There are currently 3 Antivirus solutions for the SRX all of which require a different license to activate:
* Kapersky
* Sophos
* Juniper Express
Briefly, some differences between the 3 options are:
Kaspersky
* Full file based AV
* Local signature database lookups. AV signatures downloaded as a package.
* Largest cpu performance impact
* Supports Intelligent Prescreening
Sophos
* Cloud based signature database which therefore requires..
* Constant Internet access needed for AV lookups.
* Moderate cpu perfomance impact
* No Prescreening
Juniper Express
* Less protection than the other 2 options
* Only protects against critical threats. Modified Kaspersky database.
* Does not reconstruct content prior to scanning
* Pattern matching based solution. No heuristics.
* No protection against polymorphic or metamorphic viruses
* Supports Intelligent Prescreening
