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
base 64
KMYDCWSSIVHFQVJRJZFFM2SKI5JTCVSLKVVXAYKTIZNEUVTMKJHFG6SWJVJGWMKXKZCUUTCWNRNFSUKWNRGFKMDUK5KGWVSKKZCXQTCTNRYEOUTLMRLVCMLEJNLGW4CIKYYDCTCXKV2FMV2VNBJFMRKOLBKGWNDZKJWE4VSNNRSEWVTKKJLVGMBRINLGW5CPKNWFERCWKZHEIUZROBMFE22WKVJTCWSKKZVVURSUGFLFKVCFGFHU4RSVPFGWYTSMKNVTKTKSGFRTAUJQMRGFIVTMK5JFMTLZKZVXIV2NNNLE4VTKJJLVIRLQJVJGWMKTKMYDSTCVNN2EQV2WJZKFMVLUJNJTCUSEKZWE4V2SGBNFIUSWMRLFMRLUJRJWW6CXKIYVURCTGAYUOVCFMRME4VKOKFJTCSSEKZWFMVKRGFSE6VLLMRMVKMKWMFKWWOKDKEYFUUCVNN2EQUZROBGFMRKOK5KTA3CMKJVXQSCXKZSEIVLLMRDVI222JRLGWTSHKIYVUS2WNNSFGU32JJFFK23EKVIVMUSUKRKXIT2WGBNFMVL2JJMFEMC2KNLEKRSWKNWEMUCRNNSEOVD2JF5FOVLLGFJTAWSOKYYU4RSTGFYEIVRQNRJE22ZVJ5KGWNKGKVLFUVCWNM4UGU3LLJFFK23YKJJWWSSLKIYWGMKRGFJEYVLLJZMVKVSOJRKTA5CSK5KVEVCWKVHFMURQIUYFM22GKZJWUVSJKZKDAOKQKQYDSUCRHU6Q====
base 32
KMYDCWSSIV2FKUJRJZHVIVTMK5LFMVTBKVVXAYKSKVNEITLKJZFFGVCWJVJGWMKYKUYHQTCWNN2FSU2WJV4VKMBVKNJTCUSCKZWFETKVIVFEOUTLMN4U22SKJNLGW4CGKMYVES2VKV2EMV2VLJLFMRKOKRKGYSSUKJKTCVSVGFSEWUTKKJLVGVCKMFLGW5CPKRCVUTCWNRGXSUZROBCFORKGKZKTCVSIKFLGYWCRGFNFKVCFGVJVGRK2IRGTATSMKNWFUS2WGFRTAUJQOBGFO23YI5KFMWSEKZCWIQ2NNNNEQVSVOBJFIRLQJBJGW5CTKRCXQSKSKQYDSUCUGA4VAUJ5HU======
KMYDKTCSNMYVUUZRJZEFC23II5LFMWSLKVKXIS2SNRKTAVTLPBFFG222JVJEKTJQKEYFUTCSNRSEMUSWJF4VI2ZVKNLFKVS2KZCXAUSUGAYWCVTLNRHFC3CKJVJWW4CJKZLFMVCTGB2FGUJQLJGFKRLLHE======
KNKFMYKSGBHFUVJQKJFU4VLIJFLDC4CFKFWEER2NNRUEYTJQOMZVIMBRLJJHUUSKKRCFKPI=
GrabCON{dayuum_s0n!}
base 64 -> base 32 -> base 64 -> base 32 -> base 64 -> base 32 -> base 64 -> base 32 -> base 64 -> base 32
Grabcon2021 Write-up
PWN
cancancan
풀고나서 바로 롸업을 안써서 어케 풀었는지 까먹었따..
아마 카나리 릭 하고 푸는 문제인듯
easybin
그냥 rtl문제
pwn2
스택의 주소를 릭하고, 스택에 쉘코드 넣은 후 ret에 쉘코드가 들어간 스택의 주소를 넣어주면 끝
MISC
유튜브의 설명창에 나오는 부분부분 플래그를 합치면됨
GrabCON{th3_qu1ck_br0wn_f0x_jumps_0v3r_th3_lazy_d0g}
REV
mukesh
파일을 열어보면 이러한 문자열이 나온다
위 문자열을 base 인코딩으로 요리조리 지지고볶으면 됨
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