Security experts have discovered a PlugX sample that uses cunning techniques to infect associated portable USB media devices in order to spread the malware to more PCs. According to Palo Alto Networks Unit 42 researchers Mike Harbison and Jen Miller-Osborn, this variation is wormable and conceals itself from the Windows operating file system via infecting USB devices. “A user would not realize their USB stick is infected or maybe utilized to exfiltrate data out of their networks.” The cybersecurity business said it discovered the artifact during an incident response attempt following a Black Basta ransomware assault on an unknown victim. The Gootkit malware loader and the Brute Ratel C4 red team framework were among the additional tools found in the infected system.