HE WAS SNIFFING ME!!!! | xltronic messageboard
 
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HE WAS SNIFFING ME!!!!
 

offline nanotech from Sukavasti Amitaba Pureland (United States) on 2003-11-29 18:42 [#00970745]
Points: 3727 Status: Regular



How can i tell when someone's put a sniffer on my traffic?
Are there any hacker sites anyone could sugest where i can
read more about the mechanics of a sniffer?


 

offline Aphexisatwin from your mom's room (United States) on 2003-11-29 18:43 [#00970748]
Points: 2777 Status: Regular



::sniffs his crotch:: I'm sorry, but someone has to do it


 

offline nlogax from oh, you must be the brains (Norway) on 2003-11-29 18:44 [#00970750]
Points: 4653 Status: Regular



'ere, do a search on sniffing.


 

offline Jedi Chris on 2003-11-29 18:45 [#00970753]
Points: 11496 Status: Lurker | Followup to nanotech: #00970745



http://www.etherdetect.com/demo.htm

Cool demo


 

offline nlogax from oh, you must be the brains (Norway) on 2003-11-29 18:49 [#00970762]
Points: 4653 Status: Regular | Followup to Jedi Chris: #00970753



that might come in handy some day


 

offline Dozier from United States on 2003-11-29 22:34 [#00971022]
Points: 2080 Status: Lurker | Followup to nanotech: #00970745



great movie, if indeed the subject line is a play on a movie
quote...

or maybe i'm just stupid.


 

offline nanotech from Sukavasti Amitaba Pureland (United States) on 2003-11-29 23:15 [#00971036]
Points: 3727 Status: Regular | Followup to Dozier: #00971022



ravenous? yeah, i had to make it catchy 'cuz most of my
other "technical" topics go dwn the drain with hardly any
answers, and with me rambling on, and on for the bump.


 

offline xf from Australia on 2003-11-29 23:18 [#00971038]
Points: 2952 Status: Lurker



real sniffers are completely passive.

meaning there's no way in the fucking world you can tell if
you're being sniffed or not.


 

offline elusive from detroit (United States) on 2003-11-29 23:43 [#00971044]
Points: 18368 Status: Lurker | Show recordbag



WTF ARE YOU FUCKING SERIOS

dood no one can just SNIFF YER TRAFFIC

if so they have to have ACCESS TO THE ROOT VLAN UPLINK TO
THE ROUTER.

this means

they will only see your broadcasts (unless on a hub-type
segment)

or they have at the vLAN uplink to the router MIRRORED (span
port) and they are sniffing that port

THIS MEANS

THAT THEY WOULD HAVE TO HAVE DIRECT PHYSICAL ACCESS TO THE
ISP' SWITCHE AND ROUTERS

I DONT THINK SO BUDDY.

STOP FREAKING OUT

EJEEZOUS


 

offline elusive from detroit (United States) on 2003-11-29 23:44 [#00971046]
Points: 18368 Status: Lurker | Show recordbag



and if they are not on the same segment as you, then of
COURSE ....... htis isn't going to happen.

CHILL


 

offline princo from Shitty City (Geelong) (Australia) on 2003-11-29 23:59 [#00971052]
Points: 13411 Status: Lurker



Pantysniffer? Rad!


 

offline nanotech from Sukavasti Amitaba Pureland (United States) on 2003-11-30 00:02 [#00971053]
Points: 3727 Status: Regular | Followup to elusive: #00971044



actually, these people can very well do this.


 

offline elusive from detroit (United States) on 2003-11-30 04:25 [#00971138]
Points: 18368 Status: Lurker | Show recordbag



it is much more difficult than you may think ;)


 

offline nanotech from Sukavasti Amitaba Pureland (United States) on 2003-11-30 04:45 [#00971143]
Points: 3727 Status: Regular | Followup to elusive: #00971138



not when i live in a military installation where they've
told us that they can do this. (maybe a scare tactic, but
the comany that's contracted to give the base its internet
service kicks us off after 24 hrs us use [yes, dls line].
It's a security issue) Since they can do this, i'm sure that
the investagators can sniff me. They've told me personally
(since i work on the bases's military networks), that they
can sniff anyoen on base if need be.


 

offline xf from Australia on 2003-11-30 06:03 [#00971184]
Points: 2952 Status: Lurker



elusive: whu, vlan uplink traffic mirrored?

dood, hack teh gibson! damn blakhat hakers, wtf11?!??

nano: given whoever said that has access to any network
segments between you and your destination (routers, network
cabling, etc), they can certainly sniff you. of course, if
the data from you->destination is encrypted, it's not going
to be terribly useful ;-)



 

offline Jedi Chris on 2003-11-30 06:07 [#00971185]
Points: 11496 Status: Lurker | Followup to nanotech: #00971143



Maybe its time to change your deoderant if they can still
sniff you!

