CARDINALCardinal

Cardinal is a remote access trojan (RAT) discovered by Palo Alto Networks in 2017 and has been active for over two years. It is delivered via a downloader, known as Carp, and uses malicious macros in Microsoft Excel documents to compile embedded C# programming language source code into an executable that runs and deploys the Cardinal RAT. The malicious Excel files use different tactics to get the victims to execute it.