keii

My CTF Writeups

GitHub Repo Widget

ctfs-write-ups

  • This repo contains my journey on Capture the Flag. All write-up on this repo is created by me or my team when competing in national/international CTF events. Some of the write-up/PoC on this repo is my challenges that i created for CTF events.
  • MyCTFNotes: contains cheat sheets/notes from websites
  • I hope this repo will help you to study about CTF especially in the field of Digital Forensics (which im into it)

about-me

  • Graduated from National Cyber and Crypto Polytechnic, XX Batch Cryptographical Software Engineering field of interest on Cryptography Engineering Major.
  • Currently serving the country at the National Cyber and Crypto Agency.
  • Usually playing with SNI Cybersecurity Team or with my friend itoid as KEITO team
  • Mainly playing on Forensics, so you will find more write-ups on Forensic related topics
  • Also sometimes tryin to solve Rev/Web

write-up-details

EventRankTeamNote
HackTheBox University CTF 2023ParticipantPoltekSSN-
Cyberyolk 2023Only REVIndividual-
FindIT 2024 QualificationRank 14IDKSolved All Forensic
FindIT 2024 FinalRank 8IDKSolved All Forensic
Hacktheon Sejong 2024 QualificationRank 12No_Geming_b0z-
HTB Cyber Apocalypse 2024Top 60SNISolved 9/10 Forensics
Jersey CTF 2024Rank 16SNISolved All Forensic
San Diego CTF 2024Rank 47SNISolved All Forensic
Nullcon HackIM Berlin CTF 20243rd PlaceSNIWeb
Space Heroes CTF 20242nd PlaceSNISolved All Forensic
KMIPN VI Final - 20241st PlaceKEITOSolved All Forensic
Technofair 11 2024 Qualification - Gunadarma UniversityRank 5KEITOSolved All Forensic
Wreck IT 5.0 Junior Qualification - National Cyber and Crypto Polytechnic-Challenge AuthorReverse, Forensic, Web
Wreck IT 5.0 Junior Final - National Cyber and Crypto Polytechnic-Challenge AuthorReverse, Forensic, Web
Cyber Ops Clash 2024 Qualification & Final - Meta4Sec-Challenge AuthorOnly Forensics
Wani CTF 2024 - Wani Hackase, Osaka UniversityRank 15SNISolved All Forensic
COMPFEST 16 Qualification - University of IndonesiaRank 6SNI (FLAKEITO)Solved All Forensic
IT-Del CTF 2024 - Del Institute of Technology-Challenge AuthorAuthor for Rev and Foren
HackToday 2024 Qualification - IPB UniversityRank 9KEITOSolved All Forensic
Gemastik XVII 2024 - QualificationRank 8KEITO-
IFEST 2024 - Padjajaran University3rd PlaceSNI (FLAKEITO)Solved All Forensic
COMPFEST 16 Final - University of Indonesia1st PlaceSNI (FLAKEITO)Solved All Forensic
Cyber Jawara International 20241st PlaceTCP1P x SNI x MAGERSolved All Forensic
Hology 2024 Final - Brawijaya University-UPSOLVESolved All Forensic
SNI CTF 2024 - SNI Cybersecurity Team-Challenge Authorpf-ing (Forensic), my-seniors (OSINT)
Interfest 2024 Quals - Telkom UniversityRank 6SNI (FLAKEITO)-
Interfest 2024 Final - Telkom UniversityRank 5SNI (FLAKEITO)except Pwn
HackTheBox University CTF 2024ParticipantPoltekSSN3/4 Forensic
Backdoor CTF 2024 - InfoSecIITR1st PlaceADA INDONESIA COY3/5 Forensic
Wargames MY 2024Rank 25SNISolved All Forensic
NETCOMP 3.0 Quals - 2025-UPSOLVEX11 Protocol
Cyber Jawara National 2024 - Qualification-SNI (FLAKEITO)Solved All Forensic
Cyber Jawara National 2024 - Final-Challenge AuthorSandboxed Debugging (Forensic)
ARA 6.0 2025 - QualificationRank 6Tempe BacemSolved All Forensic
FindIT 2025 - Qualification-KEITOSolved All Forensic
ITFEST 2025 - Qualification-KEITOSolved All Forensic
COMPFEST 17 Qualification - University of IndonesiaRank 8from gpt import flagSolved All Forensic
Olimpiade Vokasi Indonesia 2025 - Final - Attack Defense2nd PlaceKEITO & Jacob2 Web & 1 NC Chall
INTECHFEST 2025-Challenge Authorshiunji ouka, interesting (Forensic)
GEMASTIK XVIII 2025 - Final - Attack Defense-Challenge Authorcdn, blogpost
National Cyber Week 2025 Qualification - BINUS University-NetizenSolved All Forensic