3522
More specifically , the year of crypto - ransomware , that nefarious variant that encrypts files and holds them captive until a ransom is paid .
 encrypts files: attack pattern; crypto - 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:
 encrypts files: attack pattern; crypto - ransomware: tool