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To remove the ransomware , the culprit behind the strain has demanded either a ransom of 10 BTC to be paid or a malicious software that could potentially infect thousands be downloaded by the victim .
 the strain: tool; culprit: attacker; 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:
 the strain: tool; culprit: attacker; ransomware: tool