Cisco Cisco Email Security Appliance C190 Guía Del Usuario
Chapter 9 Anti-Virus
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Cisco IronPort AsyncOS 7.1 for Email Configuration Guide
OL-22158-02
Sophos Alerts
IronPort encourages customers who enable Sophos Anti-Virus scanning to
subscribe to Sophos alerts on the Sophos site at
http://www.sophos.com/virusinfo/notifications/.
Subscribing to receive alerts directly from Sophos will ensure you are apprised of
the latest virus outbreaks and their available solutions.
subscribe to Sophos alerts on the Sophos site at
http://www.sophos.com/virusinfo/notifications/.
Subscribing to receive alerts directly from Sophos will ensure you are apprised of
the latest virus outbreaks and their available solutions.
When a Virus is Found
When a virus has been detected, Sophos Anti-Virus can repair (disinfect) the file.
Sophos Anti-Virus can usually repair any file in which a virus has been found,
after which the file can be used without risk. The precise action taken depends on
the virus.
Sophos Anti-Virus can usually repair any file in which a virus has been found,
after which the file can be used without risk. The precise action taken depends on
the virus.
There can be limitations when it comes to disinfecting, because it is not always
possible to return a file to its original state. Some viruses overwrite part of the
executable program which cannot be reinstated. In this instance, you define how
to handle messages with attachments that could not be repaired. You configure
these settings on a per-recipient basis using the Email Security Feature: the Mail
Policies > Incoming or Outgoing Mail Policies pages (GUI) or the
possible to return a file to its original state. Some viruses overwrite part of the
executable program which cannot be reinstated. In this instance, you define how
to handle messages with attachments that could not be repaired. You configure
these settings on a per-recipient basis using the Email Security Feature: the Mail
Policies > Incoming or Outgoing Mail Policies pages (GUI) or the
policyconfig
-> antivirus
command (CLI). For more information on configuring these
settings, see
.
McAfee Anti-Virus Filtering
The McAfee® scanning engine:
•
Scans files by pattern-matching virus signatures with data from your files.
•
Decrypts and runs virus code in an emulated environment.
•
Applies heuristic techniques to recognize new viruses.
•
Removes infectious code from files.