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Panda Security researchers have been following and analyzing ransomware attacks that have been targeting European business for a few months now , and have tied them to the same group .
 European business: victim; a few months now: time
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:
 European business: victim; a few months now: time