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Mekinac ’s attackers used malicious software — known as malware or ransomware — to demand money in return for keys to unlock the data .
 malware: tool; used malicious software: attack pattern; attackers: attacker; Mekinac: victim; ransomware: tool
Given event type and trigger, please tell me the arguments of all the listed option. Output format is "name1: role1; name2: role2". 
Event type: ransom 
  Option: victim, attacker, payment method, attack pattern, damage amount, tool, time, price, place 
Text: {0} 
Answer:
 malware: tool; used malicious software: attack pattern; attackers: attacker; Mekinac: victim; ransomware: tool