Last week, 300 houses were raided and 81 people were arrested as part of an international law enforcement operation targeting people believed to be responsible for selling, creating and using the BlackShades Remote Access Trojan (RAT). First rumors of the operation emerged last week, when the members of various popular hacker forums revealed that they were raided by police. On Monday, Europol confirmed the operation and provided more details. Raids took place in over 10 countries, inc…