"RustDoor: New macOS Backdoor Linked to Ransomware Groups"

A new Rust-based backdoor named RustDoor has been discovered targeting Apple macOS devices since November 2023, impersonating an update for Microsoft Visual Studio and capable of targeting both Intel and Arm architectures. The malware comes with various commands to gather and upload files, harvest information, and exfiltrate data to a command-and-control server, with connections to ransomware families like Black Basta and BlackCat. The U.S. government recently took down the BlackCat ransomware operation and released a decryption tool for affected victims.