SAN FRANCISCO — In a win for Symantec Corp. and its lawyers at Fenwick & West, a federal judge has dismissed a putative class action accusing the company of promoting and selling antivirus software executives knew had been rendered unreliable by a data breach.

U.S. District Judge Jon Tigar ruled plaintiffs did not provide enough specific information to back up their claims that the Mountain View software company engaged in fraudulent business practices and deceptive advertising. Tigar, who had dismissed two prior complaints, denied plaintiffs leave to amend the complaint earlier this month and granted final judgment in Symantec’s favor Monday.