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Go Back   Community > Technology > Network (in)Security

Network (in)Security Interesting hacks and cracks. Info on firewalls, TCP/IP, encryption, networks, and security. The ins and outs of the phone system, caller services, how things work, what's illegal and what's not, cellular phones, beepers, telephony legislation, the PUC, ISDN, taps, who's listening, and switches. Talking about phones, hacking systems, technical advice, and such is completely LEGAL in the United States -- it's covered by the First Amendment. What's illegal is conspiracy to commit a crime. So if you say something like "Meet me at 2am so we can crack a can" or "I changed my cell phone's number myself" you are criminally liable. Stating "You can crack a can by doing thus-and-so" or "If you wanted to change a cell phone's number, you could do it like so" is perfectly OK. Posting passwords, calling card numbers, or credit card numbers is forbidden on this network. Posting such info will get you booted off the net.

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  #11   Add ShredderMan to your ignore list  
Old 2007-07-18, 22:35
ShredderMan ShredderMan is offline
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Default Re: how do i hide files in to jpeg

i think maybe what he means (and what i would also like to possibly know) is how to hide a file in a jpeg so when someone opens it to look at it it opens and runs the file that was hidden within it
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  #12   Add maximo to your ignore list  
Old 2007-07-19, 01:36
maximo maximo is online now
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Default Re: how do i hide files in to jpeg

Quote:
Originally Posted by 23 View Post
open the file in notepad, save i as file.jpg

send it

person on other end opens it in notepad, saves as file.(the original extension)

then opens it....
Got it, exactly what i was going to say
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  #13   Add Rykoshet to your ignore list  
Old 2007-07-19, 04:47
Rykoshet Rykoshet is offline
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Valhalla Rykoshet is helpful Rykoshet is helpful Rykoshet is helpful
Default Re: how do i hide files in to jpeg

Judging by his level of coherent communication (ie, NONE), I'm going to assume he's a 13 year old kid trying to be a 1337 Haxxor and send a keylogger to the girl who turned him down.

So as ShredderMan was saying, I think he wants to send a file with a .JPG extension that will run as an executable, which is impossible unless the user does an "always open with this program" and tells her computer to open all .JPGs in command prompt.
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  #14   Add ak-kapocsi to your ignore list  
Old 2007-07-19, 04:54
ak-kapocsi ak-kapocsi is online now
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Default Re: how do i hide files in to jpeg

I'm sorry, I don't speak retard.

If you post in English maybe I can help you.
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  #15   Add Dark_Magneto to your ignore list  
Old 2007-07-20, 02:48
Dark_Magneto Dark_Magneto is offline
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Default Re: how do i hide files in to jpeg

Quote:
Originally Posted by Xpenguin17 View Post
Note: you cannot hide shit into JPEGs, only true-color or grayscale BMPs cuz JPEG is lossy and you would lose your original data.
Wrong.

http://img233.imageshack.us/img233/2666/jpgtorarqa7.jpg
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  #16   Add lifejunkie to your ignore list  
Old 2007-07-20, 03:13
lifejunkie lifejunkie is offline
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A dream within a dream. Send a message via ICQ to lifejunkie lifejunkie is helpful lifejunkie is helpful lifejunkie is helpful lifejunkie is helpful
Default Re: how do i hide files in to jpeg

Well, the first thing to do is find an exploit in the JPEG rendering code of the program you expect it to be opened with.

Use this exploit to extract your binary code from the image into memory and execute it.
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  #17   Add Kleenex to your ignore list  
Old 2007-07-20, 03:18
Kleenex Kleenex is offline
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Thumbs up Re: how do i hide files in to jpeg

There's a program to hide .rar files into .jpg files which I received (ironically?) from inside a .jpg file.
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  #18   Add Chemical Eudaemonia to your ignore list  
Old 2007-07-20, 03:29
Chemical Eudaemonia Chemical Eudaemonia is offline
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Mexico, CA Chemical Eudaemonia is helpful
Default Re: how do i hide files in to jpeg

Quote:
Originally Posted by Xpenguin17 View Post
I've lost count of how many times my girl sent me pictures of her sweet titties in BMP format (3-4 megs in size) before I taught her how to convert to JPEG.
You know what would be much better? Dump the online girlfriend and get a real one, then you won't have to relay pictures to jack off.
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  #19   Add Xpenguin17 to your ignore list  
Old 2007-07-20, 07:16
Xpenguin17 Xpenguin17 is offline
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Default Re: how do i hide files in to jpeg

Quote:
Originally Posted by Dark_Magneto View Post
Wrong.

http://img233.imageshack.us/img233/2666/jpgtorarqa7.jpg
Quote:
Originally Posted by http://img233.imageshack.us/img233/2666/jpgtorarqa7.jpg
This works because the RAR is appended to the JPG beyond the image data, while WinRAR only starts reading from the RAR header and ignores what precedes it.
In other words: prepend the bastard before the header to keep the motherfucker raw. Anyone able to intercept your shit that you basically attach to the JPG (instead of actually hiding the contents INTO the picture) would not be fooled by this stunt. It would be obvious that a file is hangin' from the JPEG.

In short: that method doesn't do JACK SHIT.
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  #20   Add Dark_Magneto to your ignore list  
Old 2007-07-20, 07:26
Dark_Magneto Dark_Magneto is offline
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Texas Dark_Magneto is helpful
Default Re: how do i hide files in to jpeg

It allows you to send files as images. If they're small enough. most people would never guess that there's anything embedded in the image.
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