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The first big botnet made up of TVT devices was discovered by Sucuri in June 2016 , consisted of over 25,000 bots , and was used to launch Layer 7 DDoS attacks of up to 50,000 requests per second .
 Sucuri: discoverer; June 2016: time; TVT devices: vulnerable system; launch Layer 7 DDoS attacks: capabilities
Given event type and trigger, please tell me the arguments of all the listed option. Output format is "name1: role1; name2: role2". 
Event type: discover vulnerability 
  Option: vulnerable system owner, vulnerability, capabilities, time, vulnerable system version, discoverer, common vulnerabilities and exposures, supported platform, vulnerable system 
Text: {0} 
Answer:
 Sucuri: discoverer; June 2016: time; TVT devices: vulnerable system; launch Layer 7 DDoS attacks: capabilities