Scroll way down to the linked signature section and you'll see:
7280-0, 7280-1 - these two are signatures that trigger on the smb vulnerability.
13491-0, 13492-0 - these two are meta signatures that make use of existing sigs 5602-0 5605-0 5589-0 to localize infected machines brute forcing their way about. Note that 5602, 5605, and 5589 need to be enabled for the meta signatures to fire.
Table of ContentsIntroductionVersion HistoryPossible Future
UpdatesDocuments PurposeNAT Operation in ASA 8.3+ SectionsRule Types
Network Object NATTwice NAT / Manual NATRule Types used per SectionNAT
Types used with Twice NAT / Manual NAT and Network Obje...
Table of Contents Introduction:This document describes details on how
NAT-T works. Background: ESP encrypts all critical information,
encapsulating the entire inner TCP/UDP datagram within an ESP header.
ESP is an IP protocol in the same sense that TCP an...