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		| opcode0x90 Cheater
 
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 Joined: 05 Aug 2006
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				|  Posted: Tue Mar 06, 2007 10:01 am    Post subject: [crackme] Opcode0x90's Challege |   |  
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				| My first crackme. You are allowed to patch it.  If you done so, submit a copy of patched crackme as proof. 
 Have phun.
 
 Note: You have to key in the code in one pass. If you backspace it will considered as wrong. This was a bug, but I am too lazy to fix it.
  Anyway it wont mess up with the final outcome. |  | 
	
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		| DeletedUser14087 I post too much
 
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 Posts: 3069
 
 
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				|  Posted: Tue Mar 06, 2007 10:11 am    Post subject: |   |  
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				| lol,lets give it a try =] |  | 
	
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		| nix Grandmaster Cheater
 
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 Joined: 30 Oct 2006
 Posts: 954
 Location: Singapore
 
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				|  Posted: Tue Mar 06, 2007 10:12 am    Post subject: |   |  
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				| casper the unfriendly ghost giving a try ? _________________
 
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		| SunBeam I post too much
 
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 Joined: 25 Feb 2005
 Posts: 4023
 Location: Romania
 
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				|  Posted: Tue Mar 06, 2007 10:45 am    Post subject: |   |  
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				| Themida. |  | 
	
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		| appalsap Moderator
 
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 Posts: 6753
 Location: Pakistan
 
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				|  Posted: Tue Mar 06, 2007 10:48 am    Post subject: |   |  
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				| And once a crackme is packed it loses its crackme title and becomes an unpackme. |  | 
	
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		| Uligor Grandmaster Cheater
 
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 Joined: 21 Jan 2006
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				|  Posted: Tue Mar 06, 2007 11:09 am    Post subject: |   |  
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				| Done. 
 EDIT: You might need to refresh if you don't see anything.
 
 Nice encryption keys btw. ;x (The allocated memory ones, not the looping overlapping XOR >=()
 _________________
 
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		| compactwater I post too much
 
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				|  Posted: Tue Mar 06, 2007 11:23 am    Post subject: |   |  
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				| Dang, didn't even get as chance.... 
 EDIT:
 Grammar plz?
 "You have Enter the code wrong"
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		| SunBeam I post too much
 
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 Posts: 4023
 Location: Romania
 
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				|  Posted: Tue Mar 06, 2007 11:41 am    Post subject: |   |  
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				| Good job, Uli  I'm still battling its unpacking, rather than reversing in-code   |  | 
	
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		| ottoshafer Cheater
 
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 Joined: 22 Oct 2006
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				|  Posted: Tue Mar 06, 2007 12:32 pm    Post subject: |   |  
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				| what do you guys use to look at the exe file?  Sorry for asking such a stupid question, but i want to learn and knowing what tools to use helps alot :S. |  | 
	
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		| SunBeam I post too much
 
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 Location: Romania
 
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				|  Posted: Tue Mar 06, 2007 12:53 pm    Post subject: |   |  
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				| @Opcode0x90: Me and Uligor are arguing on whether you used any protection on the file. To me it looked like Themida, based on file structure and allocations :S Ploks, tell us... |  | 
	
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		| opcode0x90 Cheater
 
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 Joined: 05 Aug 2006
 Posts: 27
 
 
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				|  Posted: Tue Mar 06, 2007 9:30 pm    Post subject: |   |  
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				| @Uligor: Obvious eh? Protection is nothing without enforcement   
 @appalsap: Its not packed. Not in any sense of encryption or compression.
 
 @Sunbeam: I "borrowed" that trick from Themida.
  But I didnt protect it using Themida, if thats what you meant. 
 Anyone willing to reverse the eval function to get the code?
   
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 Update 04/09/2007:
 
 Full solution by alex_ls, finally.
   
 Ignore the false alarm by your AV.
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