System Information Discovery Using Ioreg on macOS
This rule detects the use of the `ioreg` command-line utility on macOS, which is used to display I/O Kit registry information. Adversaries often use `ioreg` for system information discovery, particularly to identify virtualization environments (e.g., VirtualBox, VMware, Parallels) or other system details like serial numbers or USB device information. The rule specifically looks for executions of `ioreg` combined with common arguments and keywords used for such discovery, either directly or through shell commands involving `grep`.
Sigma
