well, that is possible. taking the audio and streaming it to a specific 
location is definitely within the realm of possibility.

still, wouldn't it be easier to use a vpn along with 2 other forms of 
encryption to get the same result?

-eric
from the central offices of the Technomage Guild, Too many secrets Dept.

On Dec 1, 2017, at 12:06 PM, Carruth, Rusty wrote:

> Which means that the ‘out of band’ cannot get ‘out of your subnet’, and 
> probably won’t even get ‘past your Ethernet hub/switch/router/whatever’ into 
> which the other end of your Ethernet cable is plugged.
>  
> Probably, unless you send it ‘loud enough’ to overwhelm the switch and get 
> bleedthrough to the other lines on the switch.  But I’d be surprised if you 
> could get it past the NEXT switch without damage to the first one.
>  
> Just guessing, though.  Anybody have some switches they don’t mind destroying 
> for a little test? ;-)
>  
>  
> (This reminds me a little bit of the ‘rumor’ of a ‘flashing eye’ that a 
> hacker could manage to display on the system console of a UNIVAC 1110 series 
> computer if they knew the secret incantations (and more than one was 
> required, let me tell you!).
>  
> Turns out, that in this case, the rumor was true, just not in the way we’d 
> heard it.)
>  
> Perhaps they’re putting digitized DTMF into the packet and sending it to a 
> special port on the other end?  (you know, port 80 is used for http, etc).
>  
> Rusty
>  
> From: PLUG-discuss [mailto:[email protected]] On Behalf 
> Of Eric Oyen
> Sent: Friday, December 01, 2017 11:52 AM
> To: Main PLUG discussion list
> Subject: Re: Dtmf over rj45
>  
> the kernel of truth is that you can use cat-x cable to do this, but any 
> ethernet switches in the line will either interrupt completely or filter out 
> the extraneous data as noise. In either case, your "out of band" 
> transmissions will be eaten by the first switch they come across. 
>  
> -eric
> from the central offices of the Technomage Guild, the "you can't get from 
> here to there" dept.
>  
> On Dec 1, 2017, at 8:09 AM, Aaron Jones wrote:
> 
> 
> Not sure myself honestly. The guy was using buzz words like “out of band 
> transmission” and claiming they could use dtmf and the intel me to send 
> “untraceable” data without the use of IP. 
>  
> I am trying to be objective about it but it seems like it wouldn’t be an 
> effective method of getting data out of a network. 
>  
> So potentially there is a kernel (heh) of truth in there. Who knows right now 
> I guess. 
>  
> Thanks,
> Aaron
> 
> On Dec 1, 2017, at 7:38 AM, Herminio Hernandez Jr. 
> <[email protected]> wrote:
> 
> Steve is right you can use RJ45 to transmit. The signal but Ethernet switch 
> are expecting Ethernet frames. 
> 
> Sent from my iPhone
> 
> On Dec 1, 2017, at 7:18 AM, Stephen Partington <[email protected]> wrote:
> 
> Are you talking about embedding this sort of functional noise into a line 
> being used by ethernet? and yes most quality switches would try to clean up 
> the noise in order to secure the data unless it just created enough of an 
> interruption to just disrupt the connection as a whole.
>  
> RJ45 is a socket type so you can wire it to do whatever you want. you can use 
> cat 4,5,6 cable to transport anything you want. I know multiple sites that 
> wired ethernet cable for POTS just because it gave them the ability to do a 
> number of things based on need.
>  
> On Fri, Dec 1, 2017 at 6:41 AM, Aaron Jones <[email protected]> wrote:
> Any one have any experience with dtmf (beeps and boops over phone) but using 
> rj45 instead of rj11?
> 
> I viewed a claim that the intel me can produce dtmf instructions that will be 
> regarded as noise by tools like wireshark and can be used to transfer things 
> like encryption keys surreptitiously over the net without being seen by 
> monitoring tools.
> 
> Essentially data is hidden in sight as noise on the line and picked up 
> somewhere else.
> 
> Rj11 phone line can do this. But can it be done with rj45? Wouldn’t the first 
> switch it hit just smooth noise?
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> 
> --
> A mouse trap, placed on top of your alarm clock, will prevent you from 
> rolling over and going back to sleep after you hit the snooze button.
> 
> Stephen
> 
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