Explorer File Visibility Downgrade
Detects modifications to Windows Explorer registry keys (Hidden, ShowSuperHidden, HideFileExt) to conceal files. This technique is often used by malware, such as GammaWorm, as a defense evasion mechanism to hide malicious artifacts from users and security tools. The rule specifically looks for changes to the 'Advanced' registry key path within 'Software\Microsoft\Windows\CurrentVersion\Explorer' that would result in files or file extensions being hidden.
Cortex XDR
