$ ctf42

Challenges

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

Challenge CTF Weight Category Has
Cereal_Killer_01
#reversing#ghidra#stack-string-decode#debugger-patch
 DEADFACE 2023 – Reverse files wu 2
Cereal_Killer_02
#reversing#xor-rotating-key#known-plaintext
 DEADFACE 2023 – Reverse files wu 2
Cereal_Killer_04
#java-reversing#jar-decompilation#procyon
 DEADFACE 2023 – Reverse files wu 1
Cereal_Killer_05
#reversing#gdb#memory-search
 DEADFACE 2023 – Reverse files wu 2
My_Daily_Macros
#vba-macro-analysis#xlsm#office-document
 DEADFACE 2023 – Reverse files wu 1
Cereal_Killer_01 DEADFACE 2026 – Reverse files
Cereal_Killer_02 DEADFACE 2026 – Reverse files
Cereal_Killer_03 DEADFACE 2026 – Reverse files
It_But_A_Wee_Bit_Reverse DEADFACE 2026 – Reverse files
Cereal_Killer_01 DEADFACE 2025 – Reverse files
Cereal_Killer_02 DEADFACE 2025 – Reverse files
Cereal_Killer_03 DEADFACE 2025 – Reverse files
Cereal_Killer_04 DEADFACE 2025 – Reverse files
Cereal_Killer_05 DEADFACE 2025 – Reverse files
Risky_Experiments DEADFACE 2025 – Reverse files
Cereal_Killer_03 DEADFACE 2023 – Reverse files
Cereal_Killer_06 DEADFACE 2023 – Reverse files
STARvin_for_Secrets_1_Lindseys_Lyrics DEADFACE 2023 – Reverse files