MITRE ATT&CK® Reference

Software

Malware and tool entries linked to techniques, groups, and campaigns.

1 records · validated library

Software results

Results are validated against normalized ATT&CK source records when available; sample records are used only in development or empty-data environments.

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S0658: XCSSET

XCSSET is a modular macOS malware family delivered through infected Xcode projects and executed when the project is compiled. Active since August 2020, it has been observed installing backdoors, spoofed browsers, collecting data, and encrypting user files. It is composed of SHC-compiled shell scripts and run-only AppleScripts, often hiding in apps that mimic system tools (such as Xcode, Mail, or Notes) or use familiar icons (like Launchpad) to avoid detection.[1][2][3]

macOS

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