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Wednesday, April 23, 2014
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HellBound Hackers | Challenges | Application Cracking

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Application 2


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Posted on 22-06-05 01:51
Does anyone want to give me any hints towards app2? I have done all the other easy ones, but this one is causing me trouble. I expect I need to attack it in a different way than the others (hex editing is just not working for me), but I don't know what way that is.

If it is a string, then I just cannot recognize it. I even wrote a program to get them out of the exe....did you know that app2.exe contains 1,434 strings* of length at least 5?

*Strings being upper and lower case ascii or numbers, both ascii and psuedo-unicode (every second character being null).

So...any tips?
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RE: Application 2


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Posted on 22-06-05 02:32
did you try using olly its been a while since i did it but i used OllDBG for every one cept 8



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RE: Application 2


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Posted on 22-06-05 08:57
Yep, but it was thousands of lines long, and I don't actually know how to trace using it to figure out what the textbox input is compared against (and I know very little assembly at the moment). I guess I should spend some time and learn it properly.
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RE: Application 2


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Posted on 22-06-05 09:32
you need a flash thingy, thing.... you can find one on this site Wink


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RE: Application 2


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Posted on 22-06-05 09:54
Thanks, that worked wonders. I knew there had to be something else, I just couldn't figure out what. Now I know why I couldn't do it. The string isn't even in the decompile!
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RE: Application 2


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Posted on 22-06-05 18:51
It's in there, you just gotta find it. Look around in all the files. Look at each file carefully.


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RE: Application 2


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Posted on 22-06-05 21:40
Oh I've got it now. I just meant that now I see why I wasn't getting it just using the hex editor.
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RE: Application 2


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Posted on 06-11-05 13:03
can you do this using hex editor instead of olly because ive only rely started using it and still cant udersatnd quite abiit of olly


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RE: app 2


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Posted on 06-11-05 13:14
i did it in notepad, i did the first 4 in notepad :s


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RE: RE: app2


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Posted on 06-11-05 13:42
u are a genius preditor a genius!Grin he he wel i'll get back to work now ...............ehm..........yeah

*silenceShock


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Posted on 06-11-05 17:31
loooooooooooooooooool