corCTF twitter participated with cat :flag_kr: and placed 3rd blockchain/baby-wallet (24 solves) //SPDX-License-Identifier: UNLICENSED pragma solidity ^0.8.17; // 100 ether contract BabyWall...
(CTF) Google CTF 2023 writeup (oldschool, ubf)
oldschool Analyzing the logic, there is a condition that when password is made into a 5x5 matrix and matrix multiplication is performed with a 5x5 matrix made using id after sbox, xor, and shift ro...
(CTF) SEETF CTF 2023 NOW, Murky SEEPass writeup
Date: June 12, 2023 rank: 1 team: ProjectSekai It’s the first writeup since joining the ProjectSekai. I joined the second day after CCE (local ctf organized by NIS). I took some reversing and smar...
(CTF) just CTF 2023 rustberry, manGO writeup
rustberry if (puVar1 != (undefined4 *)0x0) { puVar1[0x25] = 0x7; puVar1[0x29] = 0x1c; puVar1[0x2a] = 0xff; puVar1[0x18] = 0x3; puVar1[0x26] = 0x21; puVar1[0x19] = 0x1a; ...
(CTF) angstrom CTF 2023 noleek writeup
Date: April 27, 2023 team: ST4RT noleek - PWN #include <stdio.h> #include <stdlib.h> #define LEEK 32 void cleanup(int a, int b, int c) {} int main(void) { setbuf(stdout, NULL);...
(CTF) Plaid CTF 2023 Treasure Map, CSS writeup
Date: April 16, 2023 team: ST4RT There were two javascript&css reversing challenges in Plaid CTF, I had a headache, so just solved two easy challenges Treasure Map - REV import { go } from "...
(CTF) LINE CTF 2023 fishing writeup
Date: March 25, 2023 rank: 60 team: ST4RT fishing - rev ( 166 pt, 32 solve ) In _main function, calls _do_global_ctors and functions at 0x140004100 are called in turn _main 함수에서 _do_global_c...
(CTF) 2023 b01lers CTF writeup
Date: March 20, 2023 rank: 19 team: ST4RT cfifuuufuuuuu ( 398 pt, 13 solve ) there are two files loader.pyc, a binary while 1: # res = ptrace(PTRACE_GETREGS, pid, 0, ctypes.addressof(regs)) ...
(CTF) 2022 hxp required writeup
rank: 68 required ( 182 pt, 43 solve ) f=[...require('fs').readFileSync('./flag')] require('./28')(753,434,790) require('./157')(227,950,740) require('./736')(722,540,325) require('./555')(937,26...
(CTF) 2022 Seccon Doroboh writeup
대회기간에는 못풀었는데 아쉬워서 풀이 참고해 적어봄 The following diagram discribes what each file is. Do not run araiguma.exe unless you fully understand the logic. +-- Victim Machine --+ +-- Attacker Machine --...