Defensive Architecture: MacSync Stealer: Persistence via LaunchAgents

The MacSync Stealer utilizes a classic but effective persistence mechanism on macOS by installing a custom LaunchAgent. The 'updater' binary, hidden in the /Users/Shared directory, is executed every hour. This allows the malware to maintain a persistent connection to the C2 server even after system reboots.

  Labelcom.apple.sync.update
  ProgramArguments
  
    /Users/Shared/.macsync/updater
  
  RunAtLoad
  StartInterval3600

Monitoring for new files in ~/Library/LaunchAgents and /Library/LaunchAgents is critical. EDR solutions should flag any unsigned binaries executing from /Users/Shared, as this is a common staging area for macOS malware.