2743
Security researchers found that this malware was originally designed as a fake Bitdefender antivirus , but was later repackaged as a fake Flash Player update .
 ( phishing: was originally designed as,  this malware: tool, a fake Bitdefender antivirus: trusted entity) 
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:
 ( phishing: was originally designed as,  this malware: tool, a fake Bitdefender antivirus: trusted entity) 