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" Ransomware " is a specific type of malicious software that infects computers and locks or encrypts their content , demanding a ransom to return the machines to their original state .
 Ransomware: tool; the machines: victim; locks or encrypts their content: attack pattern; infects computers: attack pattern
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:
 Ransomware: tool; the machines: victim; locks or encrypts their content: attack pattern; infects computers: attack pattern