1791
The ransomware then displays a message onscreen , ordinarily demanding money and providing a sole text input field in which a user must enter an unlock code provided by the malefactor , after the money is paid .
 The ransomware: tool; displays a message onscreen: attack pattern
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:
 The ransomware: tool; displays a message onscreen: attack pattern