## AKA The main idea finding the flag is using `base64` command. #### Step-1: When we run `nc chall.csivit.com 30611`, we are pwned into a shell. I tried some basic commands like `ls` to find flag, but it is blocked. #### Step-2: So I tried `base64 flag.txt | base64 -d`, and luckily worked. Voila! We have our flag. #### Step-2: Finally the flag becomes: `csictf{1_4m_cl4rk3_k3nt}`