2741
Named " MacDownloader " and posing as , what else , a fake Flash Player update , the new malware was found on the Mac of a human rights advocate and believed to originate from Iran .
 ( phishing: posing as,  MacDownloader: tool, a fake Flash Player update: trusted entity) 
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:
 ( phishing: posing as,  MacDownloader: tool, a fake Flash Player update: trusted entity) 