Cheat Engine Forum Index Cheat Engine
The Official Site of Cheat Engine
 
 FAQFAQ   SearchSearch   MemberlistMemberlist   UsergroupsUsergroups   RegisterRegister 
 ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in 


Get the password crap.
Goto page Previous  1, 2
 
Post new topic   Reply to topic    Cheat Engine Forum Index -> General programming -> Crackmes
View previous topic :: View next topic  
Author Message
&Vage
Grandmaster Cheater Supreme
Reputation: 0

Joined: 25 Jul 2008
Posts: 1053

PostPosted: Mon Dec 22, 2008 8:07 pm    Post subject: Reply with quote

armakapo wrote:
how do u "discover" the algorithms with olly? ^^
also, in this crackme, it's supposed to be in the source somehing like this?:
string correctpwd="something";
if (encryptPwd(correctpwd) == inputtedpwd) {
it was good. blah blah blah;
else {
blah blah blah}

my idea is that, is the pwd is encrypted with some algorithm at the function encryptPwd?
if not, which could be the possible method it was encrypted?
i'm yet a nab Razz


There are other ways then comparing them directly...
Back to top
View user's profile Send private message
armakapo
Newbie cheater
Reputation: 0

Joined: 12 Jul 2007
Posts: 19

PostPosted: Mon Dec 22, 2008 11:18 pm    Post subject: Reply with quote

nvm i found some tutorials Razz nobody told me the key.. "noob go learn assemble" xD ill give it another try later
_________________
KONOHA SENPUU!
Back to top
View user's profile Send private message
Zerith
Master Cheater
Reputation: 1

Joined: 07 Oct 2007
Posts: 468

PostPosted: Tue Dec 23, 2008 1:36 am    Post subject: Reply with quote

armakapo wrote:
nvm i found some tutorials Razz nobody told me the key.. "noob go learn assemble" xD ill give it another try later


Try Lena151's tutorials:
http://www.tuts4you.com/download.php?list.17
Back to top
View user's profile Send private message MSN Messenger
DoomsDay
Grandmaster Cheater
Reputation: 0

Joined: 06 Jan 2007
Posts: 768
Location: %HomePath%

PostPosted: Tue Dec 23, 2008 5:33 pm    Post subject: Reply with quote

nog, why doesn't the table point back to 00402000?
Back to top
View user's profile Send private message
nog_lorp
Grandmaster Cheater
Reputation: 0

Joined: 26 Feb 2006
Posts: 743

PostPosted: Wed Dec 24, 2008 1:54 am    Post subject: Reply with quote

Not sure what you mean Doomsday. (if you are talking about a PE structure, its just as MingW made it).
_________________
Mutilated lips give a kiss on the wrist of the worm-like tips of tentacles expanding in my mind
I'm fine accepting only fresh brine you can get another drop of this yeah you wish
Back to top
View user's profile Send private message
DoomsDay
Grandmaster Cheater
Reputation: 0

Joined: 06 Jan 2007
Posts: 768
Location: %HomePath%

PostPosted: Sun Dec 28, 2008 12:33 pm    Post subject: Reply with quote

Ok, here's what I've got:
  • 004013F0 - An array of offsets is being generated (it uses the password as a sorting factor), the offsets point to a pre-defined data block.
  • 004017B7 - If the data pointed by the offsets match to the pre-defined data block - the password is correct.
The preoblem is: I can't seem to find a way to get a match between those (I did extract the functions used to generate the array)...

nog, could you please check that your password works?
Back to top
View user's profile Send private message
SunBeam
I post too much
Reputation: 65

Joined: 25 Feb 2005
Posts: 4021
Location: Romania

PostPosted: Mon Dec 29, 2008 6:47 am    Post subject: Reply with quote

One thing - if this is a VB app (didn't look at it), then the developer used pre-made shit. They always do, then they brag how all-mighty their crackme is Smile
Back to top
View user's profile Send private message
nog_lorp
Grandmaster Cheater
Reputation: 0

Joined: 26 Feb 2006
Posts: 743

PostPosted: Fri Jan 02, 2009 10:45 pm    Post subject: Reply with quote

SunBeam wrote:

Hey jerk, this was written from scratch in C using only basic POSIX functions and not packed. Maybe look at it before you talk crap Sad.

Edit: DoomsDay, my password works. Since you are that far along: the arrays are actually heap structures - http://en.wikipedia.org/wiki/Heap_(data_structure)

_________________
Mutilated lips give a kiss on the wrist of the worm-like tips of tentacles expanding in my mind
I'm fine accepting only fresh brine you can get another drop of this yeah you wish
Back to top
View user's profile Send private message
C.R.E.A.M
Grandmaster Cheater
Reputation: 0

Joined: 26 Mar 2007
Posts: 897

PostPosted: Sat Jan 03, 2009 1:45 am    Post subject: Reply with quote

abaabaaaa
_________________
Ohai!
Back to top
View user's profile Send private message
nog_lorp
Grandmaster Cheater
Reputation: 0

Joined: 26 Feb 2006
Posts: 743

PostPosted: Sat Jan 03, 2009 3:55 am    Post subject: Reply with quote

What? That password is too big... hence the message saying it is too big.
_________________
Mutilated lips give a kiss on the wrist of the worm-like tips of tentacles expanding in my mind
I'm fine accepting only fresh brine you can get another drop of this yeah you wish
Back to top
View user's profile Send private message
sponge
I'm a spammer
Reputation: 1

Joined: 07 Nov 2006
Posts: 6009

PostPosted: Sat Jan 03, 2009 4:31 am    Post subject: Reply with quote

Don't spoil it if you get it. =( I haven't had a chance to look at it since the last time I posted in the thread.

I'll look moar later. Dunna has duh time meng. pz

_________________
Back to top
View user's profile Send private message
Display posts from previous:   
Post new topic   Reply to topic    Cheat Engine Forum Index -> General programming -> Crackmes All times are GMT - 6 Hours
Goto page Previous  1, 2
Page 2 of 2

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You cannot download files in this forum


Powered by phpBB © 2001, 2005 phpBB Group

CE Wiki   IRC (#CEF)   Twitter
Third party websites