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whatsdifferent
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Dreamhack
20์ฝ”์ธ
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web
Dreamhack
20์ฝ”์ธ
r-xor-t
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reversing
Dreamhack
20์ฝ”์ธ
file-special-bit
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misc
Dreamhack
20์ฝ”์ธ

๋žญํ‚น

322 ๋ช…์ด ์ฐธ์—ฌ ์ค‘์ž…๋‹ˆ๋‹ค.
Last updated: 2025.11.06. 06:12:28
์ˆœ์œ„ ์ ์ˆ˜ ์‚ฌ์šฉ์ž
1์œ„ 450 pts
utaha
CTF Second Place
2์œ„ 450 pts
avatar
J-jaeyoung
์›Œ๊ฒŒ์ž„ ํ’€์ด: 20
3์œ„ 450 pts
wkwmd
๋Œ€ํ‘œ ์—…์  ์—†์Œ
4์œ„ 450 pts
avatar
p0her
Open Beta Tester
5์œ„ 450 pts
baver
CTF First Place
6์œ„ 450 pts
PieCer
๋Œ€ํ‘œ ์—…์  ์—†์Œ
7์œ„ 450 pts
Winty
์›Œ๊ฒŒ์ž„: 1
8์œ„ 450 pts
avatar
reinusKR
Lucky 7
9์œ„ 450 pts
rev4fun
2024 Invitational Contenders
10์œ„ 450 pts
avatar
R3dzone
๊ณต๋ถ€๋ฒŒ๋ ˆ
11์œ„ 450 pts
wclee2265
๊ฐ•์˜ ์ˆ˜๊ฐ•: 10
12์œ„ 450 pts
d05004
๊ฐ•์˜ ์ˆ˜๊ฐ•: 10
13์œ„ 450 pts
avatar
grail
ํŒŒ์ดํ„ฐ
14์œ„ 450 pts
avatar
YaPoo
๊ณต๋ถ€๋ฒŒ๋ ˆ
15์œ„ 450 pts
gee_offcial
๋Œ€ํ‘œ ์—…์  ์—†์Œ

๊ฒฐ๊ณผ

์‚ฌ์šฉ์ž
LP
๋ณ€๋™๋œ ํ‹ฐ์–ด
utaha
2013
385
Platinum I
avatar
J-jaeyoung
1854
183
Platinum III
wkwmd
1814
125
Platinum III
avatar
p0her
1657
124
Gold II
ํƒˆํ‡ดํ•œ ์ด์šฉ์ž
1610
Gold II
baver
1686
152
Gold II
PieCer
1645
113
Gold II
Winty
1800
113
Platinum III
avatar
reinusKR
1420
99
Silver I
rev4fun
1774
116
Gold I
avatar
R3dzone
1481
Silver I
wclee2265
1707
109
Gold I
d05004
1389
139
Silver II
avatar
grail
1571
Gold III
avatar
YaPoo
1630
105
Gold II
gee_offcial
1563
Gold III
avatar
is07king
1538
120
Gold III
avatar
CelebrateEverydaylikeabirthday
1623
Gold II
qwere36
1597
97
Gold III
ga1axy
1684
91
Gold II
avatar
zulloper
1676
91
Gold II
๋ฏธ๋ฃจ๋‚˜๋ฌด
1457
88
Silver I
avatar
๋ฐ˜์ง€์˜์ œ์™•
1662
80
Gold II
avatar
OSORI
1759
68
Gold I
Scripter36
1533
Gold III
avatar
JalniK
1530
Gold III
avatar
sinsa
1503
91
Gold III
avatar
movptr
1764
109
Gold I
avatar
skysquirrel
1619
75
Gold II
wy
1668
143
Gold II
Season 4
Dreamhack CTF Season 4 Round #2 (๐ŸŒฑDiv2)
์ผ์‹œ
2023.07.29. 09:00:00
~ 2023.07.29. 23:59:59
328
๋ช… ์ฐธ์—ฌํ•จ
CTF ๊ฐœ์ตœ
Dreamhack
์ง„ํ–‰์‹œ๊ฐ„
15์‹œ๊ฐ„
ํŒ€ ๊ทœ๋ชจ
๊ฐœ์ธ
๊ฐœ์š”

Dreamhack CTF๋Š” ์ •๊ธฐ์ ์œผ๋กœ ๊ฐœ์ตœ๋˜๋Š” ๋Œ€ํšŒ์ž…๋‹ˆ๋‹ค.

๋ฌธ์˜

๊ทœ์น™
  1. CTF ์ฐธ๊ฐ€์ž ๊ฐ„์˜ ์ •๋‹ต ๊ณต์œ  ๋ฐ ํ’€์ด ๊ณผ์ • ๊ณต์œ ๋Š” ์—„๊ฒฉํžˆ ๊ธˆ์ง€๋˜์–ด ์žˆ์œผ๋ฉฐ, ์‹ค๊ฒฉ์˜ ๋Œ€์ƒ์ด ๋  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค.
  2. CTF ์ฐธ์—ฌ์ž๋Š” ๋ฐ˜๋“œ์‹œ ๊ณต๊ฒฉ ๋Œ€์ƒ์œผ๋กœ ์ •ํ•ด์ง„ ์„œ๋ฒ„๋งŒ์„ ์ ‘์†ํ•˜๊ณ  ๊ณต๊ฒฉํ•ด์•ผ ํ•ฉ๋‹ˆ๋‹ค.
  3. Dreamhack์„ ํฌํ•จํ•œ CTF ์„œ๋ฒ„ ์šด์˜์— ์˜ํ–ฅ์„ ๋ฏธ์น˜๋Š” ํ–‰์œ„ ํ˜น์€ ์›ํ™œํ•œ ์ง„ํ–‰์— ๋ฐฉํ•ด๊ฐ€ ๋  ์ˆ˜ ์žˆ๋Š” ํ–‰๋™ ๋ฐ ์‹œ๋„ ๋˜ํ•œ ์‹ค๊ฒฉ์˜ ๋Œ€์ƒ์ด ๋  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค.
๋ณด์ƒ
  • ๋“œ๋ฆผํ•ต ๊ตฟ์ฆˆ(์Šฌ๋ฆฌํผ)
    • ์ƒ์œ„ 1๋ช…
    • ์ถ”์ฒจ 4๋ช… (์ตœ์†Œ ํ•œ ๋ฌธ์ œ ์ด์ƒ ํ•ด๊ฒฐํ•œ ์‚ฌ๋žŒ)
์ฑ„์ 

๊ฐ ๋ฌธ์ œ์˜ ์ ์ˆ˜๋Š” ํ’€์ด์ž ์ˆ˜์— ๋”ฐ๋ผ ์กฐ์ •๋ฉ๋‹ˆ๋‹ค.

ํ”Œ๋ž˜๊ทธ ํ˜•์‹

ํ”Œ๋ž˜๊ทธ์˜ ํ˜•์‹์€ DH{...}์ž…๋‹ˆ๋‹ค.

ํ”Œ๋ž˜๊ทธ ์ œ์ถœ ์ œํ•œ
๋ฌธ์ œ๋‹น 30์ดˆ๋งˆ๋‹ค ํ•œ ๋ฒˆ์”ฉ Flag๋ฅผ ์ œ์ถœ ํ•  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค.