$ ctf42

Challenges

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Higher weight ≈ harder, more prestigious event.
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33 challenges · browse all techniques

Challenge CTF Weight Category Has
DragonPit
#symbolic-execution#strcmp
 UMDCTF 2022 – Reverse files wu 1
Painting_Windows
#anti-debugging#xor#windows-reversing
 UMDCTF 2021 – Reverse files wu 1
Starbucks
#java-reversing#decompilation
 UMDCTF 2021 – Reverse files wu 2
nuclear_codes UMDCTF 2026 – Reverse files wu 1
gnalekcip UMDCTF 2026 – Reverse files
oracle UMDCTF 2026 – Reverse files
rainbet UMDCTF 2026 – Reverse files
roulette UMDCTF 2026 – Reverse files
the_akari UMDCTF 2026 – Reverse files
Flavors UMDCTF 2024 – Reverse files
Typecheck UMDCTF 2024 – Reverse files
cmsc430 UMDCTF 2024 – Reverse files
reality UMDCTF 2024 – Reverse files
realitys_revenge UMDCTF 2024 – Reverse files
travel_the_dunes..._with_OCaml UMDCTF 2024 – Reverse files
undecidable UMDCTF 2024 – Reverse files
but_like_when UMDCTF 2023 – Reverse files
cleffas_surprise UMDCTF 2023 – Reverse files
counter-strike_global_offensive_aimbot UMDCTF 2023 – Reverse files
introduction_to_c UMDCTF 2023 – Reverse files
playtime UMDCTF 2023 – Reverse files
welcome_to_python UMDCTF 2023 – Reverse files
well-connected UMDCTF 2023 – Reverse files
BMP_X_LoveLetter UMDCTF 2022 – Reverse files
Go_away UMDCTF 2022 – Reverse files
Trainfuck UMDCTF 2022 – Reverse files
pitrojan UMDCTF 2022 – Reverse files
tiny UMDCTF 2022 – Reverse files
FeistyCrypt UMDCTF 2021 – Reverse files
UMD-FS-RPI UMDCTF 2021 – Reverse files
Wake_Me_Up_Before_I_Go_Go UMDCTF 2021 – Reverse files
What_is_Memory UMDCTF 2021 – Reverse files
Willow-RPI UMDCTF 2021 – Reverse files