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If users clicked OK , the malicious app locked the device and displayed the following message : You need to pay for us , otherwise we will sell portion of your personal information on black market every 30 minutes .
 locked the device: attack pattern; message: tool; the malicious app: 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: ransom 
  Option: victim, attacker, payment method, attack pattern, damage amount, tool, time, price, place 
Text: {0} 
Answer:
 locked the device: attack pattern; message: tool; the malicious app: tool