CrackMe® Practices for Newbies
PROJECT 5: zipfile.exe

Re: Re: Re: The Ome Bertus thread
Tuesday, 09-Feb-99 18:19:33
    195.102.197.72 writes:

    The CRC number in zipfile.exe is in offset
    00007664 to 00007661 in reverse (4 bytes)

    ie. 33 B8 D0 7A

    that is where the CRC check is however the header is also used in the function with the result.

    ((SizeOfFile+2) XOR _loCRC)

    Included unencrypted with every header therefore you will find a pattern. Unfortunately this does not help much. Only when brute forcing.

    L8R Mushy!

    mushy


Message thread:

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

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