Brushaloader is more pervasive, stealthy and growing in popularity faster than ever before. Researchers say threat actors are increasingly turning to loader malware. The goal is to use the malware as a springboard to infect systems quietly in order to deliver more aggressive secondary-stage payloads. Despite requiring several user interactions, the actors were able to ensnare more than 4,000 computers in 36 hours in one two-day campaign. Researchers said the command-and-control (C2) and infection modus operandi is the same.
Source: https://threatpost.com/malware-brushaloader-more-menacing/146631/