Hypervisor Detection Check in Malware Payload

Darshan Thummar@Mighty

•updated Jun 12, 2026•0•0•2

This rule detects network traffic (specifically HTTP responses) that contains strings indicative of malware attempting to detect the presence of a hypervisor. It looks for the string "GetSystemFirmwareTable" and "VBOX" (case-insensitive) within the file data of the HTTP response. This combination suggests a malware payload checking if it's running in a virtualized environment, specifically VirtualBox, which is a common anti-analysis technique.