Lab 19 - Windows ROP Scenario 2 - Vulnernable App Evaluation Expired

Cyber Security Exploit Development Student
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Hello,

I could not complete lab 19 because whenever I launch the target vulnerable program (DVD X Player 5.5 Professional) after installing it, I’m greeted with this “evaluation expired” dialogue.

Due to this dialogue jumping up every time I try to load a PLF, the DVD player refuses to load any PLF payloads. I couldn’t get control of the EIP at all. I’ve attached a screenshot of it below.

What I’ve tried already but didn’t work:

  1. Uninstall and then install multiple times
  2. Delete all related registry keys
  3. Change system clock to 2014 because a quick research told me this software supposedly has a 14-day free trial

Any help to resolve this would be appreciated. Thank you.

Original post by lilura

Hello!

Seems that DVD X Player it’s not handling very well the 2021. What works for me is the following:

  1. Change the date to something around 2015 (25/01/2015)
  2. Install DVD X Player
  3. Enjoy the 14-day trial version

Thanks

Original reply by Andres

lilura said:
2. Delete all related registry keys

That does the trick:

rmdir "C:\ProgramData\DVD X Studios" /s /q

So

  1. uninstall`
  2. reset date
  3. rmdir "C:\ProgramData\DVD X Studios" /s /q
  4. install again

If tested locally in a VirtualBox

VBoxManage setextradata "my vbox" "VBoxInternal/Devices/VMMDev/0/Config/GetHostTimeDisabled" 0

Original reply by Friedrich