No Widgets found in the Sidebar
New ‘malware’ found in MacOS that steals files by pretending to be a Visual Studio update

A new threat has emerged in the cybersecurity landscape as researchers from Bitdefender have identified a malware targeting MacOS users. The backdoor, named Trojan.MAC.RustDoor, is written in Rust, a relatively new programming language that is becoming increasingly popular among cybercriminals due to its ability to evade detection and analysis.

This malware poses as an update to Microsoft Visual Studio Code but is actually used to steal files from users’ computers. It can be used to steal specific files or file types and then archive and upload them to a command and control center (C&C) so that malicious actors can access them. This campaign has been active since at least November of last year, with the malware running undetected for at least three months.

To distribute itself, the malware spoofs an update to Microsoft’s Visual Studio program and uses names like ‘VisualStudioUpdater’, ‘DO_NOT_RUN_ChromeUpdates’, or ‘zshrc2’. Additionally, the ‘malware’ runs on multiple types of processors and can include commands like ‘shell’, ‘cd’, ‘sleep’, ‘upload’, ‘taskkill’, or ‘dialog’ that allow cybercriminals to collect and upload files and obtain information about the infected device.

Despite these findings, Bitdefender has indicated that, for the moment, this malware campaign cannot be attributed to any known threat actor. However, they have observed similarities with the ransomware ALPHV/BlackCat which also uses the Rust programming language and “common domains” such as command and control infrastructure servers.

This new threat highlights the importance of staying vigilant and employing strong cybersecurity practices to protect against such attacks on MacOS users.

By Editor

Leave a Reply