CTF challenges & writeups

4044 challenges · browse all techniques

Challenge	CTF	Weight	Category	Has
no_strings #static-analysis	DownUnderCTF 2021	–	Reverse	files wu 2
mercy #clemency	HITCON 2021	–	Reverse	files wu 2
multidimensional #reverse-engineering	HSCTF 2021	–	Reverse	files src wu 3
scrambler #python-bytecode	HSCTF 2021	–	Reverse	files wu 2
sneks #python-bytecode	HSCTF 2021	–	Reverse	files wu 3
warmup-rev #function-inversion	HSCTF 2021	–	Reverse	files src wu 3
atareee #6502	Hack.lu 2021	94.48	Reverse	files wu 1
pycoin #python-bytecode	Hack.lu 2021	94.48	Reverse	files wu 1
EasyAssembly #static-analysis	HeroCTF 2021	35.17	Reverse	files wu 3
sELF_control #elf-manipulation	HeroCTF 2021	35.17	Reverse	files wu 1
Anti #anti-debugging	ICHSA 2021	–	Reverse	files wu 1
Super_Super_Mario #static-binary-patching	ICHSA 2021	–	Reverse	files wu 2
Abnormal #verilog-reversing	ImaginaryCTF 2021	–	Reverse	files wu 1
Foliage #prng-reconstruction	ImaginaryCTF 2021	–	Reverse	files wu 1
Its_Not_Pwn_I_Swear #overridden-stack-check	ImaginaryCTF 2021	–	Reverse	files wu 1
Jumprope #xor-keystream	ImaginaryCTF 2021	–	Reverse	files wu 2
Nesting_Snakes #pyinstaller-unpacking	ImaginaryCTF 2021	–	Reverse	files wu 1
No_Thoughts_Head_Empty #brainfuck	ImaginaryCTF 2021	–	Reverse	files wu 1
Normal #verilog-reversing	ImaginaryCTF 2021	–	Reverse	files wu 3
Roolang #esolang-reversing	ImaginaryCTF 2021	–	Reverse	files wu 1
Stings #substitution-cipher	ImaginaryCTF 2021	–	Reverse	files wu 3
Sakura #fuzzing	LINE 2021	–	Reverse	files wu 3
Far_From_The_Weakest_Shell #powershell-deobfuscation	MetaCTF 2021	–	Reverse	files wu 1
Getting_Darryl_Back #xor-decryption-reversing	MetaCTF 2021	–	Reverse	files wu 1
I_Hate_Python #fixed-seed-prng	MetaCTF 2021	–	Reverse	files wu 2
Revvy_Chevy #lcg-keystream	MetaCTF 2021	–	Reverse	files wu 1
There_Are_No_Strings_on_Me #strings-analysis	MetaCTF 2021	–	Reverse	files wu 3
Mini_Pokemon #pokemon-mini #emulator-debugging #s1c88	PlaidCTF 2021	99.64	Reverse	files wu 2
dr #regex-derivatives #dfa	PlaidCTF 2021	99.64	Reverse	files wu 1
Hi_Harmony #riscv #harmonyos #caesar-cipher	RCTF 2021	–	Reverse	files wu 1
LoongArch #loongarch #instruction-set-reversing	RCTF 2021	–	Reverse	files wu 1
Valgrind #vex-ir #valgrind #caesar-cipher	RCTF 2021	–	Reverse	files wu 1
dht #bruteforce #thread-race #search-pruning	RCTF 2021	–	Reverse	files wu 1
two_shortest #oob-index #free-pascal #got-overwrite	RCTF 2021	–	Reverse	files wu 1
Fleshwound #scratch #visual-programming	RITSEC 2021	–	Reverse	files wu 2
Memedrive #android #jadx #xor #base64	RITSEC 2021	–	Reverse	files wu 1
SamuraiInfection #dna-encoding #nucleotide	RITSEC 2021	–	Reverse	files wu 1
snek #pyc-decompile #uncompyle6	RITSEC 2021	–	Reverse	files wu 3
compilerhell #c-preprocessor #macro-metaprogramming	S4CTF 2021	24.52	Reverse	files wu 1
rediary #cpp-reversing #custom-cipher	S4CTF 2021	24.52	Reverse	files wu 1

Challenges