EXPERIMENT-09
‘Aim of the Experiment:
To study the steps for hiding and extract any text file behind an image file/ Audio file
using Command Prompt
Any file like .rar jpg .txt or any file can be merged inside another file. In a simple
way, we shall learn how to hide a text file inside an image file using the Command
Prompt
How to Hide the FILE?
Suppose you have to hide a text file “A.txt” with the image file “B jp:
them in a new file as “C.jpg”. Where “C.jpg” is our output file which contains the text
hidden in the image file.
Follow the steps:
1. copy the file,u need (o hide, to desktop(for our tutorial Jet us assume the file to
be "A.txt")
2. copy the image, within which you need to hide the file, to desktop (let it be
“B.ips")
3. now open the cmd:
>etrltr
type: cmd and hit enter
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DDownloaded by Muhammad Tariq (saaim01@gmailcom 4. in emd first type the code as follows
>ed desktop
NOTE: this code is for assigning the location on cmd to desktop
5. Now type the following code:
> copy /b B.jpg + A.txt C.jpg
Syntax: copy /b Name-of file-containing-text-you-want-to-hide.txt + Name-o
image.jpg Resulting-image-name,jpg
“C.jpg" is the output image inside this out image our file is hidden
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‘This documents asl
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Downloaded by Muhammad Targ (saaimt @gmaicom How to retrieve the file?
1. locate C.jpg file from where you want to retrieve text data
2. Right-click and open with notepad
Teymnnn Deak) THE BCS YSN hak Talla hCogaefonsc epee
* west
ee
1 Continnhent
bocca sane nnsoosowe
con ml
et ese
Done! Successfully opened! In the last of the notepad, you'll find the content of the
text file.
-H°t5XG7PUKG|1i0h2 }osjUy+?S-9FIOb¢ “ziBoOH-1tatUST4? s”H7m-F™bHVEdIONSE
24 Z| c[ol@te\¢-alupaleies zgUIbHN —_ tNSUA3O{oc#nl75-YesRadés1e{A1VEUG
‘OFSaAROQ| lbeT2vphIact; —_—_2}*$no,,T-alEInzZ+?"neSAs FU: 7q/-IA05Z*? 2N}|
im E2w- 87 5s SEKASIENXIO®UIA)90\..REG* |-2nE°- LEU” dbl*St?ICCV>IC “SUA:
21 3"F8d juvi" ba§7n/ i tNS>EW9, 2E2-03 nde (Eefuea,, siigl* i604
inde VomLESHIASDHMBery“Vx56.ayxi%;6:2000-S0! “2?¥q, £160" VPiu~OHlTSap]3¢° f
teniéa®t ‘20p"E aide obSAt” nlc wAU> loz... €I¥IU8 ,MF,,?AKL°E /tha?E"E"U0Q"1\|
"ExOE 182 jX5VEDr#C *hSt -XDExIax2It¢8VAdeVH0O"t{_c& #15}
BSAEE OIA" UKAEEKTI°OIUOUIPU @v/188CK 281 18 @ LO9AY/2)«-Pell{StOd(¥9U~
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casene=rje=it ‘FOUsKurU2-#* sarngaKegrc[OovkaUevWDGdO_*Bileniéasos
kevila#ig >UTHIDYIAFY?DFPH | ESXA€AK+Ia6_2IE WlJI";\“
cWOEO*_;¥qdS_-@2Q0o0YAG9MI' §] JERE} :GmVIVEZZY JNUUUTD' 6lr3,,d.l1a0uN7 F4F]
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@xs60)00 Aseé, AlyUWelcome to Odisha State Open University.
Hide A Message Into Image:
Open Run command window by pressing win + r.
Open command prompt by typing cmd and press OK
Enter the directory where you have your files. Then type the command :
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DDownloaded by Muhammad Tariq (saaim01@gmailcom echo "Your Message">>"'image.jpg"
‘Now the message is successfully hidden in the image file.
To view the message: Open with Notepad, at last, you'll find the Your Message
Another Method
1. Open Run command window by pressing win +
. Open command prompt by typing emd and press OK
2
3. Enter the directory where you have your files.
4. Then type the command :
Shin x
BH Srey
4 OK Cancel Bowen
>> copy/b B.jpg + A.rar C.jpg
Here a.rar is the file to hide behind the image file (b.jpg) and the output file is e.jpg.
To view the RAR file: right-click on the output image (here, c.jpg) and open with
WinRAR. You'll find the file inside the image.
Hide and text behind Audio File
Firstly get hold of a sound file you want to hide the data in (example sound.mp3), then
gather all your files you want (o hide and put them in a ZIP (cxample secret.zip),
Our chosen Sound and zip file:
secretzip sound.mp3
Windows 7/10: Shift+right click in the folder containing the files will open the
command prompt in that directory Windows: Open command prompt (start->run
cmd), then use cd to get to the folder where the files are stored.
Linux: You know what to do, open terminal and move to the directory containing
files.
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Tiedooimenisnsitiotectchesson Ey studocu
Downloaded by Muhammad Tariq (saaimd@gmailcom ‘We now need to merge these files together, but we want to use a binary merge to
keep the two files intact. With Windows copy command this uses the /B switch,
(Binary Data)
Windows
Code:
LinuxCode:
copy /b secret.zip + sound.mp3 newfile.mp3
cat sound.mp3 secret.zip > newfile.mp3
You should now have gained a new file called newfile.mp3. This should look identical
to the sound you started with when opened with a media player, but with a secret
payload hidden within. Here is the example sound containing a ZIP:
D:\Creepy-stuff\exp>copy /b sound.np3+secret-2ip neuf ile.mp3
eres
ar toe
newfilemp3
‘The two simplest ways to get your data back out of these files is to either change the
extension from .mp3 to .zip or to open your chosen ZIP program and open
newfile.mp3 within that. You should now be presented with your original files.
CB reetite vip - Sex 70 avers packed sire 2,007,758 bytes pe
name Sue vacxea type =
a
Hydengensieg cy see S0520 592528 IPG Fle
DDownloaded by Muhammad Tariq (saaim01@gmailcom
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