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                                .oO Phrack 50 Oo.

                            Volume Seven, Issue Fifty

                                      1 of 16

                                  Issue 50 Index

                                 P H R A C K   5 0

                                  April 09, 1997
                                "The Perfect Drug"

START the fireworks...
ALERT the mass media...
CUE up the Axel-F Beverley Hills Cop music...

                                Phrack 50 is here.

To celebrate this landmark event, for a limited time, we are offering *all*
Phrack issues (including this one) at a special "WE-MUST-BE-OUT-OF-OUR-MINDS"
rate of HALF-PRICE!!  That's right!  Now you can enjoy Phrack for 50% off
the standard price of free!  Now you can enjoy your favorite electronic
zine and still have enough money left over to get those breast implants! 


It seems, in recent months, the mass media has finally caught onto what we 
have known all along, computer security _IS_ in fact important.  Barely a
week goes by that a new vulnerability of some sort doesn't pop up on CNN.
But the one thing people still don't seem to fathom is that _WE_ are the
ones that care about security the most...  We aren't the ones that the
corporations and governments should worry about...  We are not the enemy.

Phrack is often described by the mass media as an 'Underground Hacker's Zine'
run by `irresponsible` youths.  Compare Phrack's distribution with that of
the security publications that charge just enough money to keep students
and interested outsiders from reading it...  Then decide who is  
`irresponsible`.  Phrack is often criticized by professionals as giving away 
tools to people who aren't responsible enough to use them.  The fact is, we 
are giving away tools to people who aren't rich enough to buy them.

The parallels between Internet packet sniffing and phone wire tapping are
enormous.  The abuses of wire tapping by government agencies are well 
documented.  Not so well documented, however, are similar abuses by these same
agencies across key Internet access points.  This is just another classic 
example of the Government trying to assert complete control.  The Internet is,
however, anarchistic by nature and dynamic by design.  It resists all attempts
at governing and all attempts at control.  

By providing a public compendium of the same knowledge, information and 
resources that all the money in the world can buy, we help ensure that the 
Internet will remain safe with the individual.  Knowledge is not power.  
Knowledge is _empowerment_.

This issue contains a great deal of C source code.  Somewhere in the
neighborhood of 5000 lines of C source.  To facilitate painless extraction
of the code and support files into an arbitrarily designated hierarchical
directory structure and still maintaining readability while in `zine`
format, we developed a custom extraction utility. (Good lord that was a
long sentence...)  Article 16 contains the source for extract.c, instructions
for compilation and use can be found therein.


Enjoy the magazine.  It is for and by the hacking community.  Period.

                Editors : daemon9[route], Datastream Cowboy
           Asst. Editor : Alhambra (appears courtesy of the guild corp.)
                 On ice : Voyager
                Mailboy : Erik Bloodaxe
                   News : Alhambra, disorder
 	          Elite : snocrash
             Best Coast : Left Coast
                Fatstar : loadammo
               Thinstar : nirva
          SPOOOOOOOOON! : sirsyko
Rocks the Fucking House : 16 Volt
            Bad at pool : the NSA
   Tip o' the black hat : omerta
           Birthday Boy : loki
             GET A LIFE : All you jennicam losers. (
Shout outs / Thank yous : mudge (cos he just plain rules), the Guild and
                          r00t, pyro, blaboo, o0, halflife, nihil (for
                          dealing with my daily whining, working 6848 hours
                          a week, and *still* providing the kickass article),
                          alhambra (for coming through in a big way for Phrack 
                          when other people let us down), mycroft (fruitbat),
                          Juliet (cookies)

Phrack Magazine V. 7, #50, April 09, 1997.   
Contents Copyright (c) 1996/7 Phrack Magazine. All Rights Reserved.  Nothing 
may be reproduced in whole or in part without written permission from the
editors.  Phrack Magazine is made available quarterly to the public, free of 
charge.  Go nuts people.  

Subscription requests, articles, comments, whatever should be directed to:


Submissions to the above email address may be encrypted with the following 
key (note this is a REALLY NEW key, we promise not to lose it this time): 

Version: 2.6.2


Phrack goes out plaintext...  You certainly can subscribe in plaintext

 			   .oO Phrack 50 Oo.
			   Table Of Contents
 1. Introduction                                       ... Phrack Staff   9K
 2. Phrack Loopback				       ... Phrack Staff  60K
 3. Line Noise				               ... various       72K 
 4. Phrack Prophile on Aleph1                          ... Phrack Staff   7K
 5. Linux TTY hijacking                                ... halflife      15K
 6. Juggernaut                                         ... route        123K
 7. SNMP insecurities                                  ... Alhambra      20K
 8. Cracking NT Passwords                              ... Nihil         17K
 9. SS7 Diverter plans                                 ... Mastermind    27K
10. Skytel Paging and Voicemail                        ... pbxPhreak     36K
11. Hardwire Interfacing under Linux                   ... Professor     11K
12. PC Application Level Security                      ... Sideshow Bob  21K
13. DTMF signalling and decoding                       ... Mr. Blue      17K
14. DCO Operating System                               ... mrnobody      16K
15. Phrack World News                                  ... Alhambra     110K
16. extract.c                                          ... Phrack Staff   2K



Every article in Phrack is written free of charge, for and by the hacking
community.  If you are a hack, phreak, student, professor, professional,
or even a loser with an idea and you have some knowledge or information
you would like to empart, there are thousands of readers who would love 
nothing more than to learn from you.  If you want to submit something 
anonymously, it will stay anonymous, if you want attributation, feel free to 
use your real name or a psuedonym.  The deadline for submissions to Phrack 51 is
July 25th, 1997, but the earlier the better.  If you are planning on writing an
article we'd like to hear from you as soon as possible.  

If you don't think you are going to be able to write an article, but you have
some comments about Phrack, commentary about the hacking world, funny stories,
exploits, news items, or just want to tell us about the government site you
just hacked (PGP'd and through an anonymous remailer PLEASE), we love getting
mail.  PGP key and e-mail address are above. 


" *pyro* phrack is my faith and the e-zine is my bible, you are one of my 
         high priests! "
                   	- Some IRC zealot 

" ...r00t and the guild.... Like peanut-butter and jelly -- you could have 
  one without the other, but *why* would you want to...? "
                      	- route