CTF challenges & writeups

4044 challenges · browse all techniques

Challenge	CTF	Weight	Category	Has
Resolver	HeroCTF 2022	51.22	Reverse	files wu 1
protector #self-modifying-code	KITCTFCTF 2022	–	Reverse	files wu 1
slots #glibc-rand-prediction	KITCTFCTF 2022	–	Reverse	files wu 1
babyshark	KnightCTF 2022	17.38	Reverse	files wu 2
flag_checker	KnightCTF 2022	17.38	Reverse	files wu 1
the_encoder	KnightCTF 2022	17.38	Reverse	files wu 3
Baby-rev #bruteforce-reversing	LakeCTF 2022 Quals	23.96	Reverse	files wu 2
covfefe	TAMUctf 2022	–	Reverse	files wu 1
existing-tooling	TAMUctf 2022	–	Reverse	files wu 2
labyrinth	TAMUctf 2022	–	Reverse	files wu 1
obsessive-checking	TAMUctf 2022	–	Reverse	files wu 1
redo1	TAMUctf 2022	–	Reverse	files wu 1
redo3	TAMUctf 2022	–	Reverse	files wu 2
block-game	TJCTF 2022	–	Reverse	files wu 1
crackme-pls	TetCTF 2022	36.72	Reverse	files wu 1
hidden	TetCTF 2022	36.72	Reverse	files wu 1
magicbox	TetCTF 2022	36.72	Reverse	files wu 1
BetGame	VishwaCTF 2022	20.79	Reverse	files wu 1
Ware #upx-unpacking #reverse-engineering	0x41414141 2021	–	Reverse	files wu 2
cliBrowser #golang-reverse-engineering	0x41414141 2021	–	Reverse	files wu 1
hash #upx-unpacking #golang-reversing	0x41414141 2021	–	Reverse	files wu 2
x-and-or #xor-decrypted-self-modifying-code #mmap	0x41414141 2021	–	Reverse	files wu 3
Crackme #custom-vm-reversing #bytecode-interpreter	3kCTF 2021	24.14	Reverse	files wu 1
Layers #llvm-obfuscation #control-flow-flattening	3kCTF 2021	24.14	Reverse	files wu 1
Monstrosity	ALLES 2021	–	Reverse	files wu 1
Crina	ASIS 2021 Finals	89.22	Reverse	files wu 2
beanstalk	ASIS 2021 Quals	89.22	Reverse	files wu 2
Trailblazer	BCACTF 2021	–	Reverse	files wu 1
ChargeTracker #android-apk-reversing	BSidesSF 2021	23.94	Reverse	files wu 3
its_just_an_xor #ptrace-anti-debug #xor	Block 2021	30.75	Reverse	files wu 1
Magical_Mystery_Club #z3-solver #constraint-solving	COMPFEST 2021	–	Reverse	files wu 1
Pave_The_Way #java-jar-reversing #decompilation	COMPFEST 2021	–	Reverse	files wu 1
Paired #windows-reversing #ipc-postmessage #inter-process-code-injection #xor	CyBRICS 2021	33.32	Reverse	files wu 1
Walker #reversing #maze-traversal #xor-decode #state-machine	CyBRICS 2021	33.32	Reverse	files wu 1
Bell #reversing #algorithm-replication #interactive	DCTF 2021	–	Reverse	files wu 3
Hansel_und_Gretel #reversing #bit-extraction #bit-position-table	DCTF 2021	–	Reverse	files wu 1
Hercules #reversing #z3 #constraint-solving #matrix	DCTF 2021	–	Reverse	files wu 1
Just_In_Time #reversing #dynamic-analysis #breakpoint-flag-extraction	DCTF 2021	–	Reverse	files wu 3
Tiny_interpreter #reversing #custom-interpreter #bytecode	DCTF 2021	–	Reverse	files wu 2
Unlimited_Power #file-format-analysis #garmin-fit #fit2csv	DCTF 2021	–	Reverse	files wu 1

Challenges