Links
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Zeyu's CTF Writeups

Here you can find writeups from various CTFs that I've participated in.

~# man CTFs

In case you don't know what CTFs are, here's a nice definition:
A capture the flag (CTF) contest is a special kind of cybersecurity competition designed to challenge its participants to solve computer security problems and/or capture and defend computer systems.

~# groups

Social Engineering Experts is a Singapore-based team founded by a group of friends. We're always looking for active players to join us — check out the recruitment form in our CTFtime profile.

~# ls -la 2023

CTF Name
Type
Position
Insomni'hack Teaser 2023
Jeopardy
11th
IrisCTF 2023
Jeopardy
1st
TetCTF 2023
Jeopardy
4th

~# ls -la 2022

CTF Name
Type
Position
ASIS CTF Finals 2022
Jeopardy
2nd
Jeopardy
13th
Jeopardy
3rd
LakeCTF Finals
Jeopardy
6th
Jeopardy
7th
Jeopardy
N.A. (Challenge Author)
Midnight Sun CTF Finals
Jeopardy
7th
Midnight Sun CTF Quals
Jeopardy
6th
Jeopardy
8th
HITB SECCONF CTF 2022
Attack-Defense
11th
Jeopardy
7th
Jeopardy
3rd (SG) 4th (Overall)
Jeopardy
26th
Jeopardy
4th
Jeopardy
13th
Jeopardy
4th
LINE CTF 2022
Jeopardy
19th
Jeopardy
3rd
Jeopardy (Individual)
13th
Jeopardy
33rd
Jeopardy
7th

~# ls -la 2021

CTF Name
Type
Position
Jeopardy
48th
Jeopardy
Top of Scoreboard
idekCTF 2021
Jeopardy
13th
Hack Quest
7th
Jeopardy
24th
Jeopardy
16th
Jeopardy (Individual)
23rd
BuckeyeCTF 2021
Jeopardy
7th
Jeopardy
37th
pbCTF 2021
Jeopardy
32nd
DeconstruCT.F
Jeopardy
14th
Jeopardy (Individual)
3rd (SG)
33rd (Overall)
Jeopardy
23rd
Jeopardy
9th
Jeopardy
22nd
DEF CON 29 Red Team Village CTF (Finals)
Hack Quest
18th
DEF CON 29 Red Team Village CTF (Quals)
Jeopardy
16th
Jeopardy
18th
Securebug Loki CTF
Jeopardy
5th
Jeopardy
< 20%
Jeopardy
10th
Jeopardy
3rd
Jeopardy
43rd
Jeopardy
37th
Jeopardy
62nd
NorzhCTF
Hack Quest
29th
DawgCTF
Jeopardy
13th
UMDCTF
Jeopardy
8th
Jeopardy
< 20%
picoCTF
Jeopardy
< 5%
Jeopardy
< 20%

~# cat LICENSE

All original code is licensed under the MIT license.