New macOS XCSSET Variant Targets Firefox with Clipper and Persistence Module

Cybersecurity researchers have discovered an updated version of a known Apple macOS malware called XCSSET that has been observed in limited attacks.
« This new variant of XCSSET brings key changes related to browser targeting, clipboard hijacking, and persistence mechanisms, » the Microsoft Threat Intelligence team said in a Thursday report.
« It employs sophisticated encryption and obfuscation