I am currently a undergraduate student at Korea University. My thesis studies are focused on Keras with a vision to use ML, neural-network with deep learning, to provide security in both system and web. If you want to request penetration test for your website, contact me.
Hello, I'm SeungHyun Kim.
Also known as sqrtrev
Experience
CVE-2021-27550
- with Dohyun-Lee from Merona Hunters
Founded Merona-Hunters
- with SeungJun Kim, MinKi Jang, DoHyun Lee
- Since 2021 ~
Founded Team Super Guesser
- 2020 ~
QuasarZone Bug hunting
- Got SQL Injection Vulnereability
ASIS CTF 2020
- make a challenge: Admin Panel (32 solves)
- make a challenge: Old School (16 solves)
- make a challenge: PyCrypto (14 Solves)
Team WreckTheLine
- 2020 ~
CVE-2020-23325
- zero-day vulnerability on Wordpress Plugin
Korea University
- Undergraduate Researcher
IJCTF 2020 (total 903 teams)
- make a challenge: Broken_chrome (33 solves)
- make a challenge: nod_nod (9 solves)
- make a challenge: built_in_http (2 solves)
Project VoS: Twitch Voting Bot
- Security and Backend develop. (PHP/Python)
Seil High School
- Website SQL Injection and XSS bug hunt
Team HackCat
- 2015 ~
Stack
Securinets CTF Quals 2021
- Won 1st place as Super Guesser
LINE CTF 2021
- Won 3rd place as rbtree fan club
UTCTF 2021
- Won 3rd place as Super Guesser
zer0pts CTF 2021
- Won 1st place as Super Guesser
darkCON CTF 2021
- Won 2nd place as WreckTheLine
Real World CTF 3rd
- 10th place as Super Guesser
TetCTF 2021
- Won 2nd place as Super Guesser
DEFCON CTF 29
- Qualified for Final
pbctf 2020
- Won 2nd place as Super Guesser
HITCON CTF 2020
- Won 1st place as Perfect ⚔️ Guesser
Dragon CTF 2020
- Won 1st place as Perfect ⚔️ Guesser
BalsnCTF 2020
- Won 1st place as Super⚔️Blue
KipodAfterFree CTF 2020
- Won 1st place as Super Guesser
Hack.lu CTF 2020
- 8th place as Super Guesser
N1CTF 2020
- 4th place as Super Guesser
ISITDTU CTF 2020 Quals
- 4th place as Super Guesser
Tasteless CTF 2020
- Won 3rd place as Super Guesser
Evlz CTF 3.0
- Won 2nd place as Super Guesser
FwordCTF 2020
- 5th place as Super Guesser
Hackers Playground 2020(Samsung CTF)
- Won 5th prize as WreckTheLine
Arab Security Cyber Wargames 2020 Qualification
- 4th place as team sqrtnwarlock(2 man team)
PoseidonCTF 1st Edition
- Won 1st prize as the3000
3kCTF 2020
- Won 2nd prize as WreckTheLine
NahamCon CTF 2020
- Won 2nd prize as WreckTheLine
Pwn2Win 2020
- 7th Place as FireShell
CODEGATE 2020 Prequal
- 2nd Place as USACykor
WhiteHat Grand Prix 06
- 19th Place as pwnsuky
TokyoWesterns CTF 2019
- 45th Place as pwnsuky
Holyshield 2019
- 6th Place as pwnsuky
InCTF 2019
- 6th Place as pwnsuky
RITSEC CTF 2019
- 6th Place as pwnsuky
CTFZone 2019 Quals
- 19th Place as Alephsuky
N1CTF 2019
- 20th Place as pwnsuky
CODEGATE 2016
- Finalist as CONFUS3R
WhiteHat Contest 2015 FINAL
- 4th Place as HACKMAN
WhiteHat Contest 2015 Prequal
- 3rd Place as team HACKMAN
CODEGATE 2015
- Finalist as KH2RS
YISF2015
- Awarded prize by Hauri as CONFUS3R
2014 Security Olympiad Prequal
- 3rd Place as KH2RS
YISF2014
- Awarded prize by Ahnlab as CONFUS3R