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crypto
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20์ฝ”์ธ
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๋žญํ‚น

292 ๋ช…์ด ์ฐธ์—ฌ ์ค‘์ž…๋‹ˆ๋‹ค.
Last updated: 2025.11.05. 19:52:38
์ˆœ์œ„ ์ ์ˆ˜ ์‚ฌ์šฉ์ž
1์œ„ 811 pts
avatar
pandas
First Person
2์œ„ 811 pts
Tara
๋Œ€ํ‘œ ์—…์  ์—†์Œ
3์œ„ 811 pts
avatar
hojune02
๋ฆฌ๋ฒ„์‹ฑ ์ดˆ์‹ฌ์ž
4์œ„ 811 pts
์šฐ๋„์šฐ๋„
Misc ์ดˆ์‹ฌ์ž
5์œ„ 811 pts
YEONBA
.HACK 2025 ์ฐธ๊ฐ€์ž
6์œ„ 811 pts
avatar
clay419
๋Œ€ํ‘œ ์—…์  ์—†์Œ
7์œ„ 811 pts
avatar
hebi
๊ธฐ์ˆ˜๋‹จ
8์œ„ 811 pts
avatar
daeseong
์‹œ์Šคํ…œ ํ•ดํ‚น ์ž…๋ฌธ
9์œ„ 811 pts
ํ›„๋“œ
๋ฆฌ๋ฒ„์‹ฑ ์ „๋ฌธ๊ฐ€
10์œ„ 811 pts
Kooo
๋Œ€ํ‘œ ์—…์  ์—†์Œ
11์œ„ 811 pts
PatchLab
๋Œ€ํ‘œ ์—…์  ์—†์Œ
12์œ„ 811 pts
avatar
ByamB4
๋Œ€ํ‘œ ์—…์  ์—†์Œ
13์œ„ 811 pts
avatar
pwny0
์‹œ์Šคํ…œ ํ•ดํ‚น ์ž…๋ฌธ
14์œ„ 811 pts
์„ํ˜„
๋Œ€ํ‘œ ์—…์  ์—†์Œ
15์œ„ 811 pts
hynseok
๋Œ€ํ‘œ ์—…์  ์—†์Œ

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Gold I
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hojune02
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clay419
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hebi
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daeseong
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Silver I
ํ›„๋“œ
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1576
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Silver I
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Gold II
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Silver I
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Jotriever
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Silver I
eouya2
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Gold III
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rqda
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Gold I
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1536
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lazyming
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Season 7
Dreamhack CTF Season 7 Round #18 (๐ŸŒฑDiv2)
์ผ์‹œ
2025.09.27. 09:00:00
~ 2025.09.28. 23:59:59
314
๋ช… ์ฐธ์—ฌํ•จ
CTF ๊ฐœ์ตœ
Dreamhack
์ง„ํ–‰์‹œ๊ฐ„
2์ผ
ํ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.
  4. ๋Œ€ํšŒ๊ฐ€ ์ง„ํ–‰๋˜๋Š” ๋™์•ˆ ๋ฌธ์ œ ํŒŒ์ผ์„ ๋‹ค๋ฅธ ์‚ฌ๋žŒ๊ณผ ๊ณต์œ ํ•˜๋ฉด ์•ˆ๋ฉ๋‹ˆ๋‹ค.
๋ณด์ƒ
  • ๋“œ๋ฆผํ•ต ๋ณด์กฐ ๋ฐฐํ„ฐ๋ฆฌ
    • ์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.