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Finder Sync Plugin Registered and Enabled

Elastic Detection Rules

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Summary
This detection rule targets malicious usage of Finder Sync plugins on macOS systems, which enhance Finder functionality by allowing third-party modifications. Adversaries can exploit this feature by inserting rogue plugins that execute unauthorized payloads for persistence. The rule monitors the registration of Finder Sync plugins through the `pluginkit` process while filtering known safe plugins to detect any potentially harmful registrations. Instances of the `pluginkit` process invoked with the arguments `-e`, `use`, and `-i` are scrutinized, particularly when they don't correlate with known safe entities. This is critical for identifying potential threats and averting persistent malicious setups on macOS endpoints.
Categories
  • Endpoint
  • macOS
Data Sources
  • Process
  • Application Log
  • Command
ATT&CK Techniques
  • T1543
Created: 2020-12-18