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CORE Keygen Issue

After struggling with several versions of CoreKeyGen created by some "minamoto", a new version appeared. This version is especially tricky and appears to modify the actual binary using dylib known as libbassmod.dylib (this is in the Mac OS folder for Mac).

Has anyone ever encountered this and can give me advice on how to stop it?

If so, how can I stop the keygen? it looks like the library can see what is calling my application and somehow stop them, I'm not sure.

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I doubt "Minamoto" here is the real guy you are looking for, maybe someone just wanted to make fun of you. People on stage won't have time to read the message here, and don't reply with their real nickname.

Back to your questions, libbassmod.dylib is used to play audio modules. It is often used in Windows key generators with Scene to play audio module formats like XM, IT, S3M, MOD, MTM, UMX. you can read more details here:

http://www.un4seen.com/



And on how to deal with them or make fun of them on your blog, IMO this will only bring you problems (especially some groups like this, CORE (which stands for "Challenge of Reverse Engineering") google for it if you want to know more about this).

Suffice it to say that if I were you, I would spend my time improving my applications instead of protecting against coding. This is the right and only way to get more customers (and trust me, they hate software protection). Those using cracks will never buy anything from you (just check out all those thinsg on MSJ), they only use the cracked version of your app because they can use it for free, so you don't really lose anything.

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libbassmod.dylib is for playing background music ...



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What? A key signal usually means that someone changed the key validation algorithm to create a custom algorithm that suits yours. There is nothing you can do to stop this other than using PKI or some kind of whitelisting of keys. Even then, they can just fix your program. If you want to know what the keygens do, you need to disassemble it with a disassembler like Ollydbg, IDA Pro, etc. This should be pretty easy as keygens are tiny programs, although this is probably a waste of time ...

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