[CrackMe] CrackMe Simulator 2018

assembly
challenge
c++
linux
reverseengineering

#1

This is a PoC-style test run for an application that I am currently developing as a personal project. Should anything weird happen, please report it to me and I’ll try to fix it. This is just a simple crackme so it shouldn’t be too hard once you start to figure out what’s happening… maybe…? :thinking:

Difficulty

Author Assigned Level: ¯\_(ツ)_/¯

Community Assigned Level:

  • Newbie
  • Wannabe
  • Hacker
  • Wizard
  • Guru

0 voters


Objective

  • Find the correct key.

Rules of Engagement

  • You may not modify the binary.

Binary

To retrieve the binary, use the following command with the base64 text below:

cat text | base64 -d | gunzip >binary

H4sICLXC/1oAA3ZtAO08DXhTVZbvJa9taEMSIAJCGYPWkQ7YaaGDRNBpaZNSKBD6B45gDG1Kg6Wp
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u5vguwpKgcdb6eJdTIa72lnlc21wO6srfREKdFdUOPH2QR3v5MlLyUSZ0+XzuTZSHeo1NOna4KmA
C6JwbX09k1Hh3YC3ML75OGMcYoxj3EX/DoL6URdSLEtS+NTfK7BEj42Cp0fx4d4cIW0UPty3nIOY
RD71dwmQLyGKD+F2xUbkw/mDkKOh84llIr9XYGciv1OA8w2hIeqde7UfGNay0i7OC4RFUe1qFLgT
4IrCh/MJAf97nKi0o6pez+Bbm1QG5ydCU1w/cH7WK3wLGTqfEXoVvklRfJsUW7EdzDcIN4ziv8Yo
vqFkCrvYCJ9J4X0gim+nnkL0u/k6BcQoPvxNDfK7GtfF6sPPI1F8mAcRzFH6VPueYCJxJc2k8AU3
ku9foviif+cinu+XUXzvZlHQ6UbyvRTFd9xKoXoUfa8BGBjlN0CW0d/xMMXxIeB/84wKH+b3ytsj
OqL5PmAisUF+7+P2yG99qHxobotin5rv634IYzKKvlNRfAzmvRy6BsX3Y0jRi3x64NPnRM7L0Xxf
KPoyFRr5bozii173on7KgckCvitxfPj5b9/f7LuQRQAA

Good luck!


[CrackMe] CrackMe Simulator 2018 MK II
( X2tf) #2

The textbox insert newlines automattically on my mashine so some user has to use

base64 -id
for it to work


#3

Was fun! :smiley:

The flag is VM{M4TR1X}


#4

Finally managed to finish it too :smiley:

$ ./crackme VM{M4TR1X}
Congratulations! You did it!