Jump to content
virusz

Crackme v7

Recommended Posts

Posted

AlucardHao poti te rog sa ne explici pas cu pas cum ai procedat cu OllyDbg ???

P.S.-Am avut un fisier .ini care copiat in OllyDbb schimba putin interfata lui cand selectai un rand aparea linie rosie de exemplu pana la o alta instructiune un fel de paranteza

Posted

1) intru in ollydbg

2) deschid crackme7.exe

3) dak apare o fereastra in care zice ca programul are o secv mai lunga sau encryptata.. si da 2 opt aleg ok..

4)ma te duci si selectezi ultimul JMP din program si dai enter

5) te dci si pui un breakpoint pe prima linie nou aparuta.. 0401000

6)rulezi programul soi incepi sa te uiti in jos pana ce gasesti primul set de text ascii:"okay -crackme7" si dak ne uitam mai sus observam ca adresa 047e91d are un jnz

--------------------------------------------------------------

JNZ | addr9 | Jump if not zero |

Words: | 2 | Cycles: 2 or 3 (jump) | Affects: none

----------------------------------------------------------------

Operation:If Z is 0, a jump to addr9 is executed.

------------------------------------

Coding |BTFSS | 3,2

|GOTO | addr9

--------------------------------------------------------

JZ | addr9 | Jump if zero |

Words: | 2 | Cycles: 2 or 3 (jump) | Affects: none

---------------------------------------------------------------

Operation: If Z is 1, a jump to addr9 is executed.

---------------------------------------------------------------

Coding: BTFSC 3,2

GOTO addr 9

asadar il dam dublu clic pe el si punem JZ avand grija ca fil nops sa fie selectat dupa care dam assemble..

si acum orice as pune la serial il va lua in considerare...

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.



×
×
  • Create New...