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A computer infected with the Fatboy malware will display the above message , explaining that the user ’s files have been encrypted , stating the ransom amount , and warning the user against interfering with the ransomware .
 ( ransom: stating the ransom,  the user ’s files have been encrypted: attack pattern, Fatboy malware: tool, ransomware: tool, user: 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:
 ( ransom: stating the ransom,  the user ’s files have been encrypted: attack pattern, Fatboy malware: tool, ransomware: tool, user: victim) 