Tags: reversing 

Rating:

# Idea
The password is the flag we should find. If column A of 'sUpErSeCrEt' sheet is filled with the correct number, K1 becomes true. It's a flag to convert column A into ASCII code.

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# How
We know that K1 comes from calculating J1 and J2. And, a value filled with FALSE is an OR operation, and a value filled with TRUE is an AND operation. Thus, we can infer a boolean value that is not filled.
In conclusion, we can calculate the value of B1-B336 and the flag can be found by cutting the 8digits into ASCII code.

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```
flag{0h_g33z_th4t5_a_l0t_sp3nt_0n_L3Cr0ix}
```
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[Original wirteup](https://github.com/OMEGA-Y/WriteUp/blob/main/reverse-Exhell.md) (https://github.com/OMEGA-Y/WriteUp/blob/main/reverse-Exhell.md)