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However , as the world returned to the office on Monday , those payments have been rapidly mounting , based on tracking data for the three Bitcoin wallets tied by researchers to the malware .
 Monday: time; Bitcoin wallets: payment method; malware: 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:
 Monday: time; Bitcoin wallets: payment method; malware: tool