WatchBog is a Linux-based cryptocurrency mining malware botnet, which now also includes a module to scan the Internet for Windows RDP servers vulnerable to the BlueKeep flaw. BlueKeep is a highly-critical, wormable, remote code execution vulnerability in the Windows Remote Desktop Services that could allow an unauthenticated remote attacker to take full control over vulnerable systems just by sending specially crafted requests over the RDP protocol. The new malware variant has already compromised more than 4,500 Linux machines in the last two months.
Source: https://thehackernews.com/2019/07/linux-malware-windows-bluekeep.html

