Long time no see Vegas and DEFCON :).

Also glad to see you again @st98_ @ptrYudai .I hope you enjoy the trip in Korea.

Got 3rd place in Codegate CTF 2022 general div. with @okascmy1 @yechan_bae @gPayl0ad.It was an unexpected result for me!

RT @enisa_eu: #ICC_games second place and silver medal:. 🥈 Team Asia @acsc_asia . Award presented by #ENISA ED @Le_Passar . Congratulations….

RT @Claire_Lee: PV = nRT.

Is there anyone who succeed to build v8 using AFL++?.

@rkm0959 * This contest will restrict the participants to be Korean citizen.

2021 화이트햇 콘테스트 팀원 구인합니다. 현재 저(pwn, rev), @rkm0959 (crypto) 2명 모여있습니다. web �� 분야인 분과 pwn, rev가 주 분야인 분 모집합니다. 관심있으신 분은 DM 주세요.

This year DEFCON CTF:.1. Play Zero is you.2. Find a bug in barb-metal which seems not exploitable.3. Reverse & understand ooows-p92021 when it got closed.

Oh this is so sad. Their CTF is one of well-organized and interesting CTFs in my opinion. Hope they hold it next year.

Used almost same payload layout with the official solution , but failed to build short decoder logic :(.

Solved CPP and then fell into 4A shellcode trap. .

I joined @SuperGuesser from redpwnCTF 2021.Solved simultaneity, image-identifier, rp2sm.

I just notice that it can be done w/o arbitrary allocation since I can overwrite ofl_head. After that the remain work is just to make fake FILE* chain on the controllable heap.

*then get chunk on stdin and do FSOP.

what?? is there a function pointer that is called in libc bss?(or data)?.i used same primitives to overwrite __malloc_reloaded and __malloc_context.active to get arbitrary arbitrary chunk from calloc.

Solved mra and mooosl in K-Students.There were lots of hard problems and I wa noob.

Participated in zer0pts CTF 2021 as K-Students(KaisHack GoN x PLUS x CyKor) and ranked 2nd!.Solved OneShot, nasm kit, signme, and Not beginners rev. Many thanks to zer0pts and my teammates.

RT @JusticeRage: When debugging DLLs, I often need to go back and forth between @x64dbg and IDA. So far, here is the quickest way I have fo….