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The attackers , the Lookout researchers said , purchased a large number of domains in an attempt to " catch users that are seeking controversial content on the internet and coerce them into paying a ransom to them . "
 them: attacker; users: victim; The attackers: attacker
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:
 them: attacker; users: victim; The attackers: attacker