This detection rule identifies the execution of commands and binaries initiated through the Program Compatibility Assistant, specifically the `pcalua.exe` binary. `pcalua.exe` can be exploited as a Living Off The Land Binary (LOLBIN), allowing malicious actors to execute unintended commands indirectly to circumvent application whitelisting mechanisms. This technique is significant in the context of evading security measures, highlighting the importance of monitoring process creation activities involving `pcalua.exe`. The detection logic targets specific command line parameters that suggest abuse of the compatibility assistance features, making it crucial for organizations to keep an eye on such execution patterns to thwart potential attacks. The rule is suited for environments utilizing Windows OS and relies on logs related to process creation. It is vital for administrators to understand the legitimate context for its use, which includes scenarios initiated by batch scripts or administrative actions, which can generate false positives.