3415
Experts say hackers using Cerber ransomware usually demand $ 1,000 in bitcoin from infected users .
 $ 1,000: price; in bitcoin: payment method; using Cerber ransomware: attack pattern; hackers: 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:
 $ 1,000: price; in bitcoin: payment method; using Cerber ransomware: attack pattern; hackers: victim