VS Code Extension Verification Activity

This rule detects the execution of 'vsce-sign.exe' with command-line arguments indicating the verification of cached VS Code extensions. This activity is part of the normal VS Code extension installation and update process, where extensions are verified for integrity and authenticity. While this is a legitimate process, monitoring it can be useful for identifying anomalies or potential supply chain compromises if unexpected extensions are being verified or if the verification process itself is being abused.