$ ctf42

Challenges

Category
Difficulty
CTFtime weight
–
Higher weight ≈ harder, more prestigious event.
Year
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Must have
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4044 challenges · browse all techniques

Challenge CTF Weight Category Has
Prime_Extravaganza UIUCTF 2021 – Reverse files wu 1
Tedious UIUCTF 2021 – Reverse files wu 3
signals UIUCTF 2021 – Reverse files wu 3
chains UMassCTF 2021 23.56 Reverse files wu 3
easteregg UMassCTF 2021 23.56 Reverse files wu 2
PeebPoob UTCTF 2021 – Reverse files wu 3
antistatic
#anti-debugging#crackme
 Union 2021 24.34 Reverse files wu 1
unionware
#powershell-deobfuscation#ransomware
 Union 2021 24.34 Reverse files wu 2
JS_is_Awesome
#javascript-deobfuscation#xor
 VULNCON 2021 – Reverse files wu 1
Famous_Pin
#static-analysis
 eHaCON 2021 – Reverse files wu 3
Seeking_the_flag
#static-analysis
 eHaCON 2021 – Reverse files wu 3
hxp3drm hxp 2021 99.41 Reverse files wu 1
RetroZeit
#m68k
 Dragon 2020 98.00 Reverse files wu 1
you_wa_shockwave PlaidCTF 2020 93.15 Reverse files wu 3
B1ll_Gat35 picoCTF 2019 – Reverse files wu 2
NeedForSpeed picoCTF 2019 – Reverse files wu 2
Acre_Registry 0xV01D 2026 19.48 Reverse files
Afterimage_Protocol 0xV01D 2026 V2 19.48 Reverse files
ChronoCore 0xV01D 2026 V2 19.48 Reverse files
Lisan_Switchboard 0xV01D 2026 19.48 Reverse files
Misk_Automaton 0xV01D 2026 19.48 Reverse files
Sable_Keys 0xV01D 2026 19.48 Reverse files
TURINGS_CURSE 0xV01D 2026 V2 19.48 Reverse files
ASIS_Arch ASIS 2026 Quals 90.53 Reverse files
Atarude ASIS 2026 Quals 90.53 Reverse files
Beyond_the_fourth_wall ASIS 2026 Quals 90.53 Reverse files
Collector ASIS 2026 Quals 90.53 Reverse files
Ham_Fisted ASIS 2026 Quals 90.53 Reverse files
LeakMeAk ASIS 2026 Quals 90.53 Reverse files
Lesh ASIS 2026 Quals 90.53 Reverse files
Mousa ASIS 2026 Quals 90.53 Reverse files
NEON ASIS 2026 Quals 90.53 Reverse files
A_Golden_Experience ApoorvCTF 2026 24.10 Reverse files
A_Golden_Experience_Requiem ApoorvCTF 2026 24.10 Reverse files
Draw_Me ApoorvCTF 2026 24.10 Reverse files
Forges_......._well_forge ApoorvCTF 2026 24.10 Reverse files
Broken_Printer BDSec 2026 15.62 Reverse files
Cold_Start BDSec 2026 15.62 Reverse files
Crack_Me_Vault BDSec 2026 15.62 Reverse files
Four_Registers BDSec 2026 15.62 Reverse files