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Over 200 victims in Europe and beyond continue to suffer from a brand new ransomware attack demanding Bitcoin to release encrypted files .
 ( ransom: ransomware attack demanding Bitcoin,  victims: victim, Europe: place, encrypted files: attack pattern) 
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: ransomware attack demanding Bitcoin,  victims: victim, Europe: place, encrypted files: attack pattern) 