๋ณธ๋ฌธ ๋ฐ”๋กœ๊ฐ€๊ธฐ
โœ’๏ธ Reverse Engineering/Dreamhack

[Dreamhack] rev-basic-1 WriteUp

by A Lim Han 2023. 11. 20.

โ˜‚๏ธ rev-basic-1 WriteUp

1.  ๋ฌธ์ œ ์„ค๋ช… ํ™•์ธ ํ›„ ํŒŒ์ผ ๋‹ค์šด๋กœ๋“œ

2.  ๋‹ค์šด๋ฐ›์€ ์‘์šฉ ํ”„๋กœ๊ทธ๋žจ ์‹คํ–‰ ํ›„ ์ž„์˜์˜ ๋ฌธ์ž์—ด ์ž…๋ ฅ  -->  Enter ์„ ํด๋ฆญํ•˜๋‹ˆ ํ”„๋กœ๊ทธ๋žจ์ด ์ข…๋ฃŒ๋จ์„ ํ™•์ธ

3.  x64dbg๋ฅผ ํ†ตํ•ด ์‘์šฉ ํ”„๋กœ๊ทธ๋žจ ์˜คํ”ˆ

4.  ์ƒ๋‹จ์˜ '๊ธฐํ˜ธ' ํƒญ์—์„œ 'chall1.exe' ํด๋ฆญ

5.  ์ž…๋ ฅ๋ฐ›์€ ๋ฌธ์ž์—ด์„ ์ •๋‹ต๊ณผ ๋น„๊ตํ•˜๋Š” ๋ถ€๋ถ„ ๋ฐœ๊ฒฌ  -->  ์ •๋‹ต์€ "DH{Compar3_the_ch4ract3r}"

6.  ๋ฐœ๊ฒฌํ•œ FLAG ์ž…๋ ฅ  -->  ๋ฌธ์ œ ํ•ด๊ฒฐ ์„ฑ๊ณต

 

'โœ’๏ธ Reverse Engineering > Dreamhack' ์นดํ…Œ๊ณ ๋ฆฌ์˜ ๋‹ค๋ฅธ ๊ธ€

[Dreamhack] rev-basic-2 WriteUp  (0) 2023.11.22
[Dreamhack] rev-basic-0 WriteUp  (0) 2023.11.19