Security Basics mailing list archives
Re: RFMON detection
From: captgoodnight () acsalaska net
Date: Tue, 6 Jul 2004 19:40:48 -0800
On Tuesday 06 July 2004 07:45 am, hax wrote:
Curious; is it possible to remotely detect a sniffing wireless card that's in monitor mode?The short answer is: no, it isn't. RFmon mode is simply making the card act like a radio, picking up all that's in the air. Because of this, sniffing with RFmon will show you all the packets going by without you being connected to any AP. You can't detect this, it's like asking if you can detect someone tuned to a certain radio station.
Perfect analogy.
Also, I'm yet to see a card that can transmit while in RFmon, so even if you try to do something that could be logged (making a connection to the AP), it won't work.
I may have read that it is possible. But, I do doubt myself; late nights ect....
Probe requests (the various *stumblers), however send out probe packets to see if any networks reply. Because this is a packet, even though there's no associating with the AP, the MAC will be attached and the probe attempt can be logged.
kismet rocks! :)
A really good paper can be found here: http://home.jwu.edu/jwright/papers/l2-wlan-ids.pdf that discusses the fingerprints left from various probing programs. The paper also suggests ways of baiting RFmon sniffers to connect where they can be logged at L3, but I wouldn't recommend inviting trouble :) At any rate, RFmon isn't something that you can detect.
Thought so. Decoy methods (packets, APs...) are a great way to catch ignorant baddies.
Oh dear, I'm rambling again :/ --hax
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Current thread:
- RFMON detection captgoodnight (Jul 05)
- Re: RFMON detection Alberto Garcia Hierro (Jul 06)
- Re: RFMON detection mike (Jul 07)
- Re: RFMON detection pingywon MCSE (Jul 06)
- Re: RFMON detection captgoodnight (Jul 07)
- Re: RFMON detection hax (Jul 07)
- Re: RFMON detection hax (Jul 06)
- Re: RFMON detection captgoodnight (Jul 07)
- Re: RFMON detection pingywon MCSE (Jul 08)
- Re: RFMON detection Austin Godber (Jul 08)
- Re: RFMON detection hax (Jul 09)
- RE: RFMON detection David Weiss (Jul 12)
- Re: RFMON detection hax (Jul 12)
- RE: RFMON detection Steven Hess (Jul 12)
- Re: RFMON detection hax (Jul 12)
- RE: RFMON detection Jef Feltman (Jul 14)
- Re: RFMON detection captgoodnight (Jul 16)
- Re: RFMON detection captgoodnight (Jul 07)
- Re: RFMON detection Alberto Garcia Hierro (Jul 06)
- <Possible follow-ups>
- Re: RFMON detection H Carvey (Jul 07)