The U.S. government is warning of new malware, dubbed Drovorub, that targets Linux systems. It also claims the malware was developed for a Russian military unit in order to carry out cyber-espionage operations. The malware is sophisticated and is designed for stealth, leveraging advanced rootkit technologies that make detection difficult. The FBI and NSA did not detail how the initial attack vector for the malware occurs. The report does not specify how long the malware has been in action, or how many companies have been targeted.
Source: https://threatpost.com/nsa-fbi-warn-of-linux-malware-used-in-espionage-attacks/158351/