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The MacDownloader malware was designed to profile the victim 's computer , and then steal credentials by generating fake system login boxes and harvesting them from Apple 's password management system , Keychain .
 ( data breach: steal,  credentials: compromised data, generating fake system login boxes: attack pattern, computer: victim, The MacDownloader malware: tool, victim: 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: steal,  credentials: compromised data, generating fake system login boxes: attack pattern, computer: victim, The MacDownloader malware: tool, victim: victim) 