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LabCorp , one of the largest clinical labs in the U.S. , said the Samsam ransomware attack that forced their systems offline was contained quickly and did n't result in a data breach .
 forced their systems offline: attack pattern; LabCorp: 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:
 forced their systems offline: attack pattern; LabCorp: victim