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Text File
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1990-04-27
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5KB
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78 lines
Beverly Hills Cop
Cracked by R. Bubba Magillicutty
Protection: Copy Lock
Graphics: EGA only!
Controls: Keyboard/joystick
Sound: Bleep, bloop, honk - IBM speaker
This thing has been done for over a week now, but I've been lazy in
putting it out. I never could get the little "Cracked by R. Bubba" thing
working perfectly. I think the CALL statement isn't properly returning the
correct SP value. INT 21, AH=9 doesn't have a count value; at least my
documentation says it doesn't. I'm too lazy to figure it out. That little
blurb is encoded inside Copy Lock, and I have to go through 14 levels of
encryption to make any changes on it (done in two steps, though - not 14.)
Just pretend I'm being extra obnoxious and wanted to show my name twice.
So we've done Copy Lock at last. Without any demons. Some people want
to know why we prefer byte cracking to demons. Well, it's because we CAN
byte crack these things. Copy Lock wasn't too hard, it just took a lot of
perseverance to get by the encryption. The fact that I get $50 for some of
these byte cracks has very little to do with it. Well, okay... Let's be
realistic.
I hear The Knack managed to un-Copy Lock a program completely. That's
pretty impressive too. You don't have to know anything about Copy Lock to do
it that way, but you have to know a lot about DOS and EXE headers. All Copy
Locked stuff that I've messed with so far are packed EXEs, though I never did
look at Hard Drivin'. Congratulations... Nice to know that the harder they
make this stuff, the more skilled crackers become.
Okay, on to the game. Beverly Hills Cop is just another stupid import.
Better than some, but not much. Yes, the text shimmered and shook just as
much on the originals as it does now. And occasionally when you tell it you
want to play the entire game instead of practicing, it will lock up. After
playing the game with the originals a couple dozen times, I managed to lock
those up to. So it's not the crack. The crack doesn't do all that much. It
just sticks a 4-byte key into memory, then jumps over the INT 13 junk. When
it comes down to it, Copy Lock is really easy. You just have to understand
how it works.
I've included the docs with this thing. Should please the NYC people to
no end. I'd hate for them to have to play a game with no docs. They're
about a 3rd of a page and written by a bonehead (originally written - I don't
mean typed up by!) But they do list the commands, which I generally include
anyway. Enjoy this game if you can. Watch for Castle Master tomorrow or the
day after. I just need to get the 4-byte key from Candyman then spend an 20
minutes re-writing my Copy Lock unencryptor, since every Copy Locked program
uses completely different encryption.
-- R. Bubba Magillicutty
Greets to The Knack - Nice job! You can be awful impressive when you're not
being insulting (funny, they say that about me too.)
And to the demon writers: NYC and Northwind of INC (my hero)
If you want to learn to write a demon, dig up $24.95 and go buy Memory
Resident Programming on the IBM PC by Thomas A. Wadlow, published by
Addison-Wesley. You only have to read through chapter 5 to be able to make
an INT 13 Copy Lock demon. Read on through 6 if you want to write a
FiRM-style loader. Watch for the THG Demon Contruction Set soon! Why miss
out on the trend? For more info call my BBS, The Computer is Your Friend.
┌─────────────────┐
│The Humble Boards│
┌────────────╘─────────────────╛─────────────┐
│Candyland (615) 333-6561│
│The Computer is Your Friend (415) 234-4588│
│HMS Bounty (215) 873-7287│
│HMS Bounty Line 2 (215) 873-8620│
│The Badlands (904) PRI-VATE│
│The Slave Den (904) 376-1117│
│Overkill (805) 258-4756│
│Plato's Place node1 - 14.4 (618) 254-5263│
│Plato's Place node2 - 14.4 (618) 254-0637│
│Plato's Place node3 - 2400 (618) 254-0509│
│The P.I.T.S. (718) 921-3107│
└────────────────────────────────────────────┘