TEXT 57
ATM.txt Guest on 12th August 2020 07:40:13 AM
  1. A. T. M.  Fraud Made Easy  
  2.  
  3. Have you ever looked longingly upon the sight of your local PULSE machine
  4. and thought, "There must be some way that I can make some money REAL easy
  5. here."?
  6.  
  7. Well, there is.  But it won't be easy.  Protection methods can be overcome,
  8. but the technology involved must be understood IN ITS ENTIRETY before an
  9. [PAUSE]       attempt at illegal access is to be made.  There are hundreds of people,
  10. guests of the state, that figured their plans infallible, only to fall
  11. victim to a well-hidden camera.
  12.  
  13. This article will not be a lesson on HOW to break into the machine, it is
  14. merely a summary of the operations involved with a normal ATM transaction.
  15. This information is being presented on a "for information's sake"-only
  16. basis.  I, Count Zero, do not promote nor remotely condone any illegal
  17. acts of any sort.  So there.
  18.  
  19.  
  20.  
  21. I.  MAGNETIC STRIP FORMAT
  22.  
  23. This would seem to be the most efficient method of trying to access illegal
  24. sums of cash.  You could:
  25.  
  26.                 a. steal somebody's card and PIN code
  27.                 b. synthesize a card
  28.                 c. attempt to "jackpot" the system
  29.  
  30. We will only look at option B.  As "A" is up to your own devices and "C" has
  31. several good text files written about it already.  So "B" it is.
  32.  
  33. [PAUSE]       Let's look at the format of the data written to the magnetic strips.  This
  34. has been taken from a recent HARTWELL, INC manual.
  35.  
  36. [ XX XX XX XX XX XX XX XX ] [ YYYY ] [ - 20 CHARS - ] [ ZZ ZZ ZZ ] [ CC CC ]
  37.  \-----------------------/  \------/ \--------------/ \----------/ \-------/
  38.    Your individual acct.      PIN      Name of card    Bank route    CHKSUM
  39.      number/serial code       Code        issuee       code/rem.
  40.                                                        access #
  41.  
  42. For validation, each entry is written twice but not written here for
  43. ease of typing.  But it is repeated in the form of:
  44. "ACCT NUM" "ACCT NUM" "PIN CODE" "PIN CODE" etc...
  45.  
  46. These codes may be examined by building a simple code-reader as many
  47. have done which can be easily interfaced to your IBM-PC.  Full plans
  48. to be put into a future CHiNA newsletter.
  49.  
  50. If you were to attempt to write a magnetic strip or change a currently
  51. existing one, you would need to be using a head-write circuit based on
  52. the popular Motorola BCX119221-A...C series of head control chips.
  53.  
  54. NOTE: Make sure to change the last 2 values!  They constitute the
  55. checksum of the entry.
  56. Merely add all existing characters written (only the first entry, not both
  57. [PAUSE]       of them) using the following chart:
  58.  
  59.                 CHARACTER               VALUE
  60.                 --------------------------------
  61.                 0..9                    0..9
  62.                 A..Z                    10..36
  63.                 EOL                     37
  64.                 EOT                     38
  65.                 CLR                     39
  66.                 HMX                     40
  67.                 PTT                     41
  68.                 RIA-1                   42
  69.                 RIA-2                   43
  70.  
  71. I doubt anyone in the communications biz needs an explanation of these terms
  72. so I'll move on.
  73.  
  74.  
  75. II.  ATM HARDWARE
  76.  
  77. Usually consists of:
  78.  
  79.                ------------------------------------
  80.                |                                  |
  81. [PAUSE]       \-----\        |                B                 |
  82. |  A  |        |                                  |
  83. \-----\        ------------------------------------
  84.                |                                  |
  85.                |     -----------     /---/  E     |
  86.                |    /          /    /   /    ---- |
  87.                |   /    C     /    / D /   F      |
  88.                |  /          /    /   /     ----  |
  89.                | ------------    /---/            |
  90.                |                                  |
  91.                ------------------------------------
  92.  
  93.  
  94. A. Camera Mount
  95. B. Hidden Voice-Activated recorder & printout link
  96. C. Display Monitor
  97. D. Options buttons
  98. E. Card Slot
  99. F. Receipt Slot
  100.  
  101. Your machine may vary slightly.  But the concept will almost always hold true.
  102. Simple rules for each.
  103.  
  104. A. Wear a paper bag or mask.  See also Part II A
  105. [PAUSE]       B. Do NOT speak.  This is the most crucial part!  See also Part II A
  106. C. Nothing
  107. D. Wear gloves
  108. E. See Part I
  109. F. TAKE YOUR RECEIPT AND BURN IT!!
  110.  
  111. One of the neat flaws in many machines made prior to 1989 involved the
  112. use of the "CANCEL" button.  This button was made to be pressed when the
  113. user decided, at any time during the transaction, that he didn't wish
  114. to continue.  The display would jump immediately to:
  115.  
  116. "TRANSACTION CANCELLED - CHOOSE ANOTHER?"
  117.  
  118. This was all well and good, but the machines did not disable this feature
  119. between the time your cash was dispensed and you were prompted for your
  120. next activity.  In effect, you could push the "CANCEL" button after your
  121. money has been withdrawn and it would not be added to your account record!
  122.  
  123. THIS STILL WORKS IN MANY PLACES!  OVER 85% OF ALL MACHINES MADE BEFORE MAR.
  124. 1989
  125. STILL HAVE NOT BEEN UPGRADED.
  126.  
  127. Although most machines of that period would only work if you were withdrawing
  128. amounts larger than $20 (usually $25 is the next possible choice!)
  129. [PAUSE]       This is ideal if you are using another's card!
  130.  
  131.  
  132. II A.  CAMERA/SOUND HARDWARE
  133.  
  134. You can go other routes when dealing with camera systems.  You do not have
  135. to wear a bag on your head (unless the cosmetic improvement is quite large)
  136. Thin alloy metal such as common aluminum/tin foil, which are full of
  137. impurities,
  138. react in a bizarre way when photographed through the special lenses that are
  139. commonly used.  The effect is to "blur" or "bleed" the image, rendering it
  140. indestinguishable from an accident in your local Sherwin-Williams store.
  141. Most people prefer to make a "headband" of this metal, lined with copper
  142. wire in a sine wave pattern when accosting a machine.  You should
  143. seriously consider this possibility!
  144. For further reading on this subject, consult:
  145.  
  146.                 BANKER'S WORLD - Apr 1989
  147.                         "Where Have All the Dollars Gone?"
  148.                         pp 24-29
  149.  
  150.                 P. I. - Apr 1989
  151.                         "The Last Straw"
  152.                         pp 37-41 (p 38 in particular has a nice
  153. [PAUSE]                                               diagram.  Fig 1)
  154.  
  155.  
  156. Sounds, these articles also suggest an indirect method of dealing with the
  157. voice-activated recording device.  Oddly, a pure square wave tone (roughly
  158. around 3100 hz) will cause a major screwup in the sound-sensing abilities
  159. of the recorder.  It usually will have to be replaced.  Suggested volume,
  160. given at 6" range is 8.5+ db.  Obviously, anything louder will do.
  161.  
  162. An interesting side-note is that this has become a past-time of suburban
  163. teenagers!
  164.  
  165. Well, hope this gets you started!  More will be coming in the next
  166. exciting file!

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