CTF challenges & writeups

751 challenges in family ⊕ rev ✕ clear · browse all techniques

Challenge	CTF	Weight	Category	Has
Sakura #angr #symbolic-execution	HITCON 2017 Quals	69.38	Reverse	files wu 1
Java is the Best #java-decompilation	angstromCTF 2016	–	Reverse	files src wu 1
Boring_APK #android-native-reversing #meet-in-the-middle (mitm)	BKISC 2026	–	Reverse	files wu 1
A_Star_Trail_1 #dijkstra #graph	CSS 2026	–	Misc	files wu 1
The_Astrolobe_Overwrite #self-modifying-code #custom-vm	CSS 2026	–	Misc	files wu 1
prince_walk #custom-vm #obfuscation	CSS 2026	–	Reverse	files wu 1
Kelpie #custom-vm #openssl	Cryovault 2026 Quals	25.00	Reverse	files wu 1
moraine #crc-collision #adler32 #deduplication	Cryovault 2026 Quals	25.00	Web	files wu 1
thaw_ladder #custom-vm #signedness-bug #oob-write	Cryovault 2026 Quals	25.00	Pwn	files wu 1
Automaton #wasm #reversible-transformations #custom-vm	Haruulzangi 2026 Quals	–	Reverse	files wu 1
Furnace #java-reversing #jni #minecraft-mod	Haruulzangi 2026 Quals	–	Reverse	files wu 1
Made_In_Mongolia #jit-bug #type-confusion #waf-bypass	Haruulzangi 2026 Quals	–	Pwn	files wu 1
Snaking_Revenge #pyjnius #type-confusion #jni	SAS 2026 Quals	31.00	Pwn	files wu 1
House_XIII #heap-exploitation #type-confusion #use-after-free (uaf)#custom-vm	Z0d1ak 2026 Quals	25.00	Pwn	files wu 1
Salvage_Protocol #request-smuggling #length-mismatch #custom-vm	Z0d1ak 2026 Quals	25.00	Pwn	files wu 1
stars_below #plt-relocation-trap #custom-vm #base32	Z0d1ak 2026 Quals	25.00	Reverse	files wu 1
Cryptografie #java-reflection #filesystempreferences-encoding	plfanzen 2026	25.00	Crypto	files wu 1
Slim_Shady #malware-analysis #resource-extraction #xor #process-injection	Null 2025	–	Misc	files wu 1
wordleOS #boot-sector #rust-reversing #vga-buffer	Null 2025	–	Reverse	files wu 1
Bubble_Tea_Diaries #stored-xss #bbcode-parser #html-escape-bypass #jwt	SAS 2025 Quals	20.72	Web	files wu 1
Trust_Issues #op-tee #trustlet #brainfuck-interpreter #oob-read	SAS 2025 Quals	20.72	Pwn	files wu 1
PPC64LEL #reversing #powerpc	ToH 2025	24.27	Reverse	files wu 1
Bytecode #fsop #bytecode-interpreter	Akasec 2024	23.15	Pwn	files wu 1
Orgalorg #backdoor	Akasec 2024	23.15	Reverse	files wu 1
saveme #vba-macro #docm	Akasec 2024	23.15	Forensics	files wu 1
maybe_Checker #z3 #decompilation	BlueWater 2024	82.00	Reverse	files wu 1
Embryobot #elf-patching #shellcode	BraekerCTF 2024	24.72	Reverse	files wu 1
The_mainframe_speaks #rexx-reversing	BraekerCTF 2024	24.72	Reverse	files wu 1
D.I.S.A. #custom-vm #range-check-bypass #oob-write	BuckeyeCTF 2024	50.91	Pwn	files wu 1
Fiilllleeeeeeee #ransomware #ad1-image #pyinstaller #sdelete	CrewCTF 2024	26.89	Forensics	files wu 1
Hack_the_Planet #jsfuck #javascript-deobfuscation	CrewCTF 2024	26.89	Reverse	files wu 1
Malkonkordo #rust #command-injection #markdown	CrewCTF 2024	26.89	Web	files wu 1
Root_Oracle #permutation-recovery #quadratic-roots-oracle	CrewCTF 2024	26.89	Misc	files wu 1
flagprinter #reversing #base3-digit-sum #xor-keystream	CyberSpace 2024	24.83	Crypto	files wu 2
VMM #custom-vm #unpacking	Cybercoliseum 2024	20.95	Reverse	files wu 1
libprce3 #backdoor #pcre	DEFCON 2024 Quals	77.38	Pwn	files wu 1
Symmetry_1 #spn-cipher-inversion	KalmarCTF 2024	24.21	Reverse	files wu 1
beautiful_song #fft #audio-forensics	Pearl 2024	23.95	Forensics	files wu 1
rusty_proxy #rust #xor	Pearl 2024	23.95	Reverse	files wu 1
LookDown #android #intent-deserialization #blacklist-bypass	TCP1P 2024	89.85	Mobile	files wu 1

Challenges