zuma555 Posted October 25, 2009 Posted October 25, 2009 Hello everyone, sorry for the loooooooonnngg awayyyyyyyyyyyyyyyyyyyyyyyyy.... but you know university is f*ckd. Here goes another crackme from the heaven to hearth, this is an attempt for you to LEARN SOMETHING, its made for all the ones who are starting with crypto playground, if i wanted it to be hard it would be *HELL HARD*, so don't worry take it easy rules: -no patching -not any other rediculous solution, but an ellite stand-alone keygen+tutorial cryptokg1.zip
Zer0Flag Posted October 25, 2009 Posted October 25, 2009 Hello everyone, sorry for the loooooooonnngg awayyyyyyyyyyyyyyyyyyyyyyyyy.... but you know university is f*ckd. Here goes another crackme from the heaven to hearth, this is an attempt for you to LEARN SOMETHING, its made for all the ones who are starting with crypto playground, if i wanted it to be hard it would be *HELL HARD*, so don't worry take it easy rules: -no patching -not any other rediculous solution, but an ellite stand-alone keygen+tutorial Hey Everytime I want to test a key it fails. Is this a part of the protection or just a coding problem ? Greetz Zer0Flag
zuma555 Posted October 26, 2009 Author Posted October 26, 2009 after a litle analisys you will find that the crash is part of the keygen, you can avoid it ofc. And there is another problem to all: i forgot to clear buffers, so each time you wish to try a new serial please restart the application.
zuma555 Posted October 26, 2009 Author Posted October 26, 2009 (edited) i must be out of my mind.. here goes a fixed... fixed2.rar Edited October 26, 2009 by zuma555
zuma555 Posted October 26, 2009 Author Posted October 26, 2009 Don't forget a valid serial would avoid crash and display a good message !!
zuma555 Posted October 27, 2009 Author Posted October 27, 2009 i may give you a good serial if it helps you, although this is easy guys
s3rh47 Posted October 28, 2009 Posted October 28, 2009 If the serial no tire then there are the errors also here2: mov bl, byte ptr [serial+ecx] cmp bl,2Dh je here inc ecx jnz here2 here: sorry bad english
zuma555 Posted October 28, 2009 Author Posted October 28, 2009 yes, actually if there isn't what it needs ... there will be memory overflow....lol
fenoloji Posted October 28, 2009 Posted October 28, 2009 (edited) serial= xxxxxxx-xxxxxxx -----------algo:K-------algo:L (L x 130h) - (K x AF2h) = 2 x nameAlgo Edited October 28, 2009 by fenoloji
zuma555 Posted October 28, 2009 Author Posted October 28, 2009 yep =) com on guys this is very easy can't anyone solve it.... it was supposed to be easy LOL. Do you think that a valid serial will help you?
fenoloji Posted October 29, 2009 Posted October 29, 2009 (edited) name : eb58 serial: XX-XZ Edited October 29, 2009 by fenoloji
zuma555 Posted October 31, 2009 Author Posted October 31, 2009 fenology that serial won't work, i saw you posted the same serial at crackmes.de I putted a valid serial there instead.Have a nice day
fenoloji Posted October 31, 2009 Posted October 31, 2009 fenology that serial won't work, i saw you posted the same serial at crackmes.de I putted a valid serial there instead. Have a nice day
zuma555 Posted November 1, 2009 Author Posted November 1, 2009 fenology that serial is not working here... your executable file is probably ****ed up... try to re-download the exe.
zuma555 Posted November 1, 2009 Author Posted November 1, 2009 (edited) I saw that in my computer ebx = 0x130 and edx = 0x168... your ascii values are different than mine or your exe file is modified. Edited November 1, 2009 by zuma555
zuma555 Posted November 1, 2009 Author Posted November 1, 2009 (edited) **** i think my crackme has a HUGEEEE bug... when username is getting hashed...0040119A |. 8BD0 MOV EDX,EAX0040119C |. BB 00000000 MOV EBX,0 ;WHAT IS ECX VALUE HERE????004011A1 |> 0283 E8324000 /ADD AL,BYTE PTR DS:[EBX+4032E8]004011A7 |. 03C1 |ADD EAX,ECX ; kernel32.7C80BDF6004011A9 |. 0FAFC2 |IMUL EAX,EDX004011AC |. 03C0 |ADD EAX,EAX004011AE |. 43 |INC EBX004011AF |. 4A |DEC EDX004011B0 |.^ 75 EF \JNZ SHORT cryptokg.004011A1please answer me as fast as you can... Edited November 1, 2009 by zuma555
fenoloji Posted November 1, 2009 Posted November 1, 2009 Where is ecx value? ) invoke lstrlen,offset name after ecx:7C80C710 -----> my computer ecx:xxxxxxxx -----> your computer ? This code is fault.
zuma555 Posted November 1, 2009 Author Posted November 1, 2009 Yep thats the main problem.... here goes a fixed keygen:cryptokg1_fixedecx.rar
fenoloji Posted November 2, 2009 Posted November 2, 2009 Hi Zuma, I keygenned your crackme. My Keygen is not brute. fully algo. Written in Radasm. fenoloji_cryptokg1.rar -----------
zuma555 Posted November 3, 2009 Author Posted November 3, 2009 ok =) upload at crackmes.de with tutorial and source so that we can know better what u'v done.
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