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Gradebook | HackNow
All CTF challenges
Reading Mode
Hard
Binary Exploitation / Pwn
Gradebook
26 Apr 2026
Points
+400
Statistics
1
Solutions
400
Points
Author
Neo Yamaguchi
First Blood
matrix_mx
24 Jul 2026
Description
lock
UZ only
TCP Lab
This challenge is a
TCP Lab
type. To solve it, you'll need the
nc
command in your terminal.
Launch TCP lab
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