Obfuscation - http://challs.dvc.tf:5555/
Solution
Quick look at its source reveals some obfuscated JavaScript. The most interesting part is ‘%64%76%43%54%46%7b%31%74%5f%69%73%5f%6e%30%74%5f%34%5f%73%65%63%72%33%74%5f%34%6e%79%6d%30%72%33%7d’ because it looks like ASCII. Let’s verify it:
>>> "".join([chr(int(b, 16)) for b in "%64%76%43%54%46%7b%31%74%5f%69%73%5f%6e%30%74%5f%34%5f%73%65%63%72%33%74%5f%34%6e%79%6d%30%72%33%7d"[1:].split("%")])
'dvCTF{1t_is_n0t_4_secr3t_4nym0r3}'
>>>Yeah, that’s it!
Flag
dvCTF{1t_is_n0t_4_secr3t_4nym0r3}
Credits
License
CC BY 4.0 WaletSec + everl0stz