CTF WriteUp

2025

2025 HackTheon Sejong

HackTheon Sejong International Collegiate Cyber Security Competition Preliminaries

핵테온 세종 국제 대학생 사이버 보안 경진대회 예선

04.26 09:00 - 04.26 18:00 (KST)
Place 43rd
in Team 모구모구 (Beginner A, 4 Teammates)

• Initial Access
  • Forgotten Past
• Resource Development
  • Barcode
  • Bridge
  • I love reversing
• Privilege Escalation
  • Shadow of the System
  • TAR
• Lateral Movement
  • Watch
• Credential Access
  • Cat
• Collection
  • Hidden Message
  • Nothing is essential

DawgCTF 2025

04.19 01:00 - 04.21 01:00 (KST)
Place 190th / 760 teams

• Cryptography
  • The Birds
  • Baby RSA1
  • Baby RSA2
  • Cantor's Pairadox
• Reverse Engineering
  • Suspicous script
  • ShinyClean™ Rust Remover: Budget Edition
• Pwn
  • Interns' Project
• Fwn
  • Keeping on Schedule
  • Just Packets
• Misc
  • Challenge Files?
  • Discord Challenge
  • Don't Forget About the Hints!
  • Don't Touch My Fone
  • Mystery Signal I
  • Spectral Secrets
• OSINT
  • Es ist alless in Butter
  • GEOSINT - chall1 - Easy
  • GEOSINT - chall3 - Easy
  • GEOSINT - chall4- Easy
  • GEOSINT - chall5 - Easy
  • GEOSINT - chall7 - Medium
  • GEOSINT - chall8 - Medium
  • GEOSINT - chall9 - Medium
  • GEOSINT - chall11 - Hard
  • GEOSINT - chall12 - Hard

LA CTF 2025

02.08 13:00 - 02.10 07:00 (KST)
Place 195th / 931 teams

• web
  • chessbased
  • I spy..
  • lucky-flag
  • mavs-fan
• rev
  • javascription
  • nine-solves
  • patricks-paraflag
• pwn
  • 2password
• crypto
  • big e
  • Extremely Convenient Breaker
  • bigram-times
• misc
  • broken ships
  • Danger Searching
  • extended

SSU CTF 2025

01.25 10:00 - 01.25 18:00 (KST)

• misc
  • meme
  • compressor

2024

CYBERGON CTF_2024

11.30 21:00 - 12.02 21:00 (KST)
Place 149th / 336 teams

• osint
  • Favorite Journal
  • The Statue
  • Vacation(1)
• stegano
  • Truesight
• crypto
  • RSA1
  • Chill Bro
• reconnaissance
  • Secure Life

SecurityFACT CTF w. Alkon 2024

11.15 (KST)
Place 6th

• web
  • bypass_filter
• forensic
  • 건덕이는 포렌식고수
  • 못 찾겠지? 못찾겠쥐
• pwn
  • 축제용건국이의 먹거리탈취작전
• crypto
  • 쿠가 가져간 열쇠

Space War Web 2024 May

Place 8th

• web
  • Scroll-Master
  • jelly shop
  • Exec Anything

AmateursCTF 2024

04.05 23:00 - 04.10 12:00 (KST)
Place 189th / 1160 teams
as SecurityFACT Team

• web
  • denied
  • agile-rut
• osint
  • cherry-blossoms

LA CTF 2024

02.17 13:00 - 02.19 07:00 (KST)
Place 339th / 1074 teams

• web
  • terms-and-conditions
  • flaglang
• rev
  • shattered-memories
  • aplet321
• crypto
  • valentiness-day
  • very-hot
  • selamat pagi
• misc
  • infinite loop
  • mixed signals
  • one by one

DiceCTF 2024 Quals

02.03 06:00 - 02.04 06.00 (KST)
Place 390th / 1039teams

• web
  • dicedicegoose