๋ณธ๋ฌธ ๋ฐ”๋กœ๊ฐ€๊ธฐ
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[CrackMe] Crack Me 07 ํ’€์ด EXEINFO ์ด์šฉํ•ด์„œ Crack Me 07 ์—ด์–ด๋ณด๊ธฐ Visual Basic ์œผ๋กœ ํ”„๋กœ๊ทธ๋ž˜๋ฐ ๋˜์–ด์žˆ๊ณ , ํŒจํ‚น ๋˜์–ด ์žˆ์ง€ ์•Š๋‹ค. ์ด๋ ‡๊ฒŒ ์•Œ๊ณ  ๋„˜์–ด๊ฐˆ๊ฒŒ์š”. ์ด๋ฎค๋‹ˆํ‹ฐ๋ฒ„๊ฑฐ๋กœ ๋ฆฌ๋ฒ„์‹ฑ ์‹œ์ž‘ํ•˜๊ธฐ Name, Serial์„ ์ž…๋ ฅํ•˜๊ณ  Check ๋ฅผ ํด๋ฆญํ–ˆ๋”๋‹ˆ ๊ทธ๋ƒฅ ์‚ฌ๋ผ์ง€๋„ค์š”. ๊ฒฐ๋ก ์€ Name, Serial ๊ฐ’์„ ์ฐพ๋Š” ๋ฌธ์ œ๋„ค์š”. ํ•ด๊ฒฐ ๋ฐฉ๋ฒ• - Serial ๊ฐ’ ์ฐพ๊ธฐ ๋ฌธ์ž์—ด ๊ฒ€์ƒ‰์„ ํ•ด๋ณด๋ฉด, ์„ฑ๊ณต / ์‹คํŒจ ๋ฌธ์ž์—ด์ด ์—†์–ด์š”. ํ•˜์ง€๋งŒ ๋ฌด์กฐ๊ฑด ๋ถ„๊ธฐ๋ฌธ์ด ์žˆ์–ด์•ผ ์„ฑ๊ณต๊ณผ ์‹คํŒจ๋ฅผ ๊ตฌ๋ถ„ ํ•˜๊ฒ ์ฃ ? ์ด์ „ ๋ฌธ์ œ ์ค‘์—์„œ ์‚ฌ์šฉ๋œ ํ•จ์ˆ˜๋ฅผ ๋ณด๋Š” ๊ธฐ๋Šฅ์ด ์žˆ์–ด์ฃ , ๊ทธ ๊ธฐ๋Šฅ์„ ์ด์šฉํ•ด์„œ CMP ๋ถ„๊ธฐ๋ถ„์ด ์žˆ๋Š” ๋ถ€๋ถ„์„ ํ™•์ธํ–ˆ์–ด์š”. 2๊ฐœ๊ฐ€ ๋ณด์ด๋„ค์š”. ์ €๋Š” ์ฒซ ๋ฒˆ์งธ ๋ถ„๊ธฐ๋ฌธ์ด ์žˆ๋Š” ์ชฝ์œผ๋กœ ์ด๋™ํ–ˆ์–ด์š”. ๋ถ„๊ธฐ๋ฌธ์— ๋ธŒ๋ ˆ์ดํฌ ํฌ์ธํŠธ๋ฅผ ๊ฑธ๊ณ  F9๋ฅผ ์ด์šฉํ•ด ํ”„๋กœ๊ทธ๋žจ์„ ์‹คํ–‰ํ•˜๊ณ  ๋‚˜์„œ.. 2022. 7. 31.
