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[crackme]A Crackme with antidebug


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Posted

Please follow and adhere to the topic title format - thank-you!

Posted
Please follow and adhere to the topic title format - thank-you!

ok.thank you

Posted

Most anti-debug tricks use SEH handlers and stuff from other protectors ;) Good stuff, but not hard to skip if you check the stack ;) Anyway, point is.. I found "A Martian!" :D (check up on ECX with hardcoded value). Not gonna say where to look ;)

Posted
Most anti-debug tricks use SEH handlers and stuff from other protectors ;) Good stuff, but not hard to skip if you check the stack ;) Anyway, point is.. I found "A Martian!" :D (check up on ECX with hardcoded value). Not gonna say where to look ;)

GOOD!

some anti is hide in function,so if u know it is a function of anti,just change returnvalue to false,then u will skip it.or u can nop it.

i will post several crackmes that i had post in bbs.pediy.com before.Welcome to test .

Posted (edited)

I didn't NOP or change anything. Let me show you what I mean ;)

tE!Lock

wa3gjp.png

PUSH DWORD PTR FS:[EAX]

MOV DWORD PTR FS:[ESP],EAX

^ Makes the SEH handler in stack, to skip your code I would only need to break on SEH ;) Well, need to also patch those Context copies from ring0 to ring3 :)

VMProtect

hst0rp.png

PUSHFD/POPFD

INT3

Classic :D

Edited by SunBeam
Posted (edited)
I didn't NOP or change anything. Let me show you what I mean ;)

:yes: thanku.

what OS you use?winxp or win2003?

Edited by shellwolf
  • 15 years later...
Sean the hard worker
Posted (edited)

No need to bypass this anti debug in windows 11. It just runs well without any anti anti debug tricks.

Regards.

sean.

Edited by Sean Park - Lovejoy
  • Haha 1
Posted
30 minutes ago, Sean Park - Lovejoy said:

No need to bypass this anti debug in windows 11. It just runs well without any anti anti debug tricks.

Regards.

sean.

bro, this post is 16 years old !!!

  • Like 1
jackyjask
Posted

 

@sean

please test windows 121 as well!  and dont forget to tell the forum about your try!!

 

  • Like 1
CodeExplorer
Posted
1 hour ago, jackyjask said:

windows 121

windows 121 ??? I didn't know such thing exist! Maybe you are ironic.

 

  • Like 1
  • Haha 1
jackyjask
Posted

how many windozes do you know?

  • Like 1
  • Haha 1
MabunbuNgube
Posted
On 4/13/2024 at 9:04 PM, Sean Park - Lovejoy said:

No need to bypass this anti debug in windows 11. It just runs well without any anti anti debug tricks.

Regards.

sean.

jesus christ my man, u got some crazy shovel to dig up this old of a topic

  • Like 1
  • Haha 2

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