CrackMe® Practices for Newbies
Project 9: CrackMe 2 by Cronos

Re: Re: Re: My access code
Wednesday, 07-Apr-99 04:43:48

    Hie Andy,

    After some thinking I desided that the best way to attach the username access code copination was to use the same value as many times as possible and I foun that by using 29H I get little higher than magic nuber 5868H by the fiffth character. Thus I used 29H three times 10h one time and 0 for the last time. If you look at the pairs AF, ns, and di in the username access code you will find the difference is 29hwhile the difference between y an I is only 10h the - in both username and access code gives a 0, any other character could have been used insted. To select the appropriate chracters to use realistic names, I genarated a table for all the printable charates by multiplying each character by 2bH in the same manner the program encodes the username and access code after they are entered. Once you know what the program is doing as you do the rest is just work. I wrote more programs to help me crack this one more than I did for any other crackme. It was cleverly done an unlike any other program I worked on.

    Best regards,

    Joseph

    Joseph


Message thread:

Andy's Thread (Andy) (29-Mar-99 07:03:39)

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