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The main purpose of MacDownloader seems to be to perform an initial profiling of the infected system and collection of credentials from macOS ’s Keychain password manager – which mirrors the focus of Windows malware developed by the same actors .
 ( data breach: collection,  MacDownloader: tool, credentials: compromised data, macOS ’s Keychain password manager: victim) 
Locate the role in the text that participated in the event based on the event type and return it in the event list. 
 Option: Event type: phishing, data breach, ransom, discover vulnerability, patch vulnerability, Arguments type: vulnerable system, capabilities, vulnerability, number of victim, issues addressed, compromised data, damage amount, common vulnerabilities and exposures, victim, patch number, number of data, tool, discoverer, time, purpose, place, payment method, releaser, vulnerable system version, attacker, supported platform, patch, price, vulnerable system owner, trusted entity, attack pattern. 
Text: {0} 
Answer:
 ( data breach: collection,  MacDownloader: tool, credentials: compromised data, macOS ’s Keychain password manager: victim) 