3620
The malware is contained in phishing emails which appear to be from job applicants , and once downloaded and installed , demands $ 1000 in Bitcoin to unlock infected systems
 ( ransom: demands,  infected systems: victim, $ 1000 in Bitcoin: price, The malware is contained in phishing emails: attack pattern) 
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:
 ( ransom: demands,  infected systems: victim, $ 1000 in Bitcoin: price, The malware is contained in phishing emails: attack pattern) 