Harekaze CTF 2018

"Date: 2018-02-10 06:00:00 (UTC) - 2018-02-11 06:00:00 (UTC)"

About Harekaze CTF 2018

Harekaze CTF is a Capture The Flag (CTF) competition organized by Harekaze.

In this competition, we will release challenges related to cybersecurity, such as web security, reverse engineering, cryptography, and digital forensics.

Players can earn points by submitting the flag, which can be found by solving the challenges.




2018-02-10 06:00:00 (UTC) - 2018-02-11 06:00:00 (UTC)


Crypto, Forensic, Network, Pwn, Reversing, Web, and so on


English and Japanese


Contest was already finished. Servers will be stop after a few days that contest ended.



  1. Register one account per team.
    Register one account per member.
    A team leader can make a team in the registration page.
    Other members can join the team by entering the team name and password in the registration page. ()
  2. There are no restrictions on the number of team members.
  3. Individual participation is also welcome.
  4. The flag format is HarekazeCTF{example} unless otherwise stated.
  5. Violation of the rules may result in loss of points or disqualification.
  6. If you have any questions, please feel free to contact us via our chat room.

Prohibited matter

  1. To attack servers other than problem servers.
  2. To attack other teams.
  3. To share flags, solutions or hints with other teams.
  4. To belong to multiple teams at the same time.


Join our Discord server by using the link below! ()




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