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[Reverse Engineering] CodeEngn Basic RCE L14 WriteUp โ›ฑ๏ธ CodeEngn Basic RCE L14 WriteUp 1. ๋ฌธ์ œ ํ™•์ธ ํ›„ ํŒŒ์ผ ๋‹ค์šด๋กœ๋“œ 2. 7-Zip File Manager ์„ ํ†ตํ•ด ํŒŒ์ผ ์••์ถ• ํ•ด์ œ --> 14 ํŒŒ์ผ ์† ์‘์šฉ ํ”„๋กœ๊ทธ๋žจ ๋ฐœ๊ฒฌ 3. 14.exe ํŒŒ์ผ์„ ์‹คํ–‰ํ•˜์—ฌ ์ž„์˜์˜ ๊ฐ’์„ ์ž…๋ ฅํ•œ ํ›„ "Check" ํด๋ฆญ --> Serial ์ด ํ‹€๋ ธ๋‹ค๋Š” ์•ˆ๋‚ด๋ฌธ์ด ์ถœ๋ ฅ 4. ๊ด€๋ จ ์ •๋ณด ์ˆ˜์ง‘์„ ์œ„ํ•ด Detect It Easy ๋ฅผ ํ†ตํ•ด ํŒŒ์ผ ์˜คํ”ˆ --> ํŒŒ์ผ์ด UPX ํ˜•์‹์œผ๋กœ ํŒจํ‚น๋˜์–ด์žˆ์Œ์„ ํ™•์ธ ++ ์•„์ง Detect It Easy ๋ฅผ ์„ค์น˜ํ•˜์ง€ ์•Š์•˜๋‹ค๋ฉด? --> https://www.majorgeeks.com/ MajorGeeks.Com - MajorGeeks www.majorgeeks.com 5. ํŒจํ‚น๋œ ์ƒํƒœ์ธ 14 ํŒŒ์ผ์— ๋Œ€ํ•˜์—ฌ ์–ธํŒจํ‚น ์ง„ํ–‰ ++ UP.. 2023. 11. 10.
[Reverse Engineering] CodeEngn Basic RCE L13 WriteUp ๐Ÿ CodeEngn Basic RCE L13 WriteUp 1. ๋ฌธ์ œ ํ™•์ธ ํ›„ ํŒŒ์ผ ๋‹ค์šด๋กœ๋“œ 2. 7-Zip File Manager ์„ ํ†ตํ•ด ํŒŒ์ผ ์••์ถ• ํ•ด์ œ --> 13 ํŒŒ์ผ ์† ์‘์šฉ ํ”„๋กœ๊ทธ๋žจ ๋ฐœ๊ฒฌ 3. 13.exe ํŒŒ์ผ์„ ์‹คํ–‰ํ•˜์—ฌ ์ž„์˜์˜ ๊ฐ’์„ ์ž…๋ ฅํ•œ ํ›„ "Enter" ํด๋ฆญ --> ํŒจ์Šค์›Œ๋“œ๊ฐ€ ํ‹€๋ ธ๋‹ค๋Š” ์•ˆ๋‚ด๋ฌธ์ด ์ถœ๋ ฅ 4. ๊ด€๋ จ ์ •๋ณด ์ˆ˜์ง‘์„ ์œ„ํ•ด Detect It Easy ๋ฅผ ํ†ตํ•ด ํŒŒ์ผ ์˜คํ”ˆ --> ํŒŒ์ผ์ด .NET ํ˜•์‹์ž„์„ ํ™•์ธ 5. ํŒŒ์ผ ๋ถ„์„์„ ์œ„ํ•ด dnspy ๋‹ค์šด๋กœ๋“œ ++ dnspy ๋‹ค์šด๋กœ๋“œ ๋ฐฉ๋ฒ•์ด ๊ถ๊ธˆํ•˜๋‹ค๋ฉด? --> https://alim11.tistory.com/484 [Debugging & Assembly] DnSpy ํˆด ๋‹ค์šด๋กœ๋“œ ๋ฐ ์‚ฌ์šฉ ๋ฐฉ๋ฒ• ๐Ÿ‘พ DnSpy ๋ž€? DnSpy๋Š” .NET ์–ด์…ˆ๋ธ”๋ฆฌ ํŽธ์ง‘.. 2023. 11. 10.