[CrackMe] Crack Me 06 ํ’€์ด EXEINFO ์ด์šฉํ•ด์„œ Crack Me 06 ์—ด์–ด๋ณด๊ธฐ C++๋กœ ํ”„๋กœ๊ทธ๋ž˜๋ฐ ๋˜์—ˆ๊ณ , ํŒจํ‚น ๋˜์–ด์žˆ์ง€ ์•Š๋‹ค. ์ด ์ •๋„ ์•Œ๊ณ  ๋„˜์–ด๊ฐˆ๊ฒŒ์š”. ์ด๋ฎค๋‹ˆํ‹ฐ๋ฒ„๊ฑฐ๋กœ ๋ฆฌ๋ฒ„์‹ฑ ์‹œ์ž‘ํ•˜๊ธฐ ๋””๋ฒ„๊ฑฐ์— ํ”„๋กœ๊ทธ๋žจ์„ ์˜ฌ๋ฆฌ๊ธฐ๋งŒ ํ–ˆ๋Š”๋ฐ, cmd ์ฐฝ์ด ๋œจ๋„ค์š”. ์ด์ œ F9๋ฅผ ์ด์šฉํ•ด์„œ ํ”„๋กœ๊ทธ๋žจ์„ ์‹คํ–‰ํ•ด๋ณผ๊ฒŒ์š”. ํ”„๋กœ๊ทธ๋žจ์ด ์‹œ์ž‘๋˜๋ฉด Password๋ฅผ ์ž…๋ ฅ ๋ฐ›๊ณ  ํŒจ์Šค์›Œ๋“œ์˜ ์ •๋‹ต์„ ์•Œ๋ ค์ฃผ๋„ค์š”. ์ฒซ ๋ฒˆ์งธ ํ•ด๊ฒฐ ๋ฐฉ๋ฒ• - ์ฝ”๋“œ ์ˆ˜์ • ๋ฌธ์ž์—ด ๊ฒ€์ƒ‰์„ ์ด์šฉํ•ด์„œ ์—๋Ÿฌ ๋ฌธ์ž์—ด์ด ์žˆ๋Š” ๊ณณ์œผ๋กœ ์™”์–ด์š”. ์กฐ๊ธˆ ์œ„๋ฅผ ๋ณด๋ฉด ํŒจ์Šค์›Œ๋“œ๊ฐ€ ๋งž์•˜์„ ๋•Œ ๋งž์•˜๋‹ค๊ณ  ๋„์›Œ์ฃผ๋Š” ๋ฌธ์ž์—ด์ด ์žˆ๊ณ , ๊ทธ ์œ„๋ฅผ ๋ณด๋ฉด ๋ถ„๊ธฐ๋ฌธ๊ณผ ํŒจ์Šค์›Œ๋“œ๊ฐ€ ํ‹€๋ ธ์„ ๊ฒฝ์šฐ ์—๋Ÿฌ ๋ฌธ์ž์—ด๋กœ ์ ํ”„ํ•˜๋Š” JMP ๋ช…๋ น์–ด๊ฐ€ ๋ณด์ด๋„ค์š”. ๊ทธ๋Ÿผ JNZ ๋ช…๋ น์–ด๊ฐ€ ์ž‘๋™๋˜์ง€ ์•Š๋„๋ก NOP ๋ช…๋ น์–ด๋กœ ์ˆ˜์ •ํ•ด์ค„๊ฒŒ์š”. ์„ฑ๊ณตํ–ˆ๋„ค์š”. NOP ๋ช…๋ น์–ด ๋ง๊ณ  JMP.. 2022. 7. 31.
[CrackMe] Crack Me 05 ํ’€์ด EXEINFO ์ด์šฉํ•ด์„œ Crack Me 05 ์—ด์–ด๋ณด๊ธฐ ํŒจํ‚น ๋˜์–ด์žˆ์ง€ ์•Š๋‹ค. ์ด ์ •๋„๋งŒ ์•Œ๊ณ  ๋„˜์–ด๊ฐˆ๊ฒŒ์š”. ์ด๋ฎค๋‹ˆํ‹ฐ๋ฒ„๊ฑฐ๋กœ ๋ฆฌ๋ฒ„์‹ฑ ์‹œ์ž‘ํ•˜๊ธฐ Serial ๊ฐ’์„ ์ฐพ๋Š” ๋ฌธ์ œ๋„ค์š”. Serial ์ž…๋ ฅ๋ž€์— ์•„๋ฌด ๊ฐ’์ด๋‚˜ ์ž…๋ ฅํ•œ ํ›„ Check๋ฅผ ํด๋ฆญํ•˜๋ฉด, Error ์ฐฝ์ด ๋œจ๋„ค์š”. ์ฒซ ๋ฒˆ์งธ ํ•ด๊ฒฐ ๋ฐฉ๋ฒ• - ์ฝ”๋“œ ์ˆ˜์ • ๋ฌธ์ž์—ด ๊ฒ€์ƒ‰์„ ํ†ตํ•ด ์—๋Ÿฌ ๋ฌธ์ž์—ด์ด ์žˆ๋Š” ์ฝ”๋“œ๋กœ ์™”์–ด์š”. ์ดํ›„ ๋ฐ”๋กœ ์œ„๋ฅผ ๋ณด๋ฉด, CMP ๋ถ„๊ธฐ๋ฌธ ์•„๋ž˜์— ์กฐ๊ฑด์„ ๋งŒ์กฑ ํ•  ๊ฒฝ์šฐ ์„ฑ๊ณตํ–ˆ๋‹ค๋Š” ์ฐฝ์„ ๋„์›Œ์ฃผ๋Š” ํ•จ์ˆ˜๋กœ ์ ํ”„ํ•˜๋„ค์š”. ์ด ๋ถ€๋ถ„์„ JMP๋กœ ์ˆ˜์ •ํ•˜์—ฌ ์–ด๋–ค ๊ฐ’์„ ์ž…๋ ฅ ํ•˜๋˜์ง€ ํ•ญ์ƒ ์„ฑ๊ณตํ–ˆ๋‹ค๋Š” ์ฐฝ์„ ๋„์›Œ์ฃผ๋„๋ก ํ•ด๋ณผ๊ฒŒ์š”. JE ๋ช…๋ น์–ด๋ฅผ JMP ๋ช…๋ น์–ด๋กœ ์ˆ˜์ •ํ•˜๊ณ  ํ”„๋กœ๊ทธ๋žจ์„ ์‹คํ–‰ํ•ด๋ณผ๊ฒŒ์š”. ์„ฑ๊ณต์ด๋„ค์š” ใ…Žใ…Ž ๋‘ ๋ฒˆ์งธ ํ•ด๊ฒฐ ๋ฐฉ๋ฒ• - ๋ ˆ์ง€์Šคํ„ฐ ๊ฐ’ ๋ณ€๊ฒฝ ๋‘ ๋ฒˆ์งธ ํ•ด๊ฒฐ ๋ฐฉ๋ฒ•์€ CMP ๋ถ„๊ธฐ๋ฌธ.. 2022. 7. 30.
[CrackMe] Crack Me 04 ํ’€์ด EXEINFO ์ด์šฉํ•ด์„œ Crack Me 04 ์—ด์–ด๋ณด๊ธฐ Crack Me 04 ๋ฌธ์ œ๋Š” MS Visual Basic ์œผ๋กœ ํ”„๋กœ๊ทธ๋ž˜๋ฐ ๋˜์—ˆ๊ณ , Not Packed๋ฅผ ๋ณด์•„์„œ๋Š” ํŒจํ‚น ๋˜์ง€ ์•Š์•˜๋‹ค๋Š” ๋œป ๊ฐ™์•„์š”. ์ด๋ฎค๋‹ˆํ‹ฐ๋ฒ„๊ฑฐ๋กœ ๋ฆฌ๋ฒ„์‹ฑ ์‹œ์ž‘ํ•˜๊ธฐ ํ”„๋กœ๊ทธ๋žจ์„ ์‹คํ–‰ํ•˜๊ณ , Serial ์„ ์ž…๋ ฅํ–ˆ๋Š”๋ฐ๋„ Registered ๋ฒ„ํŠผ์ด ํ™œ์„ฑํ™” ๋˜์ง€ ์•Š๋„ค์š”. ํ•ด๊ฒฐ ๋ฐฉ๋ฒ• - ๋ธŒ๋ ˆ์ดํฌ ํฌ์ธํŠธ ๋ฌธ์ž์—ด ๊ฒ€์ƒ‰, ๋ถ„๊ธฐ๋ฌธ๊ณผ JMP JE ๋“ฑ๋“ฑ ์ง€๊ธˆ๊นŒ์ง€ ํ•ด๊ฒฐํ•ด์™”๋˜ ๋ฐฉ๋ฒ•์„ ์ ์šฉ ์‹œํ‚ค๊ธฐ ์œ„ํ•ด ์ž˜ ์ฐพ์•„๋ดค์ง€๋งŒ ํ•ด๊ฒฐ ๋ฐฉ๋ฒ•์„ ์ž˜ ๋ชจ๋ฅด๊ฒ ์–ด์„œ ๊ฒฐ๊ตญ์€ ์„œ์น˜๋ฅผ ํ†ตํ•ด ํ•ด๊ฒฐํ–ˆ์–ด์š”. ํ•ด๊ฒฐ ๋ฐฉ๋ฒ•์„ ์•Œ๊ณ  ๋‚˜์„œ๋Š” ์„œ์น˜๋ฅผ ํ•˜์ง€ ์•Š์•˜๋‹ค๋ฉด ํ•ด๊ฒฐํ•˜์ง€ ๋ชป ํ–ˆ์„ ๊ฑฐ๋ผ๋Š” ์ƒ๊ฐ์„ ํ–ˆ์–ด์š”. ์šฐํด๋ฆญ ํ›„ → Search for → All intermodular calls ๋ฅผ ๋ณด๋ฉด, ์‚ฌ์šฉ๋œ ๋ชจ๋“  ๋ชจ๋“ˆ์„.. 2022. 7. 30.
