
Summary
The rule "Unsigned .node File Loaded" is designed to detect when unsigned .node files are loaded into trusted applications, particularly in an environment using Electron-based applications like Slack, Discord, or Visual Studio Code. .node files are native add-ons that can introduce arbitrary code execution if integrity checks are not enforced. This tactic has been leveraged by malware such as DripLoader, which exploits these unsigned files to inject malicious native code into trusted apps. The rule specifies conditions for detection, focusing on cases where a .node file ends with a particular extension, lacks a valid signature, or has its signature status marked as unavailable, while also considering exceptions for certain legitimate extensions often associated with Visual Studio Code. As with any detection rule, false positives may occur, particularly from legitimate tools using unsigned .node files, and these cases should be analyzed individually to ascertain their legitimacy.
Categories
- Endpoint
- Windows
- Application
Data Sources
- Image
Created: 2025-11-22