TAP Installer Execution
This rule detects the execution of 'tapinstall.exe', which is used to install TAP (Tunnel Adapter) drivers. While legitimate for VPN software like OpenVPN, Avast SecureLine VPN, and ProtonVPN, its execution outside of these known contexts could indicate an adversary preparing for data exfiltration using tunneling techniques. TAP drivers create virtual network interfaces, which can be leveraged to establish covert communication channels or bypass network segmentation.
Sigma
