$ ctf42

Challenges

Category
Difficulty
CTFtime weight
–
Higher weight ≈ harder, more prestigious event.
Year
–
Must have
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4044 challenges · browse all techniques

Challenge CTF Weight Category Has
Cryptex DaVinciCTF 2021 24.50 Reverse files wu 1
seed DamCTF 2021 24.43 Reverse files wu 3
connect_the_dots DownUnderCTF 2021 – Reverse files wu 1
Easy_NFT
#nftables
 Dragon 2021 99.33 Reverse files wu 1
Run_of_the_Mill
#angr
 Dragon 2021 99.33 Reverse files wu 2
Omen
#z3
 FwordCTF 2021 24.42 Reverse files wu 1
Saw
#static-analysis
 FwordCTF 2021 24.42 Reverse files wu 1
Time_Machine
#brute-force
 FwordCTF 2021 24.42 Reverse files wu 1
BF_means_best_friend_right
#brainfuck
 HackPack 2021 24.31 Reverse files wu 3
Exhell
#xlsx
 HackPack 2021 24.31 Reverse files wu 3
Function_Pointer_Fun
#z3
 HackPack 2021 24.31 Reverse files wu 3
GaussBot
#self-modifying-code
 HackPack 2021 24.31 Reverse files wu 1
Sanity
#xor-cipher
 IJCTF 2021 – Reverse files wu 2
filling-blanks ImaginaryCTF 2021 – Reverse files wu 1
Miz
#maze-solving
 InCTF 2021 70.41 Reverse files wu 1
find_plut0
#z3-solver
 InCTF 2021 70.41 Reverse files wu 1
1337RFCs
#polyglot-file
 Intent 2021 19.97 Reverse files wu 2
Scadomware
#predictable-key
 Intent 2021 19.97 Reverse files wu 3
Lightningrod
#stateful-xor-cipher
 K3RN3LCTF 2021 24.37 Reverse files wu 1
Rasm
#custom-vm-reversing
 K3RN3LCTF 2021 24.37 Reverse files wu 1
Recurso
#custom-vm-reversing
 K3RN3LCTF 2021 24.37 Reverse files wu 1
Zabomb
#zip-bomb
 K3RN3LCTF 2021 24.37 Reverse files wu 2
Credits
#spi-logic-analyzer
 MetaRed 2021 – Reverse files wu 1
Thief
#nuitka-binary-reversing
 MetaRed 2021 – Reverse files wu 1
flagsaver
#dotnet-reversing#image-unscramble
 OMH 2021 – Reverse files wu 2
grub
#grub-cfg#regex-constraints#z3
 OMH 2021 – Reverse files wu 2
polymer
#strings
 PBjar 2021 23.18 Reverse files wu 2
tour
#traveling-salesman#floyd-warshall#dynamic-programming
 PBjar 2021 23.18 Reverse files wu 1
highest_power
#jit-vm#arm-reversing#bruteforce
 Pwn2Win 2021 83.41 Reverse files wu 1
Dotty
#morse-code#strings
 RaRCTF 2021 24.53 Reverse files wu 2
RaRPG
#binary-patching
 RaRCTF 2021 24.53 Reverse files wu 3
infinite-free-trial
#crc8#bruteforce#keygen
 RaRCTF 2021 24.53 Reverse files wu 3
optimizeme
#rust-reversing#bignum-arithmetic
 RaRCTF 2021 24.53 Reverse files wu 1
warmwelcome S4CTF 2021 24.52 Reverse files wu 1
MargaREt Shakti 2021 25.00 Reverse files wu 1
Useless_VM SunshineCTF 2021 23.34 Reverse files wu 1
Acrylic TAMUctf 2021 – Reverse files wu 3
Crack_House TMUCTF 2021 – Reverse files wu 1
Flag_Printer TMUCTF 2021 – Reverse files wu 1
HackerManifesto Tenable 2021 22.37 Reverse files wu 3