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Featured Replies

Posted

VSEC Hyper Crackme

Brief and useful
Find correct license key, don't try to patch file.


What comes within this crackme

+ Code Virtualization
+ Unique Junkcode Generation
+ Control-Flow Obfuscation


 

File Information

Submitter Gladiator

Submitted 03/05/2025

Category CrackMe

View File

VSEC Hyper Crackme

Solved by kao

Go to solution
  • Solution
Spoiler
Key: 26534

 

There's too much junk code and it's located in the wrong places. IDA ignores most of it and the rest can be NOP-ped out in huge blocks.
The crackme would be much harder, if the useful VM handler instructions were placed in between the junk code. :)

43 minutes ago, kao said:
  Reveal hidden contents
Key: 26534

 

There's too much junk code and it's located in the wrong places. IDA ignores most of it and the rest can be NOP-ped out in huge blocks.
The crackme would be much harder, if the useful VM handler instructions were placed in between the junk code. :)

Damn it! You beat me by 20 minutes! 

38 minutes ago, 14yoKID said:

You beat me by 20 minutes! 

You could still tell us how you solved it. :) There's always something to learn..

  • Author
2 hours ago, kao said:
  Hide contents
Key: 26534

 

There's too much junk code and it's located in the wrong places. IDA ignores most of it and the rest can be NOP-ped out in huge blocks.
The crackme would be much harder, if the useful VM handler instructions were placed in between the junk code. :)


Good job kao, would you like to share some details about what have you done ?

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