$ ctf42

Challenges

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

Challenge CTF Weight Category Has
decompile_me
#rc4#reversing#keystream
 zer0pts 2023 52.62 Reverse files wu 1
fvm
#vm-reversing#bytecode#x87-fpu
 zer0pts 2023 52.62 Reverse files wu 1
mimikyu
#reversing#custom-loader#modular-exponentiation#gmp
 zer0pts 2023 52.62 Reverse files wu 1
topology
#reversing#multiprocessing#ipc
 zer0pts 2023 52.62 Reverse files wu 1
q-solved
#quantum-computing#qiskit#grovers-algorithm
 zer0pts 2022 35.97 Reverse files wu 1
service
#windows-reversing#cryptoapi#aes
 zer0pts 2022 35.97 Reverse files wu 1
infected
#ld-preload#function-hooking#backdoor
 zer0pts 2021 24.56 Reverse files wu 3
syscall_777
#reversing#custom-syscall#xor
 zer0pts 2021 24.56 Reverse files wu 1
chirashi-sushi zer0pts 2022 35.97 Reverse files
dreamland zer0pts 2022 35.97 Reverse files
flag-checker zer0pts 2022 35.97 Reverse files
Subleq64 zer0pts 2021 24.56 Reverse files
SuperSecretLogin zer0pts 2021 24.56 Reverse files
not_beginners_rev zer0pts 2021 24.56 Reverse files
spotlight zer0pts 2021 24.56 Reverse files