Cisco Cisco Email Security Appliance X1070 Notas de publicación
4
Release Notes for Cisco AsyncOS 8.5.6 for Email
What’s New
What’s New in Cisco AsyncOS 8.5.5 for Email
What’s New in Cisco AsyncOS 8.5.0 for Email
Feature
Description
File Reputation
Filtering and File
Analysis
Filtering and File
Analysis
Advanced Malware Protection identifies emerging and targeted file-based threats
in file attachments based on:
in file attachments based on:
•
File reputation
•
File analysis (for certain files with unknown reputations)
•
Updated verdicts after a file has been released to the network
As new information becomes available about files, threat verdicts are updated,
providing you with a starting point for investigating threats that were received
before they were known even to the Advanced Malware Protection services.
providing you with a starting point for investigating threats that were received
before they were known even to the Advanced Malware Protection services.
New reports identify infected files found by reputation, provide status and outcome
of files sent for analysis, and list files for which verdicts have been updated.
Existing reports have been updated with new sections or table columns to let you
research users, sites, and trends involving infected files.
of files sent for analysis, and list files for which verdicts have been updated.
Existing reports have been updated with new sections or table columns to let you
research users, sites, and trends involving infected files.
Feature
Description
New Features
URL filtering
URL filtering obtains the reputation and category of URLs in incoming and
outgoing messages to allow several new functionalities:
outgoing messages to allow several new functionalities:
•
Anti-spam and outbreak filters now use the reputation and category of
URLs in messages to help determine if a message is spam or malicious.
This additional data improves the filtering accuracy for messages that
contain URLs.
URLs in messages to help determine if a message is spam or malicious.
This additional data improves the filtering accuracy for messages that
contain URLs.
•
You can further reduce the threat from potentially malicious sites by
modifying URLs in delivered messages. You can make URLs
unclickable, replace them with text, or redirect them to a proxy that
evaluates the safety of a site if and when the recipient clicks the link, and
blocks transactions it deems unsafe. You can create content and message
filters to modify URLs based on categories of URL that are likely to be
problematic.
modifying URLs in delivered messages. You can make URLs
unclickable, replace them with text, or redirect them to a proxy that
evaluates the safety of a site if and when the recipient clicks the link, and
blocks transactions it deems unsafe. You can create content and message
filters to modify URLs based on categories of URL that are likely to be
problematic.
•
You can create content and message filters to enforce acceptable use
policies based on the category of URLs in messages. For example, you
can drop messages that include links in the Illegal Activities category.
policies based on the category of URLs in messages. For example, you
can drop messages that include links in the Illegal Activities category.
For more information, see
and the new
URL Filtering chapter in the user guide or online help.