Antivirus and antispyware definitions : These definitions contain two types of updates, full-version update and direct-delta update. The type of the update is
included in the update package. Separate virus definition packages are available for the x86 and the x64 platforms.
Decomposer signatures These signatures support the Antivirus and Antispyware Protection engine, and are used to decompose and read the
data that is stored in various formats.
TruScan proactive threat scan heuristic signatures : These signatures protect against zero-day attack threats.
TruScan proactive threat scan commercial application list These application lists are the legitimate commercial applications that have generated false positives in the past.
Intrusion Prevention signatures These signatures protect against network threats and support the intrusion prevention and detection engines.
Symantec Security Response. Submission Control :These signatures control the flow of submissions to signatures
Host Integrity Signature :These templates include the predefined requirements that enforce updated patches and security measures on the client
computer. Only available in the Site Properties dialog box when you install Symantec Network Access Control