How to: Hide files inside pictures.

Someone showed me how to do this on MSN today, and I love it.


This came in handy for me today, alot!;)

This is a fairly lengthy post, but it takes less than 5 minutes to do, and it's easy;)

Basically, you can hide files inside images, then open the images with winRAR or another extraction program to get the file.

Like a pretty storage file:D





Step 1.

You'll need all your files in ONE folder (the folder should be in the C drive, for convenience), like this:

http://img206.imageshack.us/img206/7...lderyk5.th.jpg

You'll need the file (can be as many as you want), and the image you want to merge it with in the same folder.



Step 2.

Put the file(s) you want into an archive (rar or zip, etc.) , like this:

http://img527.imageshack.us/img527/7...hivegx7.th.jpg

(Archive filename must not include spaces)

The archive should now be in the original folder. In this case, "Files"



Step 3.

Open Command Prompt (Start -> Run -> type cmd and press Enter)

Use the "cd .." command until you get to "C:\"

Then type "cd XXXX". In my case it's "cd Files".


http://img104.imageshack.us/img104/8981/cmdbg4.th.jpg

What you then is write "copy /b xxx.jpg + xxx.xxx.rar xxx.jpg"

(first file is the original image, second is the archive with the file, and the third is the output image with the file in it.)

In this case, it's "copy /b rooky2.jpg + Codes.txt.rar hbb.jpg"

http://img104.imageshack.us/img104/271/cmd2yb4.th.png

Then it should be in the folder:

http://img530.imageshack.us/img530/3...allypt8.th.jpg




Now, is to test it.


Just download this image and open in WinRAR or WinZip, or 7Zip, etc.

http://rooky.adams-corner.net/j.jpg








This was a handwritten guide, but I'm sure there are other guides out there on google. I wanted to make this myself though, make me feel better:boogie:

http://en.wikipedia.org/wiki/Steganography

*edit*
by the way,
the method shown above, while quite impressive, has a few major flaws
(if you want to do nasty things)

first, the "secret" information is just appended to the end of the image data
(it's compressed, but that's it)
if you're scanning for known data, it'll be flagged up quite easily

second, you can only append a small amount to the end of the image
an image 100x100 with a file size of 100mb would be very obvious

in any case,
steganography is still pretty cool

Can't you just open a bitmap file in binary append mode and write whatever you want to the end of it? Bitmap loaders only go as far as the headers tell them to so you can add messages to the end of them if you want. It should be a fairly simple program to build.