2006
Malware posing as legitimate software for Siemens control gear has apparently infected industrial equipment worldwide over the past four years .
 legitimate software: trusted entity; Malware: tool; infected industrial equipment worldwide: purpose; over the past four years: time; Siemens: trusted entity
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:
 legitimate software: trusted entity; Malware: tool; infected industrial equipment worldwide: purpose; over the past four years: time; Siemens: trusted entity