What model ASA do you have? You will require a NGFW with CX to achieve what you want.
Within either PRSM or managing the CX directly off the ASA. Create a new access policy, you will select source and destination then in the "Application/Service" section, this is where you select the application, in this case "BitTorrent" and "Skype"
Policy Action being Deny
At least it should be similar to the above, the CX "module" is far from being a power house NGFW offering. *sigh*
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...