[Noisebridge-discuss] Weapon for anonymity: solar-powered hexacopter with wifi?

Adrian Chadd adrian.chadd at gmail.com
Sat Aug 10 00:40:59 UTC 2013


On 9 August 2013 13:20, Robert "Finny" Merrill <rfmerrill at berkeley.edu> wrote:
> Well DUH of course

Don't duh me. I can out-duh you.

:)

Eg - if it's an Atheros NIC, you can do tricky things like:

* have multiple MAC addresses on the same NIC (the NIC doesn't care,
well, it doesn't care MUCH..);
* have different settings per MAC (11g only, 11b only, 11n only,
pretend to be a 1 antenna device, or a two antenna device);
* Vary the transmit power so you appear to be at different locations
at different times, making it harder to triangulate you;
* If you're tricky (and ath9k doesn't support this yet, but almost all
of the framework is there) you could setup multiple virtual STAs, on
different channels/frequencies, with different configurations and MAC
addresses, and talk to them all in different time slices. You can do
that as a station since you can tell the AP you're going to sleep;
you're then free to do whatever you want until the next beacon
interval.

>From the OS standpoint, you could add in some hacks (or maybe
someone's done it, i dunno) that shift around the IP stack behaviour
so you appear like different kinds of devices. Ie, so nmap will show
one MAC as windows, one as Linux, one as OpenBSD, one as SunOS (that's
how you tell them you're fucking with them, see.) You could send out
fake service announcements to confuse people to think you're a mac
device. etc, etc.

I can dream up more interesting ways to confuse people trying to
fingerprint and locate a device.



-adrian


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