~sprin5
Fri, Jan 26, 2001 (15:01)
seed
Directv, Dish, and big dish are the big three of satellite tv.
I have Directv and a 10' dish in my backyard, so I'm a modest expert.
~sprin5
Fri, Jan 26, 2001 (15:01)
#1
I just got this *great* email:
please distribut freely and widely
from the not-as-think-as-you-dumb-we-were dept.
4 or more years ago DirecTV launched its service. DirecTV was one of
the very first large distributors of smart card technology in their
product. So much so, that Hughes corp (the primary owner of DirecTV)
decided to create their own smart cards. Each receiver has a smart card
located inside that is keyed to the subscriber, and actively
participates in the decryption of the digital satellite video stream.
However, considering Hughes decided on this technology when it was
virtually in its infancy, they made several mistakes. The cracker
community caught onto these mistakes, and there has been a war between
DirecTV and the crackers ever since. For the past two or more years,
it was apparent the crackers would win this war, completely opening the
DirecTV signal. However, over the last 6 months, DirecTV has fought
back with a vengeance, displaying the most extensive technical campaign
against the cracking of their product...
One of the original smart cards, entitled 'H' cards for Hughes, had
design flaws which were discovered by the cracking community. These
flaws enabled the brighter of the crackers (not the usual
script-kiddies, but the rare smart ones) to reverse engineer their
design, and to create smart card writers. The writers enabled the
crackers to read and write to the smart card, and allowed them to
change their subscription model to receive all the channels. Since the
technology of satellite television is broadcast only, meaning you
cannot send information TO the satellite, the system requires a phone
line to communicate with DirecTV. The crackers could re-write their
smart cards and receive all the channels, and unplug their phone lines
leaving no way for DirecTV to track the abuse. DirecTV had built a
mechanism into their system that allowed the updating of these smart
cards through the satellite stream. Every receiver was designed to
'apply' these updates when it received them to the cards. DirecTV
applied updates that looked for cracked cards, and then attempted to
destroy the cards by writing updates that disabled them. The cracking
community replied with yet another piece of hardware, an 'unlooper,'
that repaired the damage. The cracker community then designed software
that trojanized the card, and removed the capability of the receivers
to update the card. DirecTV could only send updates to the cards, and
then require the updates be present in order to receive video. Each
month or so, DirecTV would send an update. 10 or 15 minutes later, the
cracking community would update the software to work around the latest
fixes. This was the status quo for almost two years. 'H' cards
regularly sold on eBay for over $400.00. It was apparent that DirecTV
had lost this battle, relegating DirecTV to hunting down Web sites that
discussed their product and using their legal team to sue and
intimidate them into submission.
"Four months ago, however, DirecTV began sending several updates at a
time, breaking their pattern. While the cracking community was able to
bypass these batches, they did not understand the reasoning behind
them. Never before had DirecTV sent 4 and 5 updates at a time, let
alone send these batches every week. Many postulated they were simply
trying to annoy the crackers into submission. The updates contained
useless pieces of computer code that were then required to be present
on the card in order to receive the transmission. The crackers
accommodated this in their software, applying these updates in their
cracking software. Not until the final batch of updates were sent
through the stream did the crackers understand DirecTV. Like a final
piece of a puzzle allowing the entire picture, the final updates made
all the useless bits of computer code join into a dynamic program,
existing on the card itself. This dynamic program changed the entire
way the older technology worked. In a masterful, planned, and
orchestrated manner, DirecTV had updated the old and ailing technology.
The crackers responded, but cautiously, understanding that this new
ability for DirecTV to apply more advanced logic in the receiver was a
dangerous new weapon. It was still possible to bypass the protections
and receive the programming, but DirecTV had not pulled the trigger of
this new weapon.
Last Sunday night, at 8:30 pm est, DirecTV fired their new gun. One
week before the Super Bowl, DirecTV launched a series of attacks
against the crackers of their product. DirecTV sent programmatic code
in the stream, using their new dynamic code ally, that hunted down
cracked smart cards and destroyed them. The IRC DirecTV channels
overflowed with thousands of people who had lost the ability to watch
their stolen TV. The crackers by and large lost not only their ability
to watch TV, but the cards themselves were likely permanently
destroyed. Some estimate that in one evening, 100,000 smart cards were
destroyed, removing 98% of the crackers' ability to steal their signal.
To add a little pizzazz to the operation, DirecTV personally "signed"
the anti-cracker attack. The first 8 computer bytes of all cracked
cards were rewritten to read "GAME OVER".
For more information, visit http://www.hackhu.com