Quad9 is a free and public security-foused DNS resolver located at 9.9.9.9 that blocks known malicious domains.
Quad9
0001-01-01
Recent Posts
Linux Persistence: Modular Software
2025-04-17 DFIR CTF persistence linux persistence apache asterisk
Linux Persistence: Web Shells
2025-04-16 DFIR persistence webshell linux persistence webshell apache nginx PHP
Linux Persistence: Rootkits
2025-04-15 DFIR persistence rootkit LKM linux persistence LKM rootkit LD_PRELOAD kprobe ftrace ld.so hooking
Defanging Linux LKM Rootkits With cleanup_module()
2025-04-05 Linux LKM rootkits EDR hooks incident response Linux LKM rootkit