$ ctf42

Challenges

Category
Difficulty
CTFtime weight
–
Higher weight ≈ harder, more prestigious event.
Year
–
Must have
Reset

55 challenges · browse all techniques

Challenge CTF Weight Category Has
Rust
#per-byte-bruteforce
 ImaginaryCTF 2024 49.81 Reverse files wu 1
unoriginal
#xor-cipher
 ImaginaryCTF 2024 49.81 Reverse files wu 1
Sheepish
#lambda-calculus
 ImaginaryCTF 2023 34.52 Reverse files src wu 1
desrever
#rot13
 ImaginaryCTF 2022 24.65 Reverse files wu 1
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
filling-blanks ImaginaryCTF 2021 – Reverse files wu 1
Absolute_Flag_Checker ImaginaryCTF 2024 49.81 Reverse files
BF ImaginaryCTF 2024 49.81 Reverse files src
Oh_a_Camel ImaginaryCTF 2024 49.81 Reverse files
SVM_Revenge ImaginaryCTF 2024 49.81 Reverse files
printf ImaginaryCTF 2024 49.81 Reverse files
unconditional ImaginaryCTF 2024 49.81 Reverse files
vokram ImaginaryCTF 2024 49.81 Reverse files src
watchdog ImaginaryCTF 2024 49.81 Reverse files
Goated ImaginaryCTF 2023 34.52 Reverse files
Typechecker ImaginaryCTF 2023 34.52 Reverse files
Unfactored ImaginaryCTF 2023 34.52 Reverse files
chaos ImaginaryCTF 2023 34.52 Reverse files src
scrambled ImaginaryCTF 2023 34.52 Reverse files src
snailchecker ImaginaryCTF 2023 34.52 Reverse files src
vmcastle ImaginaryCTF 2023 34.52 Reverse files
Jormungandr ImaginaryCTF 2022 24.65 Reverse files
OneLinerRevenge ImaginaryCTF 2022 24.65 Reverse files
TheHouseAlwaysWins ImaginaryCTF 2022 24.65 Reverse files
hidden ImaginaryCTF 2022 24.65 Reverse files
polymorphic ImaginaryCTF 2022 24.65 Reverse files
wired ImaginaryCTF 2022 24.65 Reverse files
xobeert ImaginaryCTF 2022 24.65 Reverse files
An_ICICLE_to_Remember ImaginaryCTF 2021 – Reverse files
Arabica ImaginaryCTF 2021 – Reverse files
Ask_Hell ImaginaryCTF 2021 – Reverse files
Ay_Yi_Yi ImaginaryCTF 2021 – Reverse files