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National CTF by HackenProof with the support of DIU

20 November – 1 December
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Become a part of the country's cyber defense

Your contribution to cybersecurity

Sharpen practical skills and strengthen national resilience by solving real-world incident scenarios — web exploits, reversals, OSINT and more.

Why should you join

This event is ideal for students, penetration testers, developers, and security researchers looking to validate vulnerability-hunting skills on realistic tasks and contribute to national cyber defense.

What you'll get

Employer-relevant experience plus measurable recognition - verified CTF certificates and public leaderboard placement, portfolio material and recruitment visibility with security teams and employers. Top performers will receive official acknowledgements signed by GUR leadership.

How to participate

Register
01
Get access
02
Solve tasks
03
Win prizes
04

CTF Difficulty Levels

Level 1Cryptography, OSINT & LogicTest basic skills in analysis, decryption, open-source information gathering and logical thinking.
Task types:
Cryptography• Caesar (shift) — decrypt a message with an unknown shift.• Layered base-encoding — a message encoded...
View full description
Level 2Intermediate — Web PentestingFind and exploit medium-level vulnerabilities in web applications.
Task types:
• Path Traversal — access protected files via directory traversal.• Reflected XSS — inject JS to steal cookies or perform actions as a...
View full description
Level 3Advanced — High-Level Web PentestingMulti-stage exploits, privilege escalation, and lateral movement.
Task types:
• Exploit a known CVE to bypass authentication.• Remote Code Execution (RCE) — run arbitrary commands and get a reverse shell.• Bypass upload/validation checks...
View full description

Prizes & Achievements

Top 3
Winner’s trophy and exclusive prizes:merch boxes, souvenirs, and special distinctions
Top 30
Achievement badge on the HackenProof platformMemorable gifts from the Defence Intelligence of Ukraine and partners
Top 100
National CTF 2025 participation certificatessigned by the Chief of the Defence Intelligence of Ukraine

Leaderboard

RankNameReputationPaid Reports
1
@john_doekyc
John Doe
XXXXXXXX
2
@jane_doe_hackerkyc
Jane Doe hacker
XXXXXXXX
3
@john_doe
John Doe
XXXXXXXX

Time to show your skills in action.
Join the CTF

FAQ

How do I participate in the CTF?

Register on the platform, verify your account, get access, and join on the CTF start day.

Where can I get support or ask questions?

All technical and organizational questions can be asked in our Discord — join the Discord.

Can I participate individually or only as a team?

You can join either solo or as part of a team. The choice is yours.

What will participants and winners receive?

Participants will receive certificates; top teams will earn prizes and special recognitions.

Can I participate from abroad?

Yes. The CTF is open to everyone regardless of location.

Which challenge tracks are included in the CTF?

Web, OSINT, cryptography, forensics, reverse engineering, and other classic CTF tracks.

Where will results be published?

Final results and the leaderboard will be available both on the HackenProof website and on the CTF platform.

Can I participate anonymously?

Yes. You may choose a nickname and remain fully anonymous.

What is prohibited for participants?

Any activity outside the designated challenge environments is forbidden. Attacks outside the CTF platform, DDoS, and sharing solution details outside permitted channels are strictly prohibited.