Magnet Virtual Summit CTF Ciphers

[lucid_living]

I’ve already gotten the answer, all my ciphers are complete.

For the cow one (number 6) look at the exe file with Ghidra or other reverse engineering software.

[Dr.Mac237]

@lucid_living

Use Ghidra, add the exe, analyze the exe, then open the exe with CodeBrowser.

In Ghidra, filter for “png” in the PE resources menu, there’s some png files, the smaller one (1.892 kb) has a PDF417 barcode. Scan the barcode and you’ll get a 60 character password.

Enter the password (moo.exe “×××60×××”), then that password reveals the flag URL.

Thank you!

[lucid_living]

No problem, good luck tomorrow!

[lucid_living]

Run the python script below in the same folder as the “challenge3.vhdx” image.

cipher3.py (707 Bytes)