[CrackMe] Crack Me 03 ํ’€์ด EXEINFO ์ด์šฉํ•ด์„œ Crack Me 03 ์—ด์–ด๋ณด๊ธฐ EXEINFO๋กœ Crack Me 03 ๋ฅผ ๋ณผ๊ฒŒ์š”. ์Œ.. ์•„๋ฌด๊ฒƒ๋„ ๋ชจ๋ฅด๊ฒ ์–ด์š”. ์šฐ์„  ์ง„ํ–‰ํ•ด๋ณผ๊ฒŒ์š”. ์ด๋ฎค๋‹ˆํ‹ฐ๋ฒ„๊ฑฐ๋กœ ๋ฆฌ๋ฒ„์‹ฑ ์‹œ์ž‘ํ•˜๊ธฐ ํ‚ค ํŒŒ์ผ์„ ์ฐพ์ง€ ๋ชปํ–ˆ๋‹ค๊ณ  ํ•˜๋„ค์š”. ์ฒซ ๋ฒˆ์งธ ํ•ด๊ฒฐ ๋ฐฉ๋ฒ• - ์ฝ”๋“œ ์ˆ˜์ • ํ”„๋กœ๊ทธ๋žจ ์‹คํ–‰ → ํ™•์ธ ํด๋ฆญ ํ›„ ์—๋Ÿฌ ์ฐฝ์„ ๋„์šฐ๋Š” ๋ถ€๋ถ„์œผ๋กœ ์ ํ”„ํ•˜์ง€ ๋ชปํ•˜๋„๋ก NOP ๋ช…๋ น์–ด๋กœ ์ˆ˜์ •ํ•ด๋ณผ๊ฒŒ์š”. ๐Ÿ’ก NOP ์•„๋ฌด ๋ช…๋ น๋„ ์ˆ˜ํ–‰ํ•˜์ง€ ์•Š๋Š” ์ฝ”๋“œ์ด๋ฉฐ, 1๋ฐ”์ดํŠธ์˜ ํฌ๊ธฐ๋ฅผ ๊ฐ€์ง€๊ณ  ๋ช…๋ น์–ด ์‚ฌ์ด์— ๋นˆ ๊ณต๊ฐ„์„ ์ฑ„์šฐ๋Š” ์—ญํ• ์„ ํ•ด์š”. ํ•ด๋‹น ๋ถ€๋ถ„์„ NOP ์ฝ”๋“œ ์ˆ˜์ • ํ›„ ํ‚ค ํŒŒ์ผ์„ ์ฐพ์•˜๋‹ค๋Š” ์ฐฝ์„ ๋„์šธ ์ˆ˜ ์žˆ์–ด์š”. ๋‘ ๋ฒˆ์งธ ํ•ด๊ฒฐ ๋ฐฉ๋ฒ• - ๋ ˆ์ง€์Šคํ„ฐ ๊ฐ’ ์ˆ˜์ • ์ด ๋ฐฉ๋ฒ•์€ ๋งž๋Š”์ง€ ๋ชจ๋ฅด๊ฒ ์ง€๋งŒ, ์ œ๊ฐ€ ์ƒ๊ฐํ•ด๋ณธ ๋ฐฉ๋ฒ•์ด์—์š”. ์—๋Ÿฌ ์ฐฝ์„ ๋„์šฐ๋Š” ํ•จ์ˆ˜๋กœ ์ ํ”„ ํ•˜๋„๋ก ๋งŒ๋“œ๋Š” ๋ถ„๊ธฐ๋ฌธ์ด 2๊ฐœ๊ฐ€.. 2022. 7. 30.
