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New BgInfo.EXE Custom WMI Query Registry Configuration

Sigma Rules

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Summary
This rule detects the creation of a specific registry value associated with the BgInfo application, a tool used to display system information on the desktop. The focus is on modifications to the registry path \Software\Winternals\BGInfo\UserFields\, which are indicative of attempts to execute custom WMI queries using BgInfo.exe. By monitoring for registry 'SetValue' events with values that start with '6', the rule aims to identify potential misuse of this application for evading defenses or executing unauthorized scripts. This detection is crucial as attackers may leverage legitimate tools like BgInfo for malicious purposes, thereby bypassing security controls. The rule is relevant in environments where BgInfo is used legitimately but requires close monitoring to prevent exploitation.
Categories
  • Windows
  • Endpoint
Data Sources
  • Windows Registry
Created: 2023-08-16