soal

Can you make sense of this file?
Download the file here.

hint

• Multiple decoding is always good.

solve

wget https://artifacts.picoctf.net/c/477/enc_flag
cat enc_flag
# VmpGU1EyRXlUWGxTYmxKVVYwZFNWbGxyV21GV1JteDBUbFpPYWxKdFVsaFpWVlUxWVZaS1ZWWnVh
# RmRXZWtab1dWWmtSMk5yTlZWWApiVVpUVm10d1VWZFdVa2RpYlZaWFZtNVdVZ3BpU0VKeldWUkNk
# MlZXVlhoWGJYQk9VbFJXU0ZkcVRuTldaM0JZVWpGS2VWWkdaSGRXCk1sWnpWV3hhVm1KRk5XOVVW
# VkpEVGxaYVdFMVhSbHBWV0VKVVZGWmFWMDVHV2tkYVNHUlZDazFyY0ZkVWJGWlhZVlpLU0dWRlZs
# aGkKYlRrelZERldUMkpzUWxWTlJYTkxDZz09Cg==

cat enc_flag | tr -d "\n"
VmpGU1EyRXlUWGxTYmxKVVYwZFNWbGxyV21GV1JteDBUbFpPYWxKdFVsaFpWVlUxWVZaS1ZWWnVhRmRXZWtab1dWWmtSMk5yTlZWWApiVVpUVm10d1VWZFdVa2RpYlZaWFZtNVdVZ3BpU0VKeldWUkNkMlZXVlhoWGJYQk9VbFJXU0ZkcVRuTldaM0JZVWpGS2VWWkdaSGRXCk1sWnpWV3hhVm1KRk5XOVVWVkpEVGxaYVdFMVhSbHBWV0VKVVZGWmFWMDVHV2tkYVNHUlZDazFyY0ZkVWJGWlhZVlpLU0dWRlZsaGkKYlRrelZERldUMkpzUWxWTlJYTkxDZz09Cg==

wget https://raw.githubusercontent.com/ariafatah0711/ctf_aria/refs/heads/main/tool/base64
chmod +x base64
# use ./base64 "strings" <count>

/base64 VmpGU1EyRXlUWGxTYmxKVVYwZFNWbGxyV21GV1JteDBUbFpPYWxKdFVsaFpWVlUxWVZaS1ZWWnVhRmRXZWtab1dWWmtSMk5yTlZWWApiVVpUVm10d1VWZFdVa2RpYlZaWFZtNVdVZ3BpU0VKeldWUkNkMlZXVlhoWGJYQk9VbFJXU0ZkcVRuTldaM0JZVWpGS2VWWkdaSGRXCk1sWnpWV3hhVm1KRk5XOVVWVkpEVGxaYVdFMVhSbHBWV0VKVVZGWmFWMDVHV2tkYVNHUlZDazFyY0ZkVWJGWlhZVlpLU0dWRlZsaGkKYlRrelZERldUMkpzUWxWTlJYTkxDZz09Cg==
# picoCTF{base64_n3st3d_dic0d!n8_d0wnl04d3d_de523f49}

# OR spesific the loop
./base64 VmpGU1EyRXlUWGxTYmxKVVYwZFNWbGxyV21GV1JteDBUbFpPYWxKdFVsaFpWVlUxWVZaS1ZWWnVhRmRXZWtab1dWWmtSMk5yTlZWWApiVVpUVm10d1VWZFdVa2RpYlZaWFZtNVdVZ3BpU0VKeldWUkNkMlZXVlhoWGJYQk9VbFJXU0ZkcVRuTldaM0JZVWpGS2VWWkdaSGRXCk1sWnpWV3hhVm1KRk5XOVVWVkpEVGxaYVdFMVhSbHBWV0VKVVZGWmFWMDVHV2tkYVNHUlZDazFyY0ZkVWJGWlhZVlpLU0dWRlZsaGkKYlRrelZERldUMkpzUWxWTlJYTkxDZz09Cg== 6
# picoCTF{base64_n3st3d_dic0d!n8_d0wnl04d3d_de523f49}

flag

picoCTF{base64_n3st3d_dic0d!n8_d0wnl04d3d_de523f49}