[CrackMe] Crack Me 02 ํ’€์ด EXEINFO ์ด์šฉํ•ด์„œ Crack Me 02 ์—ด์–ด๋ณด๊ธฐ ์ด๋ฒˆ์—๋„ EXEINFO ํ”„๋กœ๊ทธ๋žจ์œผ๋กœ Crack me 02 ๋ฅผ ์—ด์–ด๋ดค์–ด์š”. ์ด๋ฒˆ์—๋Š” ํ•œ ๊ฐ€์ง€ ๋ˆˆ์— ๋ณด์˜€๋Š”๋ฐ์š”. MS Visual Basic ์œผ๋กœ ํ”„๋กœ๊ทธ๋ž˜๋ฐ ํ•œ ๊ฒƒ์„ ์•Œ ์ˆ˜ ์žˆ์—ˆ์–ด์š”. ์ด๋ฎค๋‹ˆํ‹ฐ๋ฒ„๊ฑฐ๋กœ ๋ฆฌ๋ฒ„์‹ฑ ์‹œ์ž‘ํ•˜๊ธฐ ์ด๋ฎค๋‹ˆํ‹ฐ๋ฒ„๊ฑฐ์—์„œ F9๋ฅผ ์ด์šฉํ•ด ํ”„๋กœ๊ทธ๋žจ์„ ์‹คํ–‰ํ•˜๋ฉด ๋‹ค์Œ๊ณผ ๊ฐ™์€ ์ฐฝ์ด ๋‚˜์™€์š”. Name, Serial ๋„ฃ๊ณ  Check ๋ˆ„๋ฅด๋ฉด ์•„๋ž˜์™€ ๊ฐ™์ด Wrong serial! ์ฐฝ์ด ๋‚˜์™€์š”. ์—ฌ๊ธฐ์„œ ์ €๋Š” ๋นˆ์นธ์˜ ๋“ค์–ด๊ฐˆ ๊ฐ’์„ ์ฐพ๊ฑฐ๋‚˜, ํ‹€๋ฆฐ ๊ฐ’์„ ์ž…๋ ฅํ•˜๋”๋ผ๋„ Name, Serial ์ด ๋งž๋‹ค๋Š” ์ฐฝ์ด ๋‚˜์˜ค๋„๋ก ํ•˜๋ฉด ๋ฌธ์ œ๋ฅผ ํ•ด๊ฒฐ ํ•œ ๊ฒƒ์ž„์„ ์•Œ์•˜์–ด์š”. ์ฒซ ๋ฒˆ์งธ ํ•ด๊ฒฐ ๋ฐฉ๋ฒ• - ์ฝ”๋“œ ์ˆ˜์ • ๋จผ์ €, ์ด๋ฎค๋‹ˆํ‹ฐ๋ฒ„๊ฑฐ์˜ ๋ฌธ์ž์—ด ๊ฒ€์ƒ‰ ๊ธฐ๋Šฅ์„ ์ด์šฉํ•ด์„œ ์—๋Ÿฌ ๋ฉ”์‹œ์ง€๊ฐ€ ๋œฌ ๊ณณ์œผ๋กœ ์ด๋™ํ•ด๋ณผ๊ฒŒ์š”.. 2022. 7. 28.
