Symantec has uncovered yet another sophisticated, malware-based spying tool, dubbed “Regin,” apparently the latest spyware tool created by a national government agency.The company's research, published Sunday, identifies Regin—also known as Backdoor.Regin—as a Trojan virus that exhibits “a degree of technical competence rarely seen” on behalf of its creators. Its purpose appears to be mass surveillance of government organizations, businesses, researchers, and individuals.