3738
The attacker asked for 1 bitcoin ( about $ 905 ) for each infected computer , and then used unprotected desktop interface to infect other connected computers from remote .
 ( ransom: asked for,  1 bitcoin: price, attacker: attacker, $ 905: price, infected computer: victim, unprotected desktop interface: victim, infect other connected computers from remote: 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: asked for,  1 bitcoin: price, attacker: attacker, $ 905: price, infected computer: victim, unprotected desktop interface: victim, infect other connected computers from remote: attack pattern) 