vimv VS CyberChef

https://github.com/ivanmaeder/vimv

100%. I use this every day, esp. when editing my music library.

I have written a python script for bunch renaming files using vim from the terminal. It is inspired from a script with the same name https://github.com/ivanmaeder/vimv. But, I have rewritten it from scratch so that it can handle swapping multiple filenames and show error or prompt before removing files. So, swapping multiple lines shouldn't remove files (at least without confirming from user) and should work as intended. At least, that was the aim, which I hope was successful.

Then we take the encrypted text and use CyberChef to decrypt it.

Let's go to CyberChef and insert our pieces of evidence.

A parameter was changed from '2AMBCgIQBg' to 'CgIIAdgDAQ%3D%3D' which is just the correct base64 encoding they should have been using the entire time.

I don't think this was a hostile action by Google, I think someone just added better input validation for security reasons and it accidently broke the bad requests they were sending.

https://gchq.github.io/CyberChef/#recipe=URL_Decode()From_Ba...

❗This is indeed the flag, but the text is encrypted with Base64. Usually, the presence of padding character "=" indicates that's Base64 type of encoding (but that's only one of the hints). To decrypt it, we can use CyberChef. Copy-paste the text and we either:

It uses a combination of magic bytes (like the `file` command), entropy analysis and character frequency detection to determine whether an output is likely to be of interest to the user.

The file type mechanism is written here[0]. There's a list of all signatures we detect here[1].

[0] https://github.com/gchq/CyberChef/blob/master/src/core/lib/F...

I think this can be deciphered using CyberChef...