text stringlengths 0 1.99k |
|---|
Note from Elric: This file was written by the sysop of a board for computer |
security people (run on a CoCo), as far as I know the board no longer exists, |
it was being crashed by hackers too much... (hehe). |
--------------------- |
FOR SEVERAL YEARS, I ACCEPTED CERTAIN BITS OF MISINFORMATION AS |
TECHNICALLY ACCURATE, AND DIDN'T PROPERLY PURSUE THE MATTER. SEVERAL FOOLS |
GAVE ME FOOLISH INFORMATION, SUCH AS: A TAP INTERRUPTS COMPUTER DATA |
TRANSMISSIONS; DATA COULD BE PICKED UP AS RF EMANATIONS BUT IT WAS A MASS OF |
UNINTELLIGIBLE SIGNAL CAUSED BY DATA MOVING BETWEEN REGISTERS; ONE HAD TO BE |
IN 'SYNC' WITH ANY SENDING COMPUTER; DATA COULDN'T BE READ UNLESS YOU HAD A |
DIRECT MATCH IN SPEED, PARITY & BIT PATTERN; AND ONLY A COMPUTER OF THE SAME |
MAKE AND MODEL COULD READ THE SENDING COMPUTER. THIS IS ALL PLAIN SWILL. IT |
IS IN FACT, AN EASIER CHORE TO TAP A COMPUTER THAN A TELEPHONE. THE TECHNIQUE |
AND THE EQUIPMENT IS ALMOST THE SAME, BUT THE COMPUTER LINE WILL BE MORE |
ACCURATE (THE TWO COMPUTERS INVOLVED, HAVE ERROR CORRECTING PROCEDURES) AND |
CLEARER (DIGITAL TRANSMISSIONS HAVE MORE DISTINCT SIGNALS THAN ANALOG |
TRANSMISSIONS). |
FIRST, RECOGNIZE THAT NEARLY ALL DATA TRANSMISSIONS ARE SENT IN CLEARTEXT |
ASCII SIGNALS. THE LINES CARRYING OTHER BIT-GROUPS OR ENCIPHERED TEXTS ARE |
RARE. SECOND, THE SIGNAL APPEARS ON GREEN AND RED (WIRES) OF THE PHONE LINE |
('TIP' AND 'RING'). THE DATA IS MOST LIKELY ASYNCHRONOUS SERIAL DATA MOVING |
AT 300 BAUD. NOW THAT 1200 BAUD IS BECOMING MORE CHIC, YOU CAN EXPECT TO FIND |
A GROWING USE OF THE FASTER TRANSMISSION RATE. FINALLY, YOU DON'T NEED TO |
WORRY ABOUT THE PROTOCOL OR EVEN THE BAUD RATE (SPEED) UNTIL AFTER A TAPED |
COPY OF A TRANSMISSION IS OBTAINED. |
IN A SIMPLE EXPERIMENT, A TAPED COPY OF A DATA TRANSMISSION WAS MADE |
WITH THE CHEAPEST OF TAPE RECORDERS, TAPPING THE GREEN AND RED LINES BEYOND |
THE MODEM. THE RECORDING WAS THEN PLAYED INTO A MODEM AS THOUGH IT WERE AN |
ORIGINAL TRANSMISSION. AT THAT POINT, HAD IT BEEN NECESSARY, THE PROTOCOL |
SETTINGS ON RECEIVING TERMINAL COULD HAVE BEEN CHANGED TO MATCH THE TAPE. NO |
ADJUSTMENTS WERE NECESSARY AND A NICE, CLEAR ERROR-FREE DOCUMENT WAS RECEIVED |
ON THE ILLICIT VIDEO SCREEN AND A NEAT HARD-COPY OF THE DOCUMENT CAME OFF THE |
PRINTER. THE MESSAGE WAS INDEED CAPTURED, BUT HAD IT BEEN AN INTERCEPTION |
INSTEAD OF A SIMPLE MONITORING, IT COULD HAVE BEEN ALTERED WITH A SIMPLE WORD |
PROCESSOR PROGRAM, TO SUIT ANY PURPOSE, AND PLACED BACK ON THE WIRE. |
WERE I TO HAVE AN INTEREST IN INFORMATION ORIGINATING FROM A |
PARTICULAR COMPANY, AGENCY, OR OFFICE, I THINK THAT I WOULD FIND IT FAR MORE |
PRODUCTIVE TO TAP A DATA TRANSMISSION THAN TO TAP A VOICE TRANSMISSION, AND |
EVEN MORE REWARDING THAN GETTING HARDCOPY DOCUMENTS. |
*SIGNIFICANT & IMPORTANT INFORMATION IS MORE CONCENTRATED IN A DATA |
TRANSMISSION. |
*SIGNIFICANT & IMPORTANT INFORMATION IS MORE EASILY LOCATED IN DATA |
TRANSMISSIONS THAN IN MASSES OF FILES OR PHONE CALLS. |
*TRANSMITTED DATA IS PRESUMED TRUE, AND WHEN ALTERATION IS DISCOVERED, |
IT'S READILY BLAMED ON THE EQUIPMENT. |
*THE LAWS CONCERNING TAPS ON UNCLASSIFIED AND NON-FINANCIAL COMPUTER |
DATA ARE EITHER QUITE LACKING OR ABJECTLY STUPID. |
THE POINT OF ALL THIS IS THAT THE PRUDENT MANAGER REALLY OUGHT TO ENCRYPT ALL |
DATA TRANSMISSIONS. ENCRYPTION PACKAGES ARE CHEAP (A 'DES' PROGRAM IS NOW |
PRICED AT $30) AND ARE EASY TO USE. |
------------------------------- |
==Phrack Inc.== |
Volume Two, Issue 18, Phile #1 of 11 |
Index |
===== |
June 7, 1988 |
Well, Phrack Inc. is still alive but have changed editors again. I, |
Crimson Death am now the new editor of Phrack Inc. The reason why I am the |
new editor is because of the previous editors in school and they did not just |
have the time for it. So, if you would like to submit an article for Phrack |
Inc. please contact: Crimson Death, Control C, or Epsilon, or call my BBS |
(The Forgotten Realm) or one of the BBSes on the sponsor BBS listing (Found in |
PWN Part 1). We are ALWAYS looking for more files to put in upcoming issues. |
Well, that about does it for me. I hope you enjoy Phrack 18 as much as we at |
The Forgotten Realm did bringing it to you. Later... |
Crimson Death |
Sysop of The Forgotten Realm |
------------------------------------------------------------------------------ |
This issue of Phrack Inc. includes the following: |
#1 Index of Phrack 18 by Crimson Death (02k) |
#2 Pro-Phile XI on Ax Murderer by Crimson Death (04k) |
#3 An Introduction to Packet Switched Networks by Epsilon (12k) |
#4 Primos: Primenet, RJE, DPTX by Magic Hasan (15k) |
#5 Hacking CDC's Cyber by Phrozen Ghost (12k) |
#6 Unix for the Moderate by Urvile (11k) |
#7 Unix System Security Issues by Jester Sluggo (27k) |
#8 Loop Maintenance Operating System by Control C (32k) |
#9 A Few Things About Networks by Prime Suspect (21k) |
#10 Phrack World News XVIII Part I by Epsilon (09k) |
#11 Phrack World News XVIII Part II by Epsilon (05k) |
============================================================================== |
==Phrack Inc.== |
Volume Two, Issue 18, Phile #10 of 11 |
PWN PWN PWN PWN PWN PWN PWN PWN PWN PWN PWN PWN PWN |
PWN PWN |
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