Dailydave mailing list archives
Re: I am Jack's complete lack of covertness with my giant antenna
From: Rich Mogull <rmogull-dd () securosis com>
Date: Fri, 23 Mar 2007 13:23:26 -0700
Should be trivial to wire a basic external and use foil or something to block the signal except in one direction (foil or whatever, but would be easy to get more elegant. I've done a lot of DF work with avalanche searches and finding downed aircraft. All you need is something moderately directional and a signal strength meter. Sound actually works better sometimes than a signal strength visual, since the human ear is pretty good at detecting small pitch/volume changes. Once you have something small and directional, with some way of seeing/hearing signal strength, it's easy to just walk around and find what you want. I've seen plenty of people running around DefCon with Yagis, but for close range and just a ballpark location you don't need them. It would be trivial to do this on SILICA and maintain covertness, although it would take a little modification (not sure what you're using for hardware), and you'll need to display the strength. If you want to get really fancy you can put a second wireless in at an angle from the first, make both directional, and do nifty stuff in software to measure the differences and angles to limit all the not- so-covert walking around. A bunch of avalanche beacons do this, although the wavelength involved makes it easier (I think) than 2.4 GHz. The antennas are internal and you get both direction and distance. EIther way, you don't need anything big and can integrate directionality without putting a large directional antenna on your head. It's a lot easier to DF (unless you need pinpoint accuracy) than most people think... On Mar 22, 2007, at 7:22 PM, Dave Aitel wrote:
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 There's a lot of things you could do with a SILICA if you tacked a laser range finder to it, a directional antenna, or loaded it on more powerful hardware. All those things would be annoying to get through the minimum wage airport security, let alone a real inspection. Those are all really good ideas, but SILICA's goal is covertness. There's no real way to measure covertness, which is why Immunity CANVAS just has a bar at the bottom that goes from 1 to 11. Covertness is like writing. When it's good, you get the girl. When it's bad, you go down in flames and you don't even know why. May 21st we're doing a 5 day Unethical Hacking class here in South Beach. We'll be covering using ImmDBG to create Windows exploits, using Hydrogen and MOSDEF to bounce from machine to machine, and how to be covert. Be there, or be that guy with the giant antenna. - -dave -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.6 (GNU/Linux) iD8DBQFGAznntehAhL0gheoRAgscAJ4o6I9Pv7sc9rj28WaoKfbhB6SNMACeKzdA 8lZE/FcJGwxhGq63ASOM+hw= =kTZo -----END PGP SIGNATURE----- _______________________________________________ Dailydave mailing list Dailydave () lists immunitysec com http://lists.immunitysec.com/mailman/listinfo/dailydave
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Current thread:
- I am Jack's complete lack of covertness with my giant antenna Dave Aitel (Mar 22)
- Re: I am Jack's complete lack of covertness with my giant antenna matthew wollenweber (Mar 23)
- Re: I am Jack's complete lack of covertness with my giant antenna Rich Mogull (Mar 23)