All news with #symbiote tag

New eBPF Filters in Symbiote and BPFDoor Malware Variants

🛡️ FortiGuard Labs reports new Linux-focused eBPF malware updates in 2025, including 151 new BPFDoor samples and three new Symbiote samples. Both families abuse eBPF to install kernel-level packet filters that enable stealthy C2 channels; Symbiote is using UDP port-hopping across high ports while BPFDoor has added IPv6 and DNS-based filtering. Detection is difficult but Fortinet provides AV and IPS protections.