WHY PATCHING WHILE SERIAL NUMBER IS FISHY


PrintScreen v1.3.0
A Cracking Tutorial
by ASTAGA [D4C/C4A]


ABOUT THE PROGRAM 

PrintScreen is a utility program that brings back the
"Print Screen" key to Windows 95, 98 and NT users.

PrintScreen is a great tool to have on hand for easily
capturing error messages that pop up with application
and system problems. Never again will you need to
tediously hand-write the text of those messages to
relay them to tech support personnel.



BACKGROUND INFORMATION


Program Name: PrintScreen.exe
Platforms: Windows 95/98/NT
Free trial period: 30 days
Registration cost: $10 US$.
Current version: 1.3.0
Version date: 30-Jan-2000
Web site: www.donth.com
Author : Joseph L. Donth



HOW TO FISH SERIAL NUMBER by USING SOFTICE


1.  Run the program, click REGISTER button and keyed-in fake
    reg code = 73881050

    Do not click OK button yet.


2.  Load SoftIce and create a new breakpoint : 

	bpx hmemcpy
	Press F5

3.  Click OK button now, and you'll break in SoftIce again.
    Press F11 once and press F12 several times until you see
    this below snippet codes. 


	__________________________________________________________________
	
	015F:0044CE06  E861E0FDFF          CALL   0042AE6C <== break here
	015F:0044CE0B  8B55D8              MOV    EDX,[EBP-28]
	015F:0044CE0E  8B45F8              MOV    EAX,[EBP-08] <== D EDX
	015F:0044CE11  E88E6BFBFF          CALL   004039A4 
	........
	........ 
	________________________PRINTSCREEN!CODE+0004BE06_________________


	Break due to BPX KERNEL!HMEMCPY
	Break due to G 
 	: bd  *   [enter] 
	: BPX 015F:0044CE06  [enter] 
	: Press F10 2 times and display EDX register,  your fake reg code 
        appear in the Data Window at virtual address 0167:00BCB6E0  .
	: BPM 0167:00BCB6E0   [enter] 
	: Press X or F5


    You'll break again in SoftIce and see these below snippet codes :

	_________________________________________________________________

	015F:00403D05  8B0E                MOV       ECX,[ESI]   
	015F:00403D07  8B1F                MOV       EBX,[EDI]  <== here
	015F:00403D09  39D9                CMP       ECX,EBX   <== D EDI 
	015F:00403D0B  7558                JNZ       00403D65 
	.....
	..... 
	__________________________ PRINTSCREEN!CODE+2D05  ________________


	Break due to BPMB #0167:00BCB6E0 RW DR3 
	Press F10  once
	: ? ecx  [enter]
	: 38383337  0943207223  "8837"  ==> part of your fake code
	: ? ebx  [enter]
	: 30363130 0808857904 "0610"  ==> part of the real code 
      : d esi  [enter]  ===> your fake code at 
      : d edi  [enter]  ===> did you see   0160-1920-7875-7537 at
 			         0167:00BC808C . Write down this potential 
                             reg code.  Scroll up one line above you 
                             will see your own product ID ( in my case 
                             is 5556-5841-9770-4015 ) . 
	: bd *
	: F5  to return to registration dialog box


4.  Repeat registration procedures, and keyed-in  0160-1920-7875-7537 
    as your registration code. 
    You're registered. 


5.  Where the hell is my registration info is stored ??

	-  The correct registration code is stored in the HKCR and HKLM
	   registry as follows ( before it's registered ) :

REGEDIT4

[HKEY_CLASSES_ROOT\CLSID\{F291C121-70E0-11D3-AA01-E00DCCB90001}]

[HKEY_CLASSES_ROOT\CLSID\{F291C121-70E0-11D3-AA01-E00DCCB90001}\ProgID]
@="008FFD"

[HKEY_CLASSES_ROOT\CLSID\{F291C121-70E0-11D3-AA01-E00DCCB90001}\Mask]
@="41AC5E55"

REGEDIT4

[HKEY_LOCAL_MACHINE\Software\CLASSES\CLSID\{F291C121-70E0-11D3-AA01-E00DCCB90001}]

[HKEY_LOCAL_MACHINE\Software\CLASSES\CLSID\{F291C121-70E0-11D3-AA01-E00DCCB90001}\ProgID]
@="008FFD"

[HKEY_LOCAL_MACHINE\Software\CLASSES\CLSID\{F291C121-70E0-11D3-AA01-E00DCCB90001}\Mask]
@="41AC5E55"


6.  How can I practise with another registration key ?

	-  I strongly recommended you not to do this !


END NOTES

   This program is sold as shareware, so you can try before you buy.  
   This is convenient for you, saves expenses by dispensing with all 
   that packaging, and cuts out the middle person.  So it is cheap, 
   but it is not free.  
   If you like the program, and you will, be sure to register and pay.
   To keep shareware prices low,  users must do the right thing: 
   Register, pay up, and smile/grin at yourself in the mirror.

   Do not distribute your crack release based on this tutorial, because
   you become a LAMER(s)!!!!!!!!
   ( tHATDUDE (PC97) defined LAMER(s) is the guy who sits in front of
   personal computer, using Hex Editor, ripping off other group(s)
   crack release, repacking (distro) them under his name. 
   Adopted from newsgroup alt.cracks, alt.crackers - February 1997 ) 

    More about LAMER(s):
	lamer /n./ [prob. originated in skateboarder slang]
	Synonym for luser, not used much by hackers but common among warez 
	d00dz, crackers, and phreakers. Oppose elite. Has the same connota
	tions of self-conscious elitism that use of luser does among 
	hackers.
    < SOURCE: http://sagan.earthspace.net/jargon/jargon_27.html >


 _ Never attribute to malice that which is adequately explained by stupidity _


ASTAGA [D4C/C4A] tute-PrintScreen130.zip
[EOF] 10/31/00 6:32:06 PM