11-20.7z -

: If you see a string ending in = , it's likely Base64.

The flag usually follows a specific format, such as CTF... or flag... . : CTFn3st3d_z1ps_4r3_fun_12345 11-20.7z

: Check the archive's "Comment" section; flags are often hidden there to reward those who don't just "Extract All". Step 5: Final Flag Submission : If you see a string ending in = , it's likely Base64