PRB-Backdoor: MuddyWater's Multifaceted Malware Uncovered

This report investigates the PRB-Backdoor, a powerful and multifunctional piece of malware suspected to be associated with the MuddyWater group. The malware is deployed via a macro-enabled Word document, utilizing PowerShell scripts for execution. It employs obfuscation techniques to conceal its activities and communicates with a command and control server over HTTP. The backdoor has a plethora of functionalities, including keylogging, screen capturing, system information collection, and password theft. The backdoor seems to be new and unique, with no references found in any public source.