Gamaredon VM/Sandbox Evasion Checks Spawned from HTA Downloader Chain

Detects execution of system discovery and evasion commands commonly used by the Gamaredon group's Ptero-family tooling. The rule monitors for mshta.exe, wscript.exe, or cscript.exe spawning wmic, powershell, or cmd to execute queries related to virtualization artifacts (e.g., VirtualBox, VMware) or time-based evasion (e.g., Start-Sleep).