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Reak
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Joined: 15 May 2007
Posts: 3496
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 Posted: Thu Feb 07, 2008 10:40 am Post subject: Crackmeh |
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Exercise 1: Post a cracked version
Exercise 2: Post the pass 
download:
Rapidshare
Mediafire
Edit: Kasper don't post yours, I gave it to you earlier. Just stay out of here please. |
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S3NSA
:3
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Location: England.
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Xanatos
I post too much
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| Posted: Thu Feb 07, 2008 11:40 am Post subject: |
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| S3NSA wrote: | Bit different to the "yea you're right!" but oh wells, Im having fun
really should finish Leena's tuts one day lol
 |
That's Lena, not Leena. One's a pro, one's a newfag D:
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S3NSA
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Reak
I post too much
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| Posted: Thu Feb 07, 2008 12:07 pm Post subject: |
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| lul wuts the pass. |
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atom0s
Moderator
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Location: 127.0.0.1
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| Posted: Thu Feb 07, 2008 1:45 pm Post subject: |
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Password: laloli
Check code:
| Code: | 0045393F |. 837D FC 00 CMP DWORD PTR SS:[EBP-4],0
00453943 |. 75 0A JNZ SHORT Crackmeh.0045394F
00453945 |. E8 86FFFFFF CALL Crackmeh.004538D0
0045394A |. E9 BC000000 JMP Crackmeh.00453A0B
0045394F |> 8D55 F8 LEA EDX,DWORD PTR SS:[EBP-8]
00453952 |. 8B83 FC020000 MOV EAX,DWORD PTR DS:[EBX+2FC]
00453958 |. E8 EFF0FDFF CALL Crackmeh.00432A4C
0045395D |. 8B45 F8 MOV EAX,DWORD PTR SS:[EBP-8]
00453960 |. 8038 6C CMP BYTE PTR DS:[EAX],6C
00453963 |. 0F85 9D000000 JNZ Crackmeh.00453A06
00453969 |. 8D55 F4 LEA EDX,DWORD PTR SS:[EBP-C]
0045396C |. 8B83 FC020000 MOV EAX,DWORD PTR DS:[EBX+2FC]
00453972 |. E8 D5F0FDFF CALL Crackmeh.00432A4C
00453977 |. 8B45 F4 MOV EAX,DWORD PTR SS:[EBP-C]
0045397A |. 8078 01 61 CMP BYTE PTR DS:[EAX+1],61
0045397E |. 75 7F JNZ SHORT Crackmeh.004539FF
00453980 |. 8D55 F0 LEA EDX,DWORD PTR SS:[EBP-10]
00453983 |. 8B83 FC020000 MOV EAX,DWORD PTR DS:[EBX+2FC]
00453989 |. E8 BEF0FDFF CALL Crackmeh.00432A4C
0045398E |. 8B45 F0 MOV EAX,DWORD PTR SS:[EBP-10]
00453991 |. 8078 02 6C CMP BYTE PTR DS:[EAX+2],6C
00453995 |. 75 61 JNZ SHORT Crackmeh.004539F8
00453997 |. 8D55 EC LEA EDX,DWORD PTR SS:[EBP-14]
0045399A |. 8B83 FC020000 MOV EAX,DWORD PTR DS:[EBX+2FC]
004539A0 |. E8 A7F0FDFF CALL Crackmeh.00432A4C
004539A5 |. 8B45 EC MOV EAX,DWORD PTR SS:[EBP-14]
004539A8 |. 8078 03 6F CMP BYTE PTR DS:[EAX+3],6F
004539AC |. 75 43 JNZ SHORT Crackmeh.004539F1
004539AE |. 8D55 E8 LEA EDX,DWORD PTR SS:[EBP-18]
004539B1 |. 8B83 FC020000 MOV EAX,DWORD PTR DS:[EBX+2FC]
004539B7 |. E8 90F0FDFF CALL Crackmeh.00432A4C
004539BC |. 8B45 E8 MOV EAX,DWORD PTR SS:[EBP-18]
004539BF |. 8078 04 6C CMP BYTE PTR DS:[EAX+4],6C
004539C3 |. 75 25 JNZ SHORT Crackmeh.004539EA
004539C5 |. 8D55 E4 LEA EDX,DWORD PTR SS:[EBP-1C]
004539C8 |. 8B83 FC020000 MOV EAX,DWORD PTR DS:[EBX+2FC]
004539CE |. E8 79F0FDFF CALL Crackmeh.00432A4C
004539D3 |. 8B45 E4 MOV EAX,DWORD PTR SS:[EBP-1C]
004539D6 |. 8078 05 69 CMP BYTE PTR DS:[EAX+5],69
004539DA |. 75 07 JNZ SHORT Crackmeh.004539E3 |
Just walks the string inputted and compares each letter to a statically coded one.
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Reak
I post too much
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Joined: 15 May 2007
Posts: 3496
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| Posted: Thu Feb 07, 2008 3:10 pm Post subject: |
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yea true, hehe nice 
| Code: | procedure Fail();
begin
ShowMessage('Fail');
end;
procedure Correct();
begin
ShowMessage('Yea you´re right!');
end;
procedure TForm1.Button1Click(Sender: TObject);
begin
if Edit1.Text = '' then
begin
Fail;
Exit;
end;
if Edit1.Text[1] = 'l' then
if Edit1.Text[2] = 'a' then
if Edit1.Text[3] = 'l' then
if Edit1.Text[4] = 'o' then
if Edit1.Text[5] = 'l' then
if Edit1.Text[6] = 'i' then
Correct
else Fail
else Fail
else Fail
else Fail
else Fail
else Fail
end; |
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DeletedUser14087
I post too much
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Joined: 21 Jun 2006
Posts: 3069
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| Posted: Fri Feb 08, 2008 4:41 am Post subject: |
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as i said to you on msn:
| DeletedUser14087 wrote: | | hmm... i see you used alot of the "if" statements, alot of cmp function |
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Reak
I post too much
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Joined: 15 May 2007
Posts: 3496
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| Posted: Fri Feb 08, 2008 6:48 am Post subject: |
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Yepp.
But since I'm a asm-noob this code how it compares every char with another .. .. This was very interesting for me.  |
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DeletedUser14087
I post too much
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Joined: 21 Jun 2006
Posts: 3069
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| Posted: Fri Feb 08, 2008 9:38 am Post subject: |
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| rEakW0n wrote: | Yepp.
But since I'm a asm-noob this code how it compares every char with another .. .. This was very interesting for me. |
this crackme is tricky, for me i'd say medium level. |
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