SilverFox – Executable Running from Suspicious APPDATA Update Path
This rule detects executable files (ending in .exe) executing from a specific subdirectory within the user's AppData path (\AppData\Microsoft\Update\). This path is often used by adversaries to masquerade malicious activity or persistence mechanisms as legitimate update processes. The rule excludes common system service accounts (SYSTEM, LOCAL SERVICE, NETWORK SERVICE) to reduce noise, focusing on processes initiated by user-level accounts.
Microsoft Sentinel (KQL)
