Nahamcon 2021

esab64

Its base64 backwards

initial string in file: mxWYntnZiVjMxEjY0kDOhZWZ4cjYxIGZwQmY2ATMxEzNlFjNl13X

The name is backwards so i reversed the string to:

X31lNjFlNzExMTA2YmQwZGIxYjc4ZWZhODk0YjExMjViZntnYWxm

base64 decode to: _}e61e711106bd0db1b78efa894b1125bf{galf

reverse the string once again for flag: flag{fb5211b498afe87b1bd0db601117e16e}_