505
Victims of one the newest - and most unusual - families of ransomware could now be able to recover their files without giving into the demands of criminals because decryption tools have been released for free .
 Victims: victim; families of ransomware: tool; criminals: attacker
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:
 Victims: victim; families of ransomware: tool; criminals: attacker