[Reverse Engineering] CodeEngn Basic RCE L12 WriteUp ๐Ÿ’ฅ CodeEngn Basic RCE L12 WriteUp 1. ๋ฌธ์ œ ํ™•์ธ ํ›„ ํŒŒ์ผ ๋‹ค์šด๋กœ๋“œ 2. 7-Zip File Manager ์„ ํ†ตํ•ด ํŒŒ์ผ ์••์ถ• ํ•ด์ œ --> 12 ํŒŒ์ผ ์† ์‘์šฉ ํ”„๋กœ๊ทธ๋žจ ๋ฐœ๊ฒฌ 3. 12.exe ํŒŒ์ผ์„ ์‹คํ–‰ํ•˜์—ฌ ์ž„์˜์˜ ๊ฐ’์„ ์ž…๋ ฅํ•œ ํ›„ "Check" ๋ฒ„ํŠผ ํด๋ฆญ --> ์•„๋ฌด ์ผ๋„ ์ผ์–ด๋‚˜์ง€ ์•Š์Œ์„ ํ™•์ธ 4. 12.exe ํŒŒ์ผ์„ Immunity Debugger ์—์„œ ์‹คํ–‰ 5. ์Šคํฌ๋กค์„ ๋‚ด๋ฆฌ๋‹ค๋ณด๋‹ˆ, ์‚ฌ์šฉ์ž๋กœ๋ถ€ํ„ฐ ์ž…๋ ฅ๋ฐ›์€ Key ๊ฐ’์„ ์ง„์งœ Key ๊ฐ’๊ณผ ๋น„๊ตํ•˜๋Š” ๋ถ€๋ถ„ ๋ฐœ๊ฒฌ ++ ์œ ์ถ” ๊ฐ€๋Šฅํ•œ ์‚ฌ์‹ค๋“ค # ์ง„์งœ Key ๊ฐ’ : 7A2896BF # ์‚ฌ์šฉ์ž๊ฐ€ ์ž…๋ ฅํ•œ Key ๊ฐ’ : EAX ๋ ˆ์ง€์Šคํ„ฐ์— ์ €์žฅ 6. ๋‹ค์‹œ 12.exe ํŒŒ์ผ์„ ๋”๋ธ”ํด๋ฆญํ•˜์—ฌ ๋ฐœ๊ฒฌํ•œ ์ง„์งœ Key ๊ฐ’ ์ž…๋ ฅ --> ๋ฌธ์ œ๊ฐ€ ์„ฑ๊ณต์ ์œผ๋กœ ํ•ด๊ฒฐ๋˜์—ˆ.. 2023. 11. 9.
[Reverse Engineering] CodeEngn Basic RCE L11 WriteUp ๐Ÿ…ฑ๏ธ CodeEngn Basic RCE L11 WriteUp 1. ๋ฌธ์ œ ํ™•์ธ ํ›„ ํŒŒ์ผ ๋‹ค์šด๋กœ๋“œ 2. 7-Zip File Manager ์„ ํ†ตํ•ด ํŒŒ์ผ ์••์ถ• ํ•ด์ œ --> 11 ํŒŒ์ผ ์† ์‘์šฉ ํ”„๋กœ๊ทธ๋žจ ๋ฐœ๊ฒฌ 3. ๊ด€๋ จ ์ •๋ณด ์ˆ˜์ง‘์„ ์œ„ํ•ด Detect It Easy ๋ฅผ ํ†ตํ•ด ํŒŒ์ผ ์˜คํ”ˆ --> ํŒŒ์ผ์ด UPX ํ˜•์‹์œผ๋กœ ํŒจํ‚น๋˜์–ด์žˆ์Œ์„ ํ™•์ธ ++ ์•„์ง Detect It Easy ๋ฅผ ์„ค์น˜ํ•˜์ง€ ์•Š์•˜๋‹ค๋ฉด? --> https://www.majorgeeks.com/ MajorGeeks.Com - MajorGeeks www.majorgeeks.com 4. ํŒจํ‚น๋œ ์ƒํƒœ์ธ 11 ํŒŒ์ผ์— ๋Œ€ํ•˜์—ฌ ์–ธํŒจํ‚น ์ง„ํ–‰ ++ UPX ํŒจํ‚น๋œ ํŒŒ์ผ ์–ธํŒจํ‚นํ•˜๊ธฐ --> https://alim11.tistory.com/456 [UPX Un/Packer] UPX.. 2023. 11. 7.
