45 replies to this topic

[beardednose]

I was just reading a Bruce Schneier article and it reminded me of something I brought up before here but never got a rise out of anyone on. So I'm bringing it up again, just for fun.

I found a covert channel in the GSO forum. Can you find it?

As defined, a covert channel "is a communications channel that transfers some kind of information using a method originally not intended to transfer this kind of information." Translated, I'd say a CC is a way to provide information to those who know where it is and where others don't.

I admit this CC is a bit of a stretch, but I'll bet you never thought about it before. Hey, I've never hesitated to go over the top before!

I have some hints to give out, but before I give them out, I thought I'd give you a chance to be creative.

WARNING: Don't overcomplicate this challenge. It's not a hack or anything like that. Don't go poking where you don't belong or you could lose your account.

As I like to say, the best place to hide something is out in the open!

[vnet576]

signatures?

[packet]

So this is probably not it but I thought of a fun idea for a CC. Basically you have a system that watches a board like GS and looks at the users logged in. Depending on if certain users log in or not and how long they are logged in for it could trigger certain activities. So if Dsdfoiu logs in at the same time as VCXoiusd it could mean launch the worm.

Or even coded commands could be launched: look for usernames starting with CKI and then look at the remainder of the username: CKIDWOW. DWOW would refer to a specific command that the watching system would execute.

--P>G>>

[IcedOut3E]

Maybe this shit is way too much for me and I don't understand it so I'll throw a wild guess...does it have anything to do with IRC, some sorta transmit to IRC?...lol.

Welp, See ya.

[pedropalmeiro]

steganography
.... ummm maybe too complicated...

[IcedOut3E]

Steganography (literally meaning covered writing) dates back to ancient Greece, where common practices consisted of etching messages in wooden tablets and covering them with wax, and tattooing a shaved messenger's head, letting his hair grow back, then shaving it again when he arrived at his contact point.

DAMN YOU! What are you hiding... ::peers around::

[Blake]

Inside of your homepage link or PM name

[Chris]

Ok so it wasnt that, hmmmm im stumped BN, damn you!

[beardednose]

signatures?

Nope, cuz they're visible to all. Can you change the font color and hide it perhaps? But a "blank" space would be displayed.

Packet

Steg is too complicated. At least some of you were RIGHT about something!

IRC

Nope. Too complicated again. You're trying too hard.

Inside of your homepage link or PM name

An intelligent quess. Slightly warm, but still on the wrong track.

Jay

I'm impressed! But don't give it away like that!

If someone else finds it, just put a smiley in and PM me.

---------------

No hints yet, at least not until ComSec (my hero) and Spookie and a few other heavyweights step on the scales.

YOU'RE GONNA HATE YOURSELF!

[tibbar]

easy, we have over 26 forums. assign a forum to a letter of the alphabet.

then post in each forum in order, to spell out a message (order of letters can be determined by time of post).

For the person reading the message, they simply search for the user, and click show all posts.

the board then displays them in time order, hence showing the secret message!

[buzzons]

Hacking and network security articles and hacking prevention resources for the government and general public. Covering all aspects of Computer Hacking, including tutorials and exploit downloads.

on the top of the front page , but its same colour as the backdrop

[buzzons]

nope

[myth]

Avatars ? Ie, putting information into your avatar's 'unused data section' ? Kinda like the stenography ?