CrackMe® Practices for Newbies
PROJECT 5: zipfile.exe

The Ome Bertus thread
Tuesday, 09-Feb-99 15:38:20
    194.178.253.221 writes:

    Yooohhh,

    first of all, sorry for my bad english.

    I'm going to try the following approach, i have ziped a file containing 50 times an "A".
    The first time with a password, the second time without a password.

    The first 38 bytes of both files are the same. Then there is a
    difference. In the password file there are 18 bytes and in the
    no-password file there are 6 bytes. The next part of both files
    is the same. The only difference is the sixth byte before the end of
    both files. Probably this is a crc or something like that.

    So, it seems to me that the password is stored in the 18 bytes mentioned
    above. The thing to do is, find out how the password is crypted and stored. If you manage to do that it may be possible to reverse it.

    Chow,

    Ome Bertus

    Ome Bertus


Message thread:

The Ome Bertus thread (Ome Bertus) (09-Feb-99 15:38:20)

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