the text is AAAAQwAAAG8AAABuAAAAZwAAAHIAAABhAAAAdAAAAHUAAABsAAAAYQAAAHQAAABpAAAAbwAAAG4AAABz
I have no idea how to decode this
the text is AAAAQwAAAG8AAABuAAAAZwAAAHIAAABhAAAAdAAAAHUAAABsAAAAYQAAAHQAAABpAAAAbwAAAG4AAABz
I have no idea how to decode this
That look like base64. If the strings content [A-Z,a-z,0-9,+,/,=] then you can straight apply the following command:
echo "your strings" | base64 -d
Otherwise visit sites which can do this for you eg: https://www.base64decode.org/
I generally visit two websites to decode/decrypt i.e. https://www.dcode.fr/ and https://gchq.github.io/CyberChef/.
If you decrypt your text then it will be decrypted as
Congratulations
This is similar to the question asked here Decrypt a text I don't know how was encrypted [duplicate]
I will give you a tip on how I decoded this:
Now, go back to the link above and read some of their answers for other suggestions.