- LetsDefend - https://letsdefend.io
- TryHackMe - https://tryhackme.com
- HackTheBox Sherlocks - https://hackthebox.com/blog/htb-sherlocks-dedicated-labs
- BlueTeamLabs - https://blueteamlabs.online
- The Art of Malware Analysis - https://courses.null-char.com/courses/the-art-of-malware-analysis
- Zero2Auto Malware Analysis - https://courses.zero2auto.com/
- Introduction to Malware Binary Triage - https://training.invokere.com/course/imbt
- How DNS Works - https://www.nslookup.io/dns-course
- Cybrary - https://cybrary.it