones.

Solicitar Temario por WhatsApp

¿Deseas aclarar tus dudas o recibir atención personalizada?
Call center: (+521) 55 88 69 46 64
WhatsApp: (+521) 55 21 86 03 84


© Derechos reservados, 2024, Cursos-LatinoAmérica • 21 338

Usted recibe este boletín informativo por ser un cliente o suscriptor de Cursos-LatinoAmérica. Cancelar suscripción

  -