organise
Hide MP3s in a Flickr Image
Posted by Kevin Purdy at 12:00 AM on June 10, 2008
The Digital Inspiration blog hits upon a pretty nifty use of a file-hiding technique we've shown here before, to share MP3s with a select group of friends, or even embed a related sound file inside a photograph. Using Flickr's easy photo-sharing and a command-line trick, you can create a JPG file that anyone can download and, once renamed as a .mp3 file, plays in any music player. For more file-hiding fun, check out our feature on easy steganography tools.

Comments (AU Comments · US Comments)
There are currently no AU comments for this post.
digitalgravy
Posted 12:54 AM 10/6/08
apologies if this is a stupid question, but does Flickr not compress images? if so what would this do to the file?
digitalgravy
ultrasur1
Posted 1:19 AM 10/6/08
this will not end well.
ultrasur1
shamess
Posted 1:16 AM 10/6/08
We do this with ebooks on 4chan.
shamess
UnStatusTheQuo
Posted 1:09 AM 10/6/08
Neat trick for distribution in the event Flickr doesn't start analyzing hex values to notice the obvious hex file signature.
UnStatusTheQuo
earth2marsh
Posted 1:48 AM 10/6/08
It's probably not the best idea to do this with content that you don't have the rights to...
earth2marsh
Amit Agarwal
Posted 1:47 AM 10/6/08
@digitalgravy: You can always download the Original version of your image from Flickr.
Amit Agarwal
William Hook
Posted 1:28 AM 10/6/08
Or you could just use RapidShare or any one of the free hosts.
Problem solved.
William Hook
tedyc03
Posted 2:29 AM 10/6/08
forgive me...but doesn't this pose security questions?
tedyc03
quail
Posted 2:21 AM 10/6/08
Years ago, before Y2K, I read about the F.B.I. monitoring the images in eBay. Seems that a sizable portion of the images at the time carried encrypted messages. It was thought to be a communication portal for spies, hackers, and the like. I wouldn't be worried about the copyright issue as much as having governments getting the wrong idea about you and your IP address.
quail
lordargent
Posted 2:12 AM 10/6/08
^ captain obvious ;)
lordargent
njtrout
Posted 2:40 AM 10/6/08
This is an excellent method to hide malware inside. Not that it has not been used in the past. Now all users should change the default file extension of their AV product to scan .jpg, .tiff etc.
Sad to see this happen.
NJTrout
njtrout
Lazarus
Posted 5:03 AM 10/6/08
The only thing I hide in my photos are pictures of a giraffe, or a sail boat, or a monkey. Of course thats with all the little dots and you gotta stare at it for about 30 mins before you can see it. But thats part of the encryption method. And most importantly, it foils foreign government deciphering (unless they got more than 30 mins)
Lazarus
OX4
Posted 4:48 AM 10/6/08
Thus more proof that Flickr is becoming the junkyard of photo sites.
OX4
Busybyeski
Posted 3:53 AM 10/6/08
@njtrout: There's nothing new to this.
If someone can get you to change a filename and extract unknown files, they could have gotten you with a regular old fashioned virus anyway.
Busybyeski
decider
Posted 3:32 AM 10/6/08
I hope your virus scanner already pics up image files... jpg has been exploited before ;)
decider
DarleneKaplaa
Posted 12:59 AM 10/6/08
thanks a lot for posting this to the world! now they'll implement something to keep people from doing it.. _________________________________________________________________ Instantly invite friends from Facebook and other social networks to join you on Windows Live⢠Messenger. https://www.invite2messenger.net/im/?source=TXT_EML_WLH_InviteFriends
DarleneKaplaa
Blah8
Posted 8:13 AM 10/6/08
@DarleneKaplaa:
How much are you getting paid to throw that ad in your post? ;-P
But yeah, this has been done before, though it's interesting nonetheless.
Blah8
nighttimestereo
Posted 12:40 PM 10/6/08
This is pretty low tech stuff. I would like to see a program that packs data into the least significant bits of the quantized coefficients (effectively de-quantizing them to a degree). Now that would be sneaky, and much harder to detect automatically.
nighttimestereo
RevWaldo
Posted 11:46 PM 10/6/08
- Gosh, mister, that JPG file ya posted is 6 megabytes! It should be way smaller than that. I oughta be able to fix that for ya. You want I should take a look?
- Go 'way kid, ya bother me...
RevWaldo
orky56
Posted 8:59 AM 10/6/08
@decider: i like your use of "pics" ;)
orky56
Alucard
Posted 12:21 PM 12/6/08
Um, you can also put RARs and, therefore, just about anything you want.
Alucard
digiq1
Posted 2:06 AM 10/6/08
Wow, does anyone else see this as a way to "Rick roll" someone?
digiq1