Skip to content
Research reports

Check Point · Published 10 Dec

Cracking ValleyRAT: From Builder Secrets to Kernel Rootkits

By shlomoo@checkpoint.com

Excerpt

Check Point Research (CPR) presents a full dissection of the widely used ValleyRAT backdoor, also known as Winos/Winos4.0, covering its modular architecture and plugin system.

By analyzing the publicly leaked builder and development structure (Visual Studio solutions and project files, without source code), we were able to accurately correlate artifacts and reverse engineer the functionality of all “main” plugins. The analysis reveals the advanced skills of the developers behind ValleyRAT, demonstrating deep knowledge of Windows ke…

The opening of the report, shown for reference. The full report, with its figures and indicators, is published by Check Point on research.checkpoint.com.

Mentioned in the excerpt1

More from Check Point94

All 95 reports

On the same topics

Report pages show the excerpt, publisher and topics, then link out. CyberSIXT does not republish report bodies.

Updated AboutDevelopersSign in