1583
F5 experts say that in the beginning , attackers targeted Struts instances running on Linux servers , where they would end up installing the PowerBot malware , an IRC - controlled DDoS bot also known as PerlBot or Shellbot .
 discover vulnerability: say
Please tell me event type and its trigger word from given type options. Output format is "type: trigger".  Option: phishing, data breach, ransom, discover vulnerability, patch vulnerability 
Text: {0} 
Answer:
 discover vulnerability: say