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'[OT] FuzzyNet, MirrorNet, etc for messing with WiF'
2010\07\12@181116 by Vitaliy

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I remember someone posting a link to a page where an evil webmaster routed
WiFi traffic through a server he set up, that would manipulate images (make
them upside down, blur, etc) before presenting them to the user. My keyword
search turned up nothing for some reason.

Vitaliy

2010\07\12@182609 by Alex Harford

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On Mon, Jul 12, 2010 at 3:09 PM, Vitaliy <spam_OUTpiclistTakeThisOuTspammaksimov.org> wrote:
> I remember someone posting a link to a page where an evil webmaster routed
> WiFi traffic through a server he set up, that would manipulate images (make
> them upside down, blur, etc) before presenting them to the user. My keyword
> search turned up nothing for some reason.

http://www.google.ca/search?hl=en&q=wifi+proxy+prank

A few links from the top:
www.ex-parrot.com/pete/upside-down-ternet.html

2010\07\12@190054 by Nathan Nottingham

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http://www.ex-parrot.com/~pete/upside-down-ternet.html

Google terms were "wifi leech mangle"  Third result  :)



On Jul 12, 2010, at 16:09 PM, Vitaliy wrote:

> I remember someone posting a link to a page where an evil webmaster routed
> WiFi traffic through a server he set up, that would manipulate images (make
> them upside down, blur, etc) before presenting them to the user. My keyword
> search turned up nothing for some reason.
>
> Vitaliy
>
> --

2010\07\12@201002 by Vitaliy

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Nathan, Alex: perfect, exactly what I was looking for. :)

Before anyone asks.. no real application, the subject came up in a recent
conversation and I promised to find the link.

2010\07\13@081656 by Olin Lathrop

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Vitaliy wrote:
> Nathan, Alex: perfect, exactly what I was looking for. :)
>
> Before anyone asks.. no real application, the subject came up in a
> recent conversation and I promised to find the link.

I think that if you really want to be mischievous, you randmoly corrupt a
few bits here and there in TCP packets, and of course update the checksum
accordingly.  You make the probability low enough so that web pages appear
to work most of the time, but there's about 0 chance of downloading anything
more than a few 10s of Kbytes intact.


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2010\07\13@084244 by Alan B Pearce

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> I think that if you really want to be mischievous, you randmoly
corrupt a
> few bits here and there in TCP packets, and of course update the
checksum
> accordingly.  You make the probability low enough so that web pages
appear
> to work most of the time, but there's about 0 chance of downloading
anything
> more than a few 10s of Kbytes intact.

This sounds like the sort of mischievousness that drained a reservoir
... ;)))))))

I still have a copy of the mail with that story ...
--
Scanned by iCritical.

2010\07\13@100854 by John Ferrell

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I understand that many folks live in an environment where cyber
vandalism is the norm but I take a different stance on WIFI sharing. The
only networks that I administer are church & family. My policy has been
to allow (and encourage) use by all. Visitors to our homes who bring
their laptops can always get to the internet without asking. I have
found that other churches have open systems that work well in the
parking lots for those who are traveling and might appreciate the
wireless access.

Family health issues have required that I have spent a lot of time in
medical facilities over the past several years. Most of them now provide
open internet access. I am grateful for the hospitality.

However, it would be nice to pass through a screen that identifies the
provider and any other relevant services (think church
services/newsletter, etc.) .

John Ferrell W8CCW

"Arizona: The Old Nations New Capitol"


On 7/12/2010 6:09 PM, Vitaliy wrote:
> I remember someone posting a link to a page where an evil webmaster routed
> WiFi traffic through a server he set up, that would manipulate images (make
> them upside down, blur, etc) before presenting them to the user. My keyword
> search turned up nothing for some reason.
>
> Vitaliy
>
>    

2010\07\13@111334 by RussellMc

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> I understand that many folks live in an environment where cyber
> vandalism is the norm but I take a different stance on WIFI sharing. The
> only networks that I administer are church & family. My policy has been
> to allow (and encourage) use by all. Visitors to our homes who bring
> their laptops can always get to the internet without asking. I have
> found that other churches have open systems that work well in the
> parking lots for those who are traveling and might appreciate the
> wireless access.

Our church WiFi access point is located in a lower hall in a hollow of
ground. It has never had security applied (my choice). Range is
limited unless you know it is there and are "closish" or have a high
gain antenna. So far (many years) no problems. That could of course
change at any moment, but it is extremely useful for such things to
"just work".

On a few occasions in HK when the internet access that was meant to
work didn't I have been pleased that there are a few systems , of the
many almost invariably present but usually secured, that have allowed
me the email access that I invariably need in such cases. AFAIK HK
costs for typical users tends to be access rather than bandwidth
biased - but hotels charge a ludicrous amount in inflexible
arrangements - and the (recommended) 'low cost dive'* where I usually
stay provides access at no extra charge. Despite this, when I freeload
I'm conscious that such activity is potentially and/or actually
theft** and that I am opening my system up to additional risks.
(Comodo seems to work well).

Free airport accesssing randomly discovered access points can be
risky. HK provides free official service. Some other "harmonious
societies" (including other than C')  (thanks Vitaliy) have notionally
free access but require passsport number, hat size and rights to soul
of eldest child before providing access. I have read of people
providing "free" access in such places from roaming gateways which
then provide the baddies with acces to your data stream. On one
occasion after logging into the HK airport system I found at next
login that my access to my Google account was blocked - password
invalid. I reset it using webmail access via their alternative email
address password change facility and there seemed no damage done. It
MAY be that that was a random unrelated event but as it is the only
time it has ever occurred I suspect that I had a close brush with
someone running a sniffer program or similar.

I've also occasionally logged into a public system and dropped into a
prior open session because somebodt else failed to log out before
closing the browser. Always worth careful checking your logout if one
is obliged to use Internet Cafes etc. I use "In private" access where
available in such cases BUT this is usually not available as cafe
systems usually tightly limit available features.

If you want access to our system it works best from the conference
table in the lower hall or the manse dining room.

Back to work :-). To bed early / up VERY early to see if it works better ... .


   Russell

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