3300
Previously , most of the spam emails distributing Locky came from the spam sent out via Necurs , a botnet of PCs infected with the Necurs bootkit .
 the spam emails: tool; distributing Locky: purpose; the spam sent out: attack pattern; Necurs: 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: phishing 
  Option: victim, attacker, attack pattern, purpose, damage amount, tool, time, place, trusted entity 
Text: {0} 
Answer:
 the spam emails: tool; distributing Locky: purpose; the spam sent out: attack pattern; Necurs: tool