Windows Processes with Suspicious Parent Directory
This rule detects suspicious parent processes for a set of well-known Windows system processes. It specifically looks for instances where `svchost.exe`, `taskhost.exe`, `lsm.exe`, `lsass.exe`, `services.exe`, `lsaiso.exe`, `csrss.exe`, `wininit.exe`, or `winlogon.exe` are spawned by a parent process that is not typically expected. The rule filters out legitimate parent processes such as those from security products (e.g., `SavService.exe`, `MsMpEng.exe`), common system directories (`System32`, `SysWOW64`), and cases where the parent process is null or empty.
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