1. A challenge opens everyday. (Dec. 1 - Dec. 25)
  2. Don't share your solution and flag in CTF holding. No cheating.
  3. Don't attack not specified services/ports.
  4. Don't brute force the server/challenges.
  5. Don't scan this server. This server is sharing other services.

adctf2014 is long running CTF (Dec. 1 00:00:00+0900 - Dec. 25 23:59:59+0900). Unfortunately, we can't support you full-time. If you have a question, we wouldn't answer immediately.


  • Flag format (mostly): ADCTF_[0-9A-Za-z_]+
  • If we are too busy and couldn't prepare a challenge, maybe that day is missing challege.
  • Some hints will publish by @akiym. Check #adctf2014.
  • No bonus points.


no prize, have a fun :)


If you have a question, please let me know:

Organized by team dodododo in Japan.