Linux Auditd Virtual Disk File And Directory Discovery

This analytic detects suspicious discovery of virtual disk files and directories on Linux systems. It specifically looks for command-line executions using `find` or `grep` that target common virtual disk file extensions such as `.vhd`, `.vhdx`, and `.vmdk`. This activity may indicate an attacker's attempt to locate and access virtualized storage environments, which could contain sensitive data or critical system configurations. Unauthorized discovery attempts could signify preparatory actions for data exfiltration or further compromise, enabling security teams to identify potential reconnaissance activities and respond promptly.