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A Samsam variant was used in a number of ransomware attacks on hospitals in 2016 , with attackers using vulnerable Java Web services to gain entry in several cases .
 2016: time; hospitals: victim; attackers: attacker; using vulnerable Java Web services: attack pattern; A Samsam variant: 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:
 2016: time; hospitals: victim; attackers: attacker; using vulnerable Java Web services: attack pattern; A Samsam variant: tool