The Red Menshen BPFDoor campaign (priority 0.482, flash priority) targets Linux-based telecom and enterprise infrastructure using a kernel-level eBPF implant invisible to standard userspace tools. Initial access vectors assessed by threat researchers include perimeter appliances from Ivanti, Cisco, Juniper Networks, Fortinet, VMware, Palo Alto Networks, and Apache Struts. No CVE is directly tied to this BPFDoor variant; organizations should audit all Linux hosts with bpftool, patch all listed perimeter appliance vendors against known CVEs, and deploy eBPF-aware runtime security (e.g., Falco, Tetragon) as a detection control.