anyone interested in cracking crackme's?

[lepricaun]

ok, heres what you've done:
changed 2 bytes at address 0x00000978 from 8D01 to A103


but again, it won't teach you anything about ASM and cracking

[mark_boyle2002]

How the General AO User Brain Works
"You don't seem to have posted anything of value. I am under this assmuntion as you have a post count of 70 and not a single positive point." - mark_boyle2002

Gotta love it. I spell assumption wrong and it even better suits its purpose.

[SecGod]

I usually don't assign points because I am here to learn more than worry about points and who is more worthy than the next. I base a thread on what it gives and this thread has helped me a lot. So to you mark_boyle 2002, who cares if this thread has a lot of replies without points assigned.

I have learned a lot and to me that means more than these silly points.

[Vorlin]

Man, talk about some angst all up in this house! If someone's learning, no matter how easy it may be on any project they have done, at least give them props for trying. It's easier to break someone else's project and get an answer (in this case) than it is to write code that's secure and solely for the point of "breaking into" and then presenting it to a bunch of unknown people.

I wish I could get the crackits but because I'm at work and geocities is explicitly banned, hehe...I can't ...

[sec_ware]

Once more: Thank you lepricaun!
A tip to 7:
In principle, Nr.7 is "just" somewhat more difficult than
Nr.6, but since the password is somewhat lengthy, one has
to be quite careful while analysing the code in order to
extract the equations to solve for the login/pw.
Double-check each equation you write down. It costs quite
a lot of time to backtrack errors...

As usual in IT, there are several approaches how to crack
the login/pw, eg. change the exe itself, use brute-force
attack, make reasonable guesses (after having parts of the login/pw),
solve non-linear and rather undeterministic equations.
There are also several techniques how to do the reverse
engineering ie. one even can analyse somewhat complicated
arithmetics without knowing any assembler at all (well, just some
basics about the [ebp]).

Since people here seem to be quite interested in participating
in this little game, I guess there might be an interest in a
tutorial about "reverse engineering". I think, using crackit_6
and crackit_7 as examples, I could put together something reasonable.
However, it will be somewhat lengthy, I guess. What do you think?
Would it be spoiling the fun here?

[lepricaun]

Perhaps you then need to post it as hidden sec_ware, this way the people who want to solve it on their own, don't accidentally read your post

but i think it is a good idea...

Vorlin --> i've sent you the crackit's through mail

[sec_ware]

or I post it encrypted and attach an executable that will decrypt it,
however you will need to reverse engineer a login/pw ...

[lepricaun]

hahaha, that would be a nice idea too
i like that, i'll take the challenge !

[lepricaun]

Hi all,

the crackit_8 is finished. this time the challenge is to write a keylogger for the alghorithm used in this program.
mail me the keygen (with source) and tell me how you did this, and i will add your name to the "solved" part of my site

you can get it here.

good luck!

[HTRegz]

Originally posted here by lepricaun
Hi all,

the crackit_8 is finished. this time the challenge is to write a keylogger for the alghorithm used in this program.
mail me the keygen (with source) and tell me how you did this, and i will add your name to the "solved" part of my site

you can get it here.

good luck!

Hey Hey,

Well the first ones were simple.. I may email you if I get bored but sinc eso many have I doubt it...

Anyways I'm playing with 8 right now and I'm kinda curiuos... should it be crashing after I enter a username? or is there something wrong with it?

Peace,
HT