Medium
French entitites have become a target for a new backdoor called “Serpent.” The backdoor uses Chocolatey package installer to deliver the backdoor. The threat actors have constructed a GDPR (European Union’s General Data Protection Regulations) themed lure. Once the macros are enabled, they are executed, and reach out to an image URL. A hidden PowerShell script on the image URL then downloads, installs, and update the package installer. Chocolatey is then used to install python and python packages.
The “Swiper” image which is encoded with the PowerShell scripts used to download and install Chocolatey and Python and fetch another steganographic image.