[MySQL & Spring Boot] ํšŒ์› ํ”„๋กœ์ ํŠธ _1) ์ดˆ๊ธฐ ๊ฐœ๋ฐœํ™˜๊ฒฝ ์„ธํŒ… ๐Ÿ’™ ํšŒ์› ํ”„๋กœ์ ํŠธ _1) ์ดˆ๊ธฐ ๊ฐœ๋ฐœํ™˜๊ฒฝ ์„ธํŒ…โ€ป ๋ณธ ํ”„๋กœ์ ํŠธ์™€ ๊ด€๋ จ๋œ ์ œ ๋ชจ๋“  ๊ฒŒ์‹œ๋ฌผ์€ ์ œ ๊ฐœ์ธ ๊ณต๋ถ€ ๊ธฐ๋ก ๋ชฉ์ ์œผ๋กœ ์ž‘์„ฑ๋˜์—ˆ์œผ๋ฉฐ, ์ž๋ฃŒ ์ถœ์ฒ˜๋Š” '์ฝ”๋”ฉ๋ ˆ์‹œํ”ผ'๋‹˜์˜ [์Šคํ”„๋ง๋ถ€ํŠธ ํšŒ์› ํ”„๋กœ์ ํŠธ] ์ž…๋‹ˆ๋‹ค! -->  https://www.youtube.com/watch?v=RhM1bQ76Tv0&list=PLV9zd3otBRt5ANIjawvd-el3QU594wyx7  1. ์•„๋ž˜ ์ดˆ๊ธฐ ๊ฐœ๋ฐœ ํ™˜๊ฒฝ ์„ธํŒ…๊ฐœ๋ฐœ ํ™˜๊ฒฝLibrary of FrameworkOpen JDK 11 (Amazon Corretto 11)Spring Data JPAIntelliJ IDEA CommunitythymeleafMySQL Server 8.0.lombokSpring Boot 2.6.12gradle2. IntelliJ ์—์„œ Git Clone ํ•ด์˜ค๊ธฐ .. 2023. 11. 7.
[GitHub & Git] ๊นƒํ—ˆ๋ธŒ(GitHub) README.md ํŒŒ์ผ์— BaekJoon(๋ฐฑ์ค€) ํ‹ฐ์–ด ๋‚˜ํƒ€๋‚ด๊ธฐ #๏ธโƒฃ ๊นƒํ—ˆ๋ธŒ(GitHub) README.md ํŒŒ์ผ์— BaekJoon(๋ฐฑ์ค€) ํ‹ฐ์–ด ๋‚˜ํƒ€๋‚ด๊ธฐ 1. ๋ณธ์ธ ๊ณ„์ •์˜ README.md ํŒŒ์ผ ์—ด๊ธฐ --> ํŽธ์ง‘ ๋ฒ„ํŠผ ํด๋ฆญ 2. ์•„๋ž˜ ์ฝ”๋“œ๋ฅผ README.md ํŒŒ์ผ ์† ์›ํ•˜๋Š” ์œ„์น˜์— ์ž…๋ ฅ [![Solved.ac Profile](http://mazassumnida.wtf/api/v2/generate_badge?boj=๋ณธ์ธ์˜ ๋ฐฑ์ค€ ID)](https://solved.ac/๋ณธ์ธ์˜ ๋ฐฑ์ค€ ID/) ++ ์ฝ”๋“œ ๋ฐ ํ…Œ๋งˆ์— ๋Œ€ํ•œ ์ถ”๊ฐ€์ ์ธ ์ •๋ณด๋ฅผ ์–ป๊ณ  ์‹ถ๋‹ค๋ฉด? --> https://github.com/mazassumnida/mazassumnida GitHub - mazassumnida/mazassumnida: Github ํ”„๋กœํ•„์—์„œ boj ํ”„๋กœํ•„์„ ์ด์˜๊ฒŒ ๋ณด์—ฌ์ฃผ๋Š” ํ”„๋กœ์ ํŠธ Githu.. 2023. 11. 6.

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