For this challenge, we are given the following string:V1RJeGMySlhVa1pVYkZaVFltNVNTMXBGYUU5YWF6VkdaVVV4V1UxclduQlVWV2hYVFVabmQxTnRhRlpsYXpRMQ
From previous experience and intuition, this looks like base64. We decode this and get:WTIxc2JXUkZUbFZTYm5SS1pFaE9aazVGZUUxWU1rWnBUVWhXTUZnd1NtaFZlazQ1
This looks like base64 again. We decode this and get:Y21sbWRFTlVSbnRKZEhOZk5FeE1YMkZpTUhWMFgwSmhVek45
This looks like base64 again. We decode this and get: cmlmdENURntJdHNfNExMX2FiMHV0X0JhUzN9
This looks like base64 again. We decode this and get: riftCTF{Its_4LL_ab0ut_BaS3}
Flag: riftCTF{Its_4LL_ab0ut_BaS3}