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My crackme [FIRST EVER!!]

 
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Overload
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Joined: 08 Feb 2008
Posts: 293

PostPosted: Sun Apr 13, 2008 8:23 pm    Post subject: My crackme [FIRST EVER!!] Reply with quote

Its my very first crackme, and my very first time coding in C. So don't flame Laughing
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Quote:
Rhys says:
you can be my maid
Rhys says:
ill buy you a french maid outfit
Tyler says:
Sounds good
Rhys says:
ill hold you to that
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oib111
I post too much
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Joined: 02 Apr 2007
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PostPosted: Sun Apr 13, 2008 9:05 pm    Post subject: Reply with quote

rofl. It doesn't even open. Did you even test this? Go back and fix it, then repost.
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cigs dont make people high, which weed does, which causes them to do bad stuff. like killing
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lurc
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Joined: 13 Nov 2006
Posts: 1900

PostPosted: Sun Apr 13, 2008 9:09 pm    Post subject: Reply with quote

Opens fine for me.

Password: 12345678987654321

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Overload
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Joined: 08 Feb 2008
Posts: 293

PostPosted: Sun Apr 13, 2008 9:31 pm    Post subject: Reply with quote

lurc wrote:
Opens fine for me.

Password: 12345678987654321


lawlz, j00 win. I didn't even bother trying to crack it. And its my first. So now, i'll try to make it a little harder...

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Quote:
Rhys says:
you can be my maid
Rhys says:
ill buy you a french maid outfit
Tyler says:
Sounds good
Rhys says:
ill hold you to that
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Labyrnth
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Joined: 28 Nov 2006
Posts: 6285

PostPosted: Mon Apr 14, 2008 11:05 am    Post subject: Reply with quote

Hex Editor:


Password Start Address:


JooWin msg:



In Olly: Break


Registers:


Dump:


And the outer and inner loop that checks the serial:
Code:

1026F7D0 >/$  8B5424 04     MOV EDX,DWORD PTR SS:[ESP+4]
1026F7D4  |.  8B4C24 08     MOV ECX,DWORD PTR SS:[ESP+8]
1026F7D8  |.  F7C2 03000000 TEST EDX,3
1026F7DE  |.  75 3C         JNZ SHORT MSVCR90D.1026F81C
1026F7E0  |>  8B02          /MOV EAX,DWORD PTR DS:[EDX]
1026F7E2  |.  3A01          |CMP AL,BYTE PTR DS:[ECX]
1026F7E4  |.  75 2E         |JNZ SHORT MSVCR90D.1026F814
1026F7E6  |.  0AC0          |OR AL,AL
1026F7E8  |.  74 26         |JE SHORT MSVCR90D.1026F810
1026F7EA  |.  3A61 01       |CMP AH,BYTE PTR DS:[ECX+1]
1026F7ED  |.  75 25         |JNZ SHORT MSVCR90D.1026F814
1026F7EF  |.  0AE4          |OR AH,AH
1026F7F1  |.  74 1D         |JE SHORT MSVCR90D.1026F810
1026F7F3  |.  C1E8 10       |SHR EAX,10
1026F7F6  |.  3A41 02       |CMP AL,BYTE PTR DS:[ECX+2]
1026F7F9  |.  75 19         |JNZ SHORT MSVCR90D.1026F814
1026F7FB  |.  0AC0          |OR AL,AL
1026F7FD  |.  74 11         |JE SHORT MSVCR90D.1026F810
1026F7FF  |.  3A61 03       |CMP AH,BYTE PTR DS:[ECX+3]
1026F802  |.  75 10         |JNZ SHORT MSVCR90D.1026F814
1026F804  |.  83C1 04       |ADD ECX,4
1026F807  |.  83C2 04       |ADD EDX,4
1026F80A  |.  0AE4          |OR AH,AH
1026F80C  |.^ 75 D2         \JNZ SHORT MSVCR90D.1026F7E0
1026F80E  |.  8BFF          MOV EDI,EDI
1026F810  |>  33C0          XOR EAX,EAX
1026F812  |.  C3            RET
1026F813  |   90            NOP
1026F814  |>  1BC0          SBB EAX,EAX
1026F816  |.  D1E0          SHL EAX,1
1026F818  |.  83C0 01       ADD EAX,1
1026F81B  |.  C3            RET
1026F81C  |>  F7C2 01000000 TEST EDX,1
1026F822  |.  74 18         JE SHORT MSVCR90D.1026F83C
1026F824  |.  8A02          MOV AL,BYTE PTR DS:[EDX]
1026F826  |.  83C2 01       ADD EDX,1
1026F829  |.  3A01          CMP AL,BYTE PTR DS:[ECX]
1026F82B  |.^ 75 E7         JNZ SHORT MSVCR90D.1026F814
1026F82D  |.  83C1 01       ADD ECX,1
1026F830  |.  0AC0          OR AL,AL
1026F832  |.^ 74 DC         JE SHORT MSVCR90D.1026F810
1026F834  |.  F7C2 02000000 TEST EDX,2
1026F83A  |.^ 74 A4         JE SHORT MSVCR90D.1026F7E0
1026F83C  |>  66:8B02       MOV AX,WORD PTR DS:[EDX]
1026F83F  |.  83C2 02       ADD EDX,2
1026F842  |.  3A01          CMP AL,BYTE PTR DS:[ECX]
1026F844  |.^ 75 CE         JNZ SHORT MSVCR90D.1026F814
1026F846  |.  0AC0          OR AL,AL
1026F848  |.^ 74 C6         JE SHORT MSVCR90D.1026F810
1026F84A  |.  3A61 01       CMP AH,BYTE PTR DS:[ECX+1]
1026F84D  |.^ 75 C5         JNZ SHORT MSVCR90D.1026F814
1026F84F  |.  0AE4          OR AH,AH
1026F851  |.^ 74 BD         JE SHORT MSVCR90D.1026F810
1026F853  |.  83C1 02       ADD ECX,2
1026F856  \.^ EB 88         JMP SHORT MSVCR90D.1026F7E0


This one was nice and easy but very fun too work with.

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Overload
Master Cheater
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Joined: 08 Feb 2008
Posts: 293

PostPosted: Mon Apr 14, 2008 6:37 pm    Post subject: Reply with quote

Labyrnth wrote:


This one was nice and easy but very fun too work with.


well the next one i have in store, should be a little more fun to work with. I don't really know if it will be harder, but i know it will be more fun =)

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Quote:
Rhys says:
you can be my maid
Rhys says:
ill buy you a french maid outfit
Tyler says:
Sounds good
Rhys says:
ill hold you to that


Last edited by Overload on Mon Apr 14, 2008 7:20 pm; edited 1 time in total
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Labyrnth
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Joined: 28 Nov 2006
Posts: 6285

PostPosted: Mon Apr 14, 2008 6:51 pm    Post subject: Reply with quote

Hey mate remove the quote from your post.
You really didnt need to quote that big as post lol.

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Overload
Master Cheater
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Joined: 08 Feb 2008
Posts: 293

PostPosted: Mon Apr 14, 2008 7:20 pm    Post subject: Reply with quote

Labyrnth wrote:
Hey mate remove the quote from your post.
You really didnt need to quote that big as post lol.


sorry about that Embarassed

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Blog

Quote:
Rhys says:
you can be my maid
Rhys says:
ill buy you a french maid outfit
Tyler says:
Sounds good
Rhys says:
ill hold you to that
Back to top
View user's profile Send private message MSN Messenger
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