;)


 

offline nanotech from Sukavasti Amitaba Pureland (United States) on 2003-11-30 06:11 [#00971187]
Points: 3727 Status: Regular | Followup to xf: #00971184



any sugestions on propper encryption proggs?


 

offline xf from Australia on 2003-11-30 06:15 [#00971189]
Points: 2952 Status: Lurker



remote end needs to understand the encryption too, so
unfortunately it's not as easy as just downloading some
program that'll do it all for you.

typically, you look at encrypting the services you use, and
make sure the remote end you're talking to supports the
encryption. use the web? use https:// (ssl) sites with
important stuff; you should be doing this already without
even knowing it (credit cards, etc).

email? make sure you're using secure pop3 (ssl) or ssl-imap
instead of normal pop3/imap, which sends passwords/emails
over in plain text. of course, your email server needs to
support it.

instead of using ftp, use an alternative such as sftp
(secure ftp, ssh-style).

instead of using telnet, use ssh.

list goes on; the remote end needs to talk the same
encryption as you're sending to it, though.


 

offline xf from Australia on 2003-11-30 06:16 [#00971191]
Points: 2952 Status: Lurker | Followup to Jedi Chris: #00971185



... or start using deoderant

lolzroflwtf11!!


 

offline Jedi Chris on 2003-11-30 06:17 [#00971192]
Points: 11496 Status: Lurker | Followup to xf: #00971191



Hahahah


 

offline nanotech from Sukavasti Amitaba Pureland (United States) on 2003-11-30 06:19 [#00971193]
Points: 3727 Status: Regular | Followup to xf: #00971189



ssh, huh? never heard of dat one. What about sftp? Do ftp
servers need to be configured to suport sftp? is is that a
protocol that most tend to do as it is?


 

offline nanotech from Sukavasti Amitaba Pureland (United States) on 2003-11-30 06:20 [#00971194]
Points: 3727 Status: Regular | Followup to xf: #00971191



Could you explain what is "smelt" :P via sniffing? I'd
greatly like to read up on the mechanics.


 

offline xf from Australia on 2003-11-30 06:29 [#00971197]
Points: 2952 Status: Lurker



Yeah, most ftp servers won't support sftp, usually you need
to reimplement the server side of things.

If you've never heard of ssh, then you probably don't need
to know about it :-)

It all depends on how paranoid you are; you probably don't
need to encrypt *everything*.

Smelt? No idea.


 

offline elusive from detroit (United States) on 2003-11-30 06:30 [#00971198]
Points: 18368 Status: Lurker | Show recordbag



nanotech, you say "actually, these people can very well do
this. "

well you neglectced earlire in your post to say that YOU ARE
ON A MILITARY BASE, where all traffic SHOULD have an eye
kept on it (sorry, but true..)

and also that it's on the same segment.

it's not goign to be hard, there are PLENTY of great packet
decoders out there these days,


 

offline xf from Australia on 2003-11-30 06:30 [#00971199]
Points: 2952 Status: Lurker | Followup to xf: #00971197



actually, you'd be better off asking Jedi Chris about
'smelt' :P


 

offline elusive from detroit (United States) on 2003-11-30 06:32 [#00971200]
Points: 18368 Status: Lurker | Show recordbag



and yes XF,
if it's a switchd network you will not be able to "sniff"
the traffic - you will only see broadcasts and all
uni-traffic must be captured from the router uplink. it is
the only other point will traffic will go through.

there are "other" ways, but they require some expensive
equiment (cough, in my lab, cough).


 

offline xf from Australia on 2003-11-30 07:04 [#00971230]
Points: 2952 Status: Lurker



arp spoofing, etc?

yeah, it's not as easy as some think, but that said, it's
not impossible either, especially given if you're on the
same network segment (switch or not, although hubs make
things stupidly easy).


 

offline elusive from detroit (United States) on 2003-11-30 07:18 [#00971245]
Points: 18368 Status: Lurker | Show recordbag



arp spoofing will confuse the switch/router/hub.

Switches (unless in a sort of SPAN mode) will not actively
forward frames to 2 ports with the same MAC address unless
specifically configured (like a multi-trunk/multiple access
server).

The MAC table will continously be updated (MAC aging timers
will be relenquished) and frames will get forwarded to each
port, depending on the update of the FDB of the switch,

i dunno, there's ways, but they are unlikely.


 


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