ReaderUpdate Reforged | Melting Pot of macOS Malware Adds Go to Crystal, Nim and Rust Variants

ReaderUpdate Reforged | Melting Pot of macOS Malware Adds Go to Crystal, Nim and Rust Variants

ReaderUpdate is a macOS malware loader platform that, despite having been in the wild since at least 2020, has passed relatively unnoticed by many vendors and remains widely undetected. A report in 2023 observed that ReaderUpdate infections were contiguous with but distinct from WizardUpdate (aka UpdateAgent, Silver Toucan) infections and seen to deliver Genieo (aka DOLITTLE) adware. The loader seems to have been largely dormant since then until…