@ptr-yudai - AlpacaHack

ptr-yudai

@ptrYudai

AUTHORED CHALLENGES

OPEN DATE	CHALLENGE	SOLVES
2025/03/23	giraffe.ko Pwn	13 solves
2025/03/23	Oyster Pwn	86 solves
2025/03/23	Takahashi Pwn	22 solves
2025/03/23	Kangaroo Pwn	44 solves
2024/11/23	Paragraph Pwn	3 solves
2024/11/23	TOY/2 Pwn	0 solves
2024/11/23	Reaction Rev	0 solves
2024/11/23	F is for Flag Rev	1 solve
2024/11/23	packed Rev	7 solves
2024/11/03	catcpy Pwn	117 solves
2024/11/03	wall Pwn	49 solves
2024/11/03	inbound Pwn	171 solves
2024/11/03	ideabook Pwn	28 solves
2024/10/05	I2C Device Rev	6 solves
2024/08/18	todo Pwn	19 solves
2024/08/18	deck Pwn	33 solves
2024/08/18	hexecho Pwn	97 solves
2024/08/18	echo Pwn	280 solves
2023/11/11	Gaming VM Rev	5 solves
2023/11/11	bofwow Pwn	9 solves
2023/11/11	bofww Pwn	29 solves
2023/11/11	imgchk Rev	6 solves
2023/11/11	unicomp Sandbox	1 solve
2023/11/11	Word Tower Cheat	2 solves
2023/11/11	OpenBio 2 Web	5 solves
2023/11/11	decryptyou Pwn Crypto	3 solves
2023/11/11	Country DB Web	181 solves
2023/11/11	Memorial Cabbage Pwn	15 solves
2023/11/11	cranelift Sandbox	2 solves
2023/11/11	TOWFL Web Cheat	38 solves
2023/11/11	vtable4b Pwn	46 solves
2023/11/11	AdBlog Web	9 solves
2023/11/11	nande Rev	12 solves
2023/07/15	WISE Pwn	0 solves
2023/07/15	NetFS 1 Misc	9 solves
2023/07/15	aush Pwn	16 solves
2023/07/15	topology Rev	4 solves
2023/07/15	fvm Rev	4 solves
2023/07/15	NetFS 2 Misc	2 solves
2023/07/15	qjail Pwn	3 solves
2023/07/15	decompile me Rev	36 solves
2023/07/15	sharr Pwn	0 solves
2023/07/15	Himitsu Note Pwn	3 solves
2023/07/15	mimikyu Rev	12 solves
2023/07/15	SquareRNG Crypto	12 solves
2023/07/15	ScoreShare Web	1 solve
2023/07/15	BrainJIT Pwn	3 solves
2023/03/21	before-write Pwn	129 solves
2023/03/21	write Pwn	68 solves
2023/03/21	read-write Pwn	31 solves
2023/03/21	1R-AES Crypto	12 solves
2023/03/21	XOR-CBC Crypto	61 solves
2023/03/21	Reused-AES Crypto	26 solves
2023/03/21	Collision-DES Crypto	30 solves
2023/03/21	only-read Pwn	17 solves
2022/09/03	luau Rev	24 solves
2022/09/03	OpenBio Web	19 solves
2022/09/03	str.vs.cstr Pwn	20 solves
2022/09/03	ImageSurfing Misc Web	2 solves
2022/09/03	matsushima3 Cheat	0 solves
2022/09/03	smal arey Pwn	11 solves
2022/09/03	C-Sandbox Misc	4 solves
2022/09/03	Cake Memory Cheat	1 solve
2022/09/03	readme 2022 Misc	10 solves
2022/09/03	CakeGEAR Web	63 solves
2022/09/03	kiwi Rev	6 solves
2022/09/03	crc32pwn Pwn	0 solves
2022/09/03	welkerme Pwn	19 solves
2022/09/03	nimrev Rev	58 solves
2022/09/03	Panda Memo Web	1 solve
2022/09/03	zundamon Rev Forensics	5 solves
2022/03/19	kRCE Pwn	3 solves
2022/03/19	miniblog++ Web	6 solves
2022/03/19	accountant Pwn	5 solves
2022/03/19	service Rev	5 solves
2022/03/19	GitFile Explorer Web	31 solves
2022/03/19	Anti-Fermat Crypto	19 solves
2022/03/19	MathHash Misc	1 solve
2022/03/19	sbxnote Pwn	0 solves
2022/03/19	miniblog# Web	0 solves
2022/03/19	dreamland Rev	0 solves
2022/03/19	q-solved Quantum Rev	0 solves
2022/03/19	redis-lite Pwn	0 solves
2022/03/19	Zer0TP Misc Web	0 solves
2022/03/19	MemSafeD Pwn	3 solves
2022/03/19	kvstore Pwn	0 solves
2022/03/19	0AV Misc	0 solves

CTF HISTORY

START DATE	CTF	RANK
2025/03/23	AlpacaHack Round 10 (Pwn)	43 / 95
2025/03/01	SECCON CTF 13 決勝観戦CTF	94 / 233
2024/12/30	AlpacaHack Round 8 (Rev)	7 / 316
2024/11/30	AlpacaHack Round 7 (Web)	79 / 458
2024/09/01	AlpacaHack Round 2 (Web)	11 / 300
2024/08/18	AlpacaHack Round 1 (Pwn)	58 / 174

WRITEUPS

WRITEUP	CREATED AT
AlpacaHack Round 6 (Pwn)のWriteup - CTFするぞ ja official AlpacaHack Round 6 (Pwn)	8 months ago
AlpacaHack Round 1 (Pwn)のWriteup - CTFするぞ ja official AlpacaHack Round 1 (Pwn)	11 months ago

SOLVED CHALLENGES

CHALLENGE	SOLVES	SOLVED AT
masking tape Rev AlpacaHack Round 8 (Rev)	136 solves	6 months ago
hidden Rev AlpacaHack Round 8 (Rev)	56 solves	6 months ago
subway Rev AlpacaHack Round 8 (Rev)	12 solves	6 months ago
CaaS Web AlpacaHack Round 2 (Web)	74 solves	10 months ago
Simple Login Web AlpacaHack Round 2 (Web)	443 solves	10 months ago