YaCTF 2022
Yet Another CTF is a computer security competition organized by Yandex and run by SPbCTF crew.
What is CTF
CTFs are competitive hacking events: like ACM ICPC, but in computer security. Participants get a number of tasks or challenges about cryptography, binary reverse engineering, web vulnerabilities, network security, digital forensics, etc — all the topics that computer security engineers work with.
Each challenge has a goal, e.g. to find a vulnerability and extract the administrator's password from the website database. Upon solving the challenge, the player gets a flag — some secret string like yactf{fl4g_ex4mpl3}. Participant submits it in exchange for points. The competitor with the most points wins. To be successful in a CTF, you basically need to know computer systems well and deeply.
More info about CTFs on CTFtime website.
When
Sat, February 12th, 2022 10:00 UTC — Sun, February 13th, 2021 10:00 UTC (24 hours)
Format
Yet Another CTF is an individual competition open to stand alone participants.
YaCTF will be a Jeopardy-style competition. Competitors will receive a set of challenges from various areas of practical security, ranging from basic to interesting.
Dynamic scoring will be used: the more competitors solve a challenge, the less it will cost in the end.
If there are several competitors who gain the same number of points, the winner is the one who solved his last challenge earlier.
Prizes
• 1st place — 150 000 RUB
• 2nd place — 100 000 RUB
• 3rd place — 50 000 RUB
In addition to 3 main prizes there will be the following extra awards:
• 4th to 10th places: Yandex.Cloud coupon for 10 000 RUB
• 11th to 20th places: Yandex.Market coupon for 5 000 RUB
• 21st to 30th places: Yandex.Market coupon for 3 000 RUB
• 31st to 40th places: Yandex.Plus one year subscription
Current or former Yandex employees are not eligible for prizes.
Competition rules
Don't Ruin the Fun for Players
CTFs allow using any means or tools to solve challenges and outperform other competitors.

At the same time, some actions might ruin the fun for other players. For example:
• Don't delete flags or break services. While organizers try to maintain challenge resilience, mistakes will be made. Instead of abusing them, report them to the orgas for kudos.
• Don't share flags or ask for flags. It's a competition, do your personal best.
Don't Ruin the Fun for Organizers
For example:
• Don't generate excessive load. Brute Forcing or DirBusting will not be necessary, let's keep it down.
• Don't troll, spam, flood in the chats.
• Don't register multiple accounts.
Organizers will guard the fun by punishing the fun-ruiners.
Do Your Best and Have Fun
Good luck!
Contacts
For any questions, please contact us in Telegram chat @yactf
Detailed Terms and Conditions: individual_terms.pdf
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