citylights's citylights crackme #1
| Download crackme.zip, 270 kb (password: crackmes.de) Browse contents of crackme.zip Crackme #1 by citylights
Difficulty: 2 - Needs a little brain (or luck) | RatingWaiting for at least 3 votes View profile of citylights » |
Solutions
Solution by rmolina, published 03. sep, 2013; download (5 kb), password: crackmes.de or browse.
rmolina has not rated this crackme yet.
Discussion and comments
| Artfulwave 28. Aug 2013 | The .exe is calling a function which called _calc on CrackThisApp.dll this function takes 9 arguments (FirstBoxValue,SecondsBoxValue, etc) after some calculations it calls another function within the same DLL it takes 9 arguments then it compares 2 values it jumps if conditions met else it a function which takes 9 arguments ( the function which has just been called and and compare again jump if conditions met otherwise call the function again.. Personally i prefer doing the same as you done GetProcAddress(hCrackApp, "_calc"); and then call that function.That`s not allowed right ? |
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| citylights Author 31. Aug 2013 | if my understanding of your words is correct, it will fail the calculation process. But I don't really care if you try. |
| rmolina 01. Sep 2013 | Are we expected to use bruteforce on it? I believe I understand the validation, and I wrote a simple keygen which generates a restricted subset of solutions. For all those generated solutions I got a "Congratulations! The answer is %s", but the last part is just garbage, not a readable string. |
| rmolina 01. Sep 2013 | I asked before about bruteforce because I thought that you were expecting just one valid solution which might be used in order to decrypt some message. It seems like you just wanted to print the solution in the missing part of the string, so I am confused. I will send you a PM with some of my generated solutions in order to check if they are valid. Thanks. |
| citylights Author 01. Sep 2013 | sorry, it seems that I left out some stuff in the validation process, the acceptable solution will display an english word. And I will also take bruteforcing solutions as acceptable as long as you can find the correct combination among them. |
| rmolina 01. Sep 2013 | Then, it would probably be better to update the file. |
| rmolina 01. Sep 2013 | It took less than a second to bruteforce it :) "Congratulations! The answer is: Disbelief" |
| rmolina 02. Sep 2013 | Well, it was not complete bruteforcing... |
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