PHP Web Server Rootkit Targets F5 BIG-IP Devices Malware PHP Web Server Rootkit Targets F5 BIG-IP Devices Do Son September 7, 2026 0 At a Glance Malware family Poisoned Refresh (Linux rootkit implant) Threat actor Unconfirmed (tracked by F5 as... Read More Read more about PHP Web Server Rootkit Targets F5 BIG-IP Devices