An alternative call sign is a call sign not linked to a government or organization’s official call sign roster. These are used by radio operators, often illegally, for OPSEC, privacy, and anonymity purposes.
alternative callsign
2026-04-07
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