A Few Resources For KOTH.

• Discord (KOTH challenges, tournaments and more)
• KOTH GURU (a companion app for KOTH)
• Cash in your F11snipe flags here
• Busybox static binaries
• KOTH kernels
• Building out a Linux rootkit
• Diamorphine
• Video Tutorials
• Ascii Rickroll

CTF Resources.

• CTF Playbook
• CTF Field Guide
• Cipher Identifier

Other cool stuff

• OSCP HTB Prep
• Pwn College
• OverTheWire Wargames
• OFFSEC Tools