1450
During our research , we observed the IPs related to the Godzilla Botnet loader serving payloads associated with exploits for the latest zero - day vulnerability in Microsoft Office .
 ( discover vulnerability: observed,  the latest zero - day vulnerability: vulnerability, Microsoft Office: vulnerable system, we: discoverer) 
Locate the role in the text that participated in the event based on the event type and return it in the event list. 
 Option: Event type: phishing, data breach, ransom, discover vulnerability, patch vulnerability, Arguments type: vulnerable system, capabilities, vulnerability, number of victim, issues addressed, compromised data, damage amount, common vulnerabilities and exposures, victim, patch number, number of data, tool, discoverer, time, purpose, place, payment method, releaser, vulnerable system version, attacker, supported platform, patch, price, vulnerable system owner, trusted entity, attack pattern. 
Text: {0} 
Answer:
 ( discover vulnerability: observed,  the latest zero - day vulnerability: vulnerability, Microsoft Office: vulnerable system, we: discoverer) 