$ ctf42

Challenges

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

Challenge CTF Weight Category Has
Free_Delivery
#android#apk-reversing#jadx
 UMassCTF 2024 43.10 Reverse files wu 1
Primitive_Reversing UMassCTF 2024 43.10 Reverse files wu 2
Primitive_Reversing_2 UMassCTF 2024 43.10 Reverse files wu 1
chains UMassCTF 2021 23.56 Reverse files wu 3
easteregg UMassCTF 2021 23.56 Reverse files wu 2
Batcave_Bitflips UMassCTF 2026 65.95 Reverse files
Lego_Clicker UMassCTF 2026 65.95 Reverse files
Bullet_Dodge UMassCTF 2025 48.38 Reverse files
Conundrum UMassCTF 2025 48.38 Reverse files
the_void UMassCTF 2025 48.38 Reverse files
vecwhymm UMassCTF 2025 48.38 Reverse files
Aspartame UMassCTF 2024 43.10 Reverse files
Fructose UMassCTF 2024 43.10 Reverse files
Magic_Conch UMassCTF 2024 43.10 Reverse files
Maltodextrin UMassCTF 2024 43.10 Reverse files
babyvm UMassCTF 2022 23.56 Reverse files
optimal_vm UMassCTF 2022 23.56 Reverse files
babushka UMassCTF 2021 23.56 Reverse files
lambda UMassCTF 2021 23.56 Reverse files
scarymaze UMassCTF 2021 23.56 Reverse files