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zart
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 Posted: Tue Sep 11, 2007 9:14 pm Post subject: [tutorial] crackme.de keygen |
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I just wrote this up today at work, figured you guys may like to read it.
It's about patching simple anti-debugs, nag screens, fishing a serial, making a keygen then fixing a bug in the crackme!
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haha01haha01
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| Posted: Tue Sep 11, 2007 11:41 pm Post subject: |
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| y every1 post keygens.... its sooo boring... crackmes are way more fun. |
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haha01haha01
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| Posted: Wed Sep 12, 2007 7:35 am Post subject: |
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| its not that they are too hard... i can make keygens for most of them but... its kina boring. |
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zart
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| Posted: Wed Sep 12, 2007 7:51 am Post subject: |
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| haha01haha01 wrote: | | its not that they are too hard... i can make keygens for most of them but... its kina boring. |
Instead of complaining you could always make some. Or crack the ones what havn't been.
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haha01haha01
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| Posted: Wed Sep 12, 2007 8:57 am Post subject: |
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| ye ur right... |
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zart
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| Posted: Wed Sep 12, 2007 9:05 am Post subject: |
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besides if you look at the message I posted. This is a tutorial, not a keygen. It'd be kind of pointless to try and keygen this since I've posted the solution with it.
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tj102985
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| Posted: Fri Sep 14, 2007 1:33 pm Post subject: |
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ok so lets say i wana make a keygen for photoshop i can read this and learn how to make one?
does it say what tools are needed to do so?
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zart
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| Posted: Fri Sep 14, 2007 1:59 pm Post subject: |
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| tj102985 wrote: | ok so lets say i wana make a keygen for photoshop i can read this and learn how to make one?
does it say what tools are needed to do so? |
You should learn how to 1, program first, 2, basic cracking then you could start trying to analyze photoshop.
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oib111
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| Posted: Fri Sep 14, 2007 7:20 pm Post subject: |
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I never learned how to make my CrackMe's protected so it was always plain text ASCII. I mean using integers was easy. Or just using an variable to hold value. But I never really knew how to make CrackMe like uligors crackme.
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haha01haha01
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| Posted: Sat Sep 15, 2007 4:43 am Post subject: |
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| oib111 wrote: | | I never learned how to make my CrackMe's protected so it was always plain text ASCII. I mean using integers was easy. Or just using an variable to hold value. But I never really knew how to make CrackMe like uligors crackme. |
its simple. use modified ascii values.
for example password is "a" and its ascii value is 97.
now the user entered character "b" wich is ascii 98. u do this:
if userinputascii-10==87 (wich is 97-10)
msgbox (u won)
etc etc etc.....
so now u configured a variable with a wrong ascii value. but the password stay the same because the user input is being somehow "decrypted" with the algo u choosed to encrypt password. |
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