All news with #xcsset tag

New macOS XCSSET Variant Targets Browsers and Clipboard

🛡️ Microsoft Threat Intelligence reported a new macOS malware variant of XCSSET that introduces browser-targeting changes, clipboard hijacking, and additional persistence mechanisms. The update uses run-only compiled AppleScripts, enhanced obfuscation and encryption, and expands data theft to include Firefox. New modules implement clipper behavior and LaunchDaemon- and Git-based persistence. Users should inspect Xcode projects and avoid pasting sensitive clipboard content.

Microsoft: New XCSSET macOS Variant Targets Xcode Developers

🛡️ Microsoft Threat Intelligence has identified a new variant of the XCSSET macOS infostealer that has appeared in limited attacks and specifically targets Xcode projects. The variant expands capabilities to steal Firefox data using a modified HackBrowserData build, hijack the clipboard to replace cryptocurrency addresses, and employ new persistence techniques. It spreads by infecting shared Xcode project files so malicious code runs when a project is built. Microsoft says the campaign is not widespread and has notified Apple and GitHub while advising developers to inspect projects and keep macOS and apps up to date.

XCSSET Evolves: New Clipboard, Firefox, Persistence Modules

🔍 Microsoft Threat Intelligence describes a new XCSSET variant that infects Xcode projects and expands capabilities to include clipboard hijacking, Firefox data theft, and additional persistence via LaunchDaemon entries. The actor uses run-only compiled AppleScripts, AES-based encryption, and layered obfuscation to evade analysis. A bnk submodule monitors and can replace wallet addresses in the clipboard while a new Mach-O binary targets Firefox data. Organizations are advised to patch promptly, inspect Xcode project sources, and deploy Microsoft Defender for Endpoint.