[CrackMe] Crack Me 01 ํ’€์ด EXEINFO ์ด์šฉํ•ด์„œ Crack Me 01 ์—ด์–ด๋ณด๊ธฐ ๋ฆฌ๋ฒ„์‹ฑ์„ ์ฒ˜์Œ ์‹œ์ž‘ํ•˜๋Š” ์ €๋Š” EXEINFO ํ”„๋กœ๊ทธ๋žจ์„ ์ž˜ ๋ชจ๋ฅด๊ธฐ ๋•Œ๋ฌธ์— ์œ„ ์‚ฌ์ง„์„ ๋ณด๊ณ  ๋ฌด์—‡์„ ์•Œ์•„๋‚ด์•ผ ํ•˜๋Š”์ง€ ์ž˜ ๋ชจ๋ฅด๊ฒ ์–ด์š”. ๊ทธ๋ž˜๋„ Crack Me ํ’€์ด ๋“ค์„ ์ฐพ์•„๋ณด๋ฉด ํ”„๋กœ๊ทธ๋žจ์ด ์–ด๋–ป๊ฒŒ ๊ตฌ์„ฑ๋˜์–ด์žˆ๋Š”์ง€ ์•Œ์•„๋ณด๊ณ  ์‹œ์ž‘ํ•˜์…”์„œ ์ผ๋‹จ์€ ์ €๋„ ๋”ฐ๋ผ ํ•ด๋ณด๋ ค๊ณ  ํ•ด์š”. ์šฐ์„ , EXEINFO ํ”„๋กœ๊ทธ๋žจ์€ PEID์™€ ๋น„์Šทํ•œ ๋ถ„์„ ํ”„๋กœ๊ทธ๋žจ์ด๋ฉฐ ์‹คํ–‰ ํ›„ Drag&Drop์œผ๋กœ ๊ฐ„ํŽธํ•˜๊ฒŒ ํ•ด๋‹น ํ”„๋กœ๊ทธ๋žจ์ด ์–ด๋Š ์–ธ์–ด๋กœ ์ปดํŒŒ์ผ ๋˜์—ˆ๋Š”์ง€, ํŒจํ‚น, ํฌ๋ฆฝํŒ…, ํ”„๋กœํ…ํŒ… ์—ฌ๋ถ€์™€ ์–ด๋Š ํ”„๋กœ๊ทธ๋žจ์— ์˜ํ•ด ํŒจํ‚น ๋˜์—ˆ๋Š”์ง€ ๋“ฑ ๋‹ค์–‘ํ•œ ์ •๋ณด๋ฅผ ์•Œ ์ˆ˜ ์žˆ๋‹ค๊ณ  ํ•ด์š”. ์•ž์œผ๋กœ Crack Me ๋ฌธ์ œ๋“ค์„ ํ•ด๊ฒฐํ•ด๋‚˜๊ฐ€๋ฉฐ, EXEINFO ํ”„๋กœ๊ทธ๋žจ๋„ ์ฒœ์ฒœํžˆ ์•Œ๊ฒŒ ๋  ๊ฒƒ์„ ์•Œ๊ธฐ ๋•Œ๋ฌธ์— ์ด๋ ‡๊ฒŒ ๋„˜์–ด ๊ฐ€๋ณผ๊ฒŒ์š”. ์ด๋ฎค๋‹ˆํ‹ฐ๋ฒ„๊ฑฐ๋กœ.. 2022. 7. 21.
[CrackMe] Crack Me ์‹œ์ž‘ํ•˜๊ธฐ โœ… Download ๐Ÿ“Œ Crack Me Program ๐Ÿ“Œ PEID ๐Ÿ“Œ Immunity Debugger Immunity Debugger IMMUNITY DEBUGGER Download Download Immunity Debugger Here! Overview A debugger with functionality designed specifically for the security industry Cuts exploit development time by 50% Simple, understandable interfaces Robust and powerful scripting language www.immunityinc.com ๐Ÿ“Œ Immunity Debugger Font Setting 2022. 7. 18.
[FTZ] FTZ Level 02 [FTZ] FTZ Level 01 [FTZ] FTZ ์‹œ์ž‘ํ•˜๊ธฐ โœ… Program Download ๐Ÿ“Œ VMware Download VMware Workstation Pro 16 Download ๐Ÿ‘‰๐Ÿป Download VMware Workstation Pro Link VMware Workstation Pro 16 license keys ZF3R0-FHED2-M80TY-8QYGC.. alltime-it.tistory.com ๐Ÿ‘ค USER : level2 ๐Ÿ”’PASSWORD : hacker or cracker ๐Ÿ“Œ ํ˜„์žฌ ๊ฒฝ๋กœ ํ™•์ธ [level2@ftz level2]$ pwd /home/level2 ๐Ÿ“Œ ๋””๋ ‰ํ„ฐ๋ฆฌ ๋ชฉ๋ก ํ™•์ธ [level2@ftz level2]$ ls -l total 12 -rw-r--r-- 1 root ro.. 2022. 7. 17.
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