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[EN] RevC 1

tags:Writeup Reverse English

FlyDragon

Step.1

Using Ghidra to check main() function

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This program compare the password and the password is I_LOVE_DONUTS

Step.2

Enter the password.

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LoTuX CTF
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[CH] Cookie Stealer

[name=FlyDragon]

May 28, 2025
[EN] Cookie Stealer

[name=FlyDragon]

May 28, 2025
LoTuX CTF 投稿說明

在 LoTuX 平台上取得 2000 分以上

Apr 4, 2025
[EN] Rev C 2

[name=FlyDragon] Step.1 By observing output.txt and executing the code, it can be inferred that the program flag.exe will output the flag after shuffling it. Step.2 By examining main() using Ghidra, it can be discovered that this program reads in the contents of flag.txt and outputs them after performing specific swaps in a particular order. order = [5, 13, 0, 12, 1, 16, 3, 2, 8, 7, 15, 4, 6, 17, 11, 10, 9]

Nov 1, 2023
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