1084
Usually , these types of groups launch DDoS attacks and then send emails to their victims requesting for payments to stop the attacks .
 groups: attacker; launch DDoS attacks: attack pattern; their victims: victim
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:
 groups: attacker; launch DDoS attacks: attack pattern; their victims: victim