I assume you know what will appear in the 'User-Agent' Field. If you don't that would be your first step by using tcpdump over a sustained period of time. With that information you could craft a simple HeaderRegex that would match on what you are looking for. The following example would fire upon detecting a Mozilla browser.....
It almost did. My previous attempts did not take in all the rules for Regular Expressions. Following your example I have configured the sensor, however packetd now refuses to start. I get "W WARNING suppressed while parsing global parameter" messages in the error log.
Could you please cut and paste the SigWizMenu screen that describes your signature for us. This will help us to see what might be wrong. If you can't do that (it might prove to be fairly difficult) could you please forward your SigUser.conf file to email@example.com.
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...