Hacking For Beginners – Manthan Desai

2010

MP3Stego will hide information in MP3 files during the compression process. The data is first compressed, encrypted andthen hidden in the MP3 bit stream. Although MP3Stego has been written with steganographic applications in mind itmight be used as a copyright marking system for MP3 files (weak but still much better thanthe MPEG copyright flag defined by the standard). Any opponent can uncompress the bit stream and recompress it; thiswill delete the hidden information (actually this is the only attack we know yet) but at the expense of severe quality loss.

Steghide is a steganography program that is able to hide data in JPG, BMP, WAV, and AU files. The color frequencies arenot changed thus making the embedding resistant against first-order statistical tests.

Hydan steganographically conceals a message ito an executable. It exploits redundancy in the i386 instruction set bydefining sets of functionally equivalent instructions. It then encodes information in machine code by using theappropriate instructions from each set. The executable filesize remains unchanged. The message is Blowfish encryptedwith a user-supplied passphrase before being embedded.

The 1st method that We will Study Here Is Using command Prompt.

To hide a file behind a image.

To hide a file behind a image file which means that if any one opens that image he will see the image only but if you openin a special way then you can open the hidden file behind the image.

So to hide the file behind a image open CMD.exe

1) Select an image to be used for hiding file behind the image.

2) Now select a file to hide behind the image and make it in .RAR format. With the help of the WinRAR.

3) And most important is that paste both the files on desktop and run the following command on the commandprompt.

4) And then type the following command. { cd } { Copy /b imagename.jpg + filename.rar finalnameofimage.jpg }

www.hackingtech.co.tv

Page 99