Overview
Chapter 14: Using VStream Antivirus
309
Chapter 14
This chapter explains how to use the VStream Antivirus engine to block security threats before they reach
your network.
This chapter includes the following topics:
Overview .................................................................................................. 309
Enabling/Disabling VStream Antivirus .................................................... 311
Viewing VStream Antivirus Signature Database Information ................. 311
Configuring VStream Antivirus ............................................................... 312
Updating VStream Antivirus .................................................................... 324
Overview
The IP60 appliance includes VStream Antivirus, an embedded stream-based antivirus engine based on
Check Point Stateful Inspection and Application Intelligence technologies, that performs virus scanning at
the kernel level.
VStream Antivirus scans files for malicious content on the fly, without downloading the files into
intermediate storage. This means minimal added latency and support for unlimited file sizes; and since
VStream Antivirus stores only minimal state information per connection, it can scan thousands of
connections concurrently. In order to scan archive files on the fly, VStream Antivirus performs real-time
decompression and scanning of ZIP, TAR, and GZ archive files, with support for nested archive files.
When VStream Antivirus detects malicious content, the action it takes depends on the protocol in which the
virus was found. See the following table. In each case, VStream Antivirus blocks the file and writes a log to
the Event Log.
Table 84: VStream Antivirus Actions
If a virus if found in
this protocol...
VStream Antivirus does this... The protocol is detected
on this port...
HTTP
Terminates the
connection
All ports on which VStream
Antivirus is enabled by the
policy, not only port 80
POP3
Terminates the
connection
Deletes the virus-
infected email from the
server
The standard TCP port 110.
Using VStream Antivirus
Содержание IP60 - Security Appliance
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