Your company network includes Microsoft Exchange Server 2007 and Forefront Protection for Exchange Server (FPE) 2010 in a Windows Server 2008 environment. You discover unknown malware (malicious…

Your company network includes Microsoft Exchange Server 2007 and Forefront Protection for Exchange Server (FPE) 2010 in a Windows Server 2008 environment. You discover unknown malware (malicious software) that has infected some mailboxes. You view the FPE console. You do not see a notification regarding the malware infection. You need to immediately scan specific mailboxes. Which type of scan should you run?