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Thread: AsProt crash...

  1. #1

    AsProt crash...

    I tried to unpack many progs that are protected with AsProt 1.3 but they all seem to crash. There is some kind of new protection in this version?
    There is a topic that was created by prejker with the subject another asprotect newbie. In that topic hobgoblin
    says that he managed to get this progy ( Advanced Log Analyzer 1.2) to run. How?

    Ok here's the code from Advanced Log Analyzer 1.2:
    EAX=0051A464 EBX=00000000 ECX=007BFF68 EDX=00000000 ESI=00000087
    EDI=0051A46C EBP=007BFCD4 ESP=007BFCBC EIP=00403A95 o d I s Z a P c
    CS=017F DS=0187 SS=0187 ES=0187 FS=391F GS=0000 FS:00000000=007BFE2C

    00403A7A A1ACF45100 MOV EAX,[0051F4AC]
    00403A7F 85C0 TEST EAX,EAX
    00403A81 744B JZ 00403ACE
    00403A83 8B30 MOV ESI,[EAX]
    00403A85 33DB XOR EBX,EBX
    00403A87 8B7804 MOV EDI,[EAX+04]
    00403A8A 33D2 XOR EDX,EDX
    00403A8C 55 PUSH EBP
    00403A8D 68BA3A4000 PUSH 00403ABA
    00403A92 64FF32 PUSH DWORD PTR FS:[EDX]
    00403A95 648922 MOV FS:[EDX],ESP
    00403A98 3BF3 CMP ESI,EBX
    00403A9A 7E14 JLE 00403AB0
    00403A9C 8B04DF MOV EAX,[EBX*8+EDI]
    00403A9F 43 INC EBX
    00403AA0 891DB0F45100 MOV [0051F4B0],EBX
    00403AA6 85C0 TEST EAX,EAX
    00403AA8 7402 JZ 00403AAC
    00403AAA FFD0 CALL EAX ;when ebx=2, eax=40691C this call crashes the program
    00403AAC 3BF3 CMP ESI,EBX
    00403AAE 7FEC JG 00403A9C ;loop until ebx=esi
    00403AB0 33C0 XOR EAX,EAX

    I've seen the G6 FTP Server tutorial, and i tried to put some ret's in the calls that are crashing but that doesn't work.

    Can anyone please help me?
    Is this related to double dipping in ASProt?
    I promise that I have read the FAQ and tried to use the Search to answer my question.

  2. #2
    oLD SpeKKeLed HeN SpeKKeL's Avatar
    Join Date
    Aug 2001

    check it out

    Did you look to this thread:

    A challenge (or the many faces of ASProtect) !!


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