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Page 471 / 944 Scroll up to view Page 466 - 470
Chapter 29 Anti-Virus
ZyWALL USG 50 User’s Guide
471
29.3
Anti-Virus Black List
Click
Configuration > Anti-X
>
Anti-Virus > Black/White List
to display the
screen shown next. Use the
Black List
screen to set up the Anti-Virus black
(blocked) list of virus file patterns. Click a column’s heading cell to sort the table
entries by that column’s criteria. Click the heading cell again to reverse the sort
order.
Figure 284
Configuration > Anti-X > Anti-Virus > Black/White List > Black List
Destroy
compressed
files that could
not be
decompressed
Note: When you select this option, the ZyWALL deletes ZIP files
that use password encryption.
Select this check box to have the ZyWALL delete any ZIP files that it
is not able to unzip. The ZyWALL cannot unzip password protected
ZIP files or a ZIP file within another ZIP file. There are also limits to
the number of ZIP files that the ZyWALL can concurrently unzip.
Note: The ZyWALL’s firmware package cannot go through the
ZyWALL with this option enabled. The ZyWALL classifies
the firmware package as not being able to be
decompressed and deletes it.
You can upload the firmware package to the ZyWALL with the option
enabled, so you only need to clear this option while you download
the firmware package.
OK
Click
OK
to save your changes.
Cancel
Click
Cancel
to exit this screen without saving your changes.
Table 136
Configuration > Anti-X > Anti-Virus > General > Add (continued)
LABEL
DESCRIPTION
Page 472 / 944
Chapter 29 Anti-Virus
ZyWALL USG 50 User’s Guide
472
The following table describes the labels in this screen.
29.4
Anti-Virus Black List or White List Add/Edit
From the
Configuration > Anti-X
>
Anti-Virus > Black/White List > Black
List
(or
White List
) screen, click the
Add
icon or an
Edit
icon to display the
following screen.
•
For a black list entry, enter a file pattern that should cause the ZyWALL to log
and delete a file.
•
For a white list entry, enter a file pattern that should cause the ZyWALL to allow
a file.
Figure 285
Configuration > Anti-X > Anti-Virus > Black/White List > Black List (or
White List) > Add
Table 137
Configuration > Anti-X > Anti-Virus > Black/White List > Black List
LABEL
DESCRIPTION
Enable Black
List
Select this check box to log and delete files with names that match the
black list patterns. Use the black list to log and delete files with names
that match the black list patterns.
Add
Click this to create a new entry.
Edit
Select an entry and click this to be able to modify it.
Remove
Select an entry and click this to delete it.
Activate
To turn on an entry, select it and click
Activate
.
Inactivate
To turn off an entry, select it and click
Inactivate
.
Status
The activate (light bulb) icon is lit when the entry is active and dimmed
when the entry is inactive.
#
This is the entry’s index number in the list.
File Pattern
This is the file name pattern. If a file’s name that matches this pattern,
the ZyWALL logs and deletes the file.
Apply
Click
Apply
to save your changes.
Reset
Click
Reset
to return the screen to its last-saved settings.
Page 473 / 944
Chapter 29 Anti-Virus
ZyWALL USG 50 User’s Guide
473
The following table describes the labels in this screen.
29.5
Anti-Virus White List
Click
Configuration > Anti-X
>
Anti-Virus > Black/White List > White List
to display the screen shown next. Use the
Black/White List
screen to set up
Anti-Virus black (blocked) and white (allowed) lists of virus file patterns. Click a
Table 138
Configuration > Anti-X > Anti-Virus > Black/White List > Black List (or
White List) > Add
LABEL
DESCRIPTION
Enable
If this is a black list entry, select this option to have the ZyWALL apply
this entry when using the black list.
If this is a white list entry, select this option to have the ZyWALL apply
this entry when using the white list.
File Pattern
For a black list entry, specify a pattern to identify the names of files that
the ZyWALL should log and delete.
For a white list entry, specify a pattern to identify the names of files that
the ZyWALL should not scan for viruses.
•
Use up to 80 characters. Alphanumeric characters, underscores (
_
),
dashes (-), question marks (?) and asterisks (*) are allowed.
•
A question mark (?) lets a single character in the file name vary. For
example, use “a?.zip” (without the quotation marks) to specify
aa.zip, ab.zip and so on.
•
Wildcards (*) let multiple files match the pattern. For example, use
“*a.zip” (without the quotation marks) to specify any file that ends
with “a.zip”. A file named “testa.zip would match. There could be any
number (of any type) of characters in front of the “a.zip” at the end
and the file name would still match. A file named “test.zipa” for
example would not match.
•
A * in the middle of a pattern has the ZyWALL check the beginning
and end of the file name and ignore the middle. For example, with
“abc*.zip”, any file starting with “abc” and ending in “.zip” matches,
no matter how many characters are in between.
•
The whole file name has to match if you do not use a question mark
or asterisk.
•
If you do not use a wildcard, the ZyWALL checks up to the first 80
characters of a file name.
OK
Click
OK
to save your changes.
Cancel
Click
Cancel
to exit this screen without saving your changes.
Page 474 / 944
Chapter 29 Anti-Virus
ZyWALL USG 50 User’s Guide
474
column’s heading cell to sort the table entries by that column’s criteria. Click the
heading cell again to reverse the sort order.
Figure 286
Configuration > Anti-X > Anti-Virus > Black/White List > White List
The following table describes the labels in this screen.
29.6
Signature Searching
Click
Configuration > Anti-X
>
Anti-Virus > Signature
to display this screen.
Use this screen to locate signatures and display details about them.
Table 139
Configuration > Anti-X > Anti-Virus > Black/White List > White List
LABEL
DESCRIPTION
Enable White
List
Select this check box to have the ZyWALL not perform the anti-virus
check on files with names that match the white list patterns.
Use the white list to have the ZyWALL not perform the anti-virus check
on files with names that match the white list patterns.
Add
Click this to create a new entry.
Edit
Select an entry and click this to be able to modify it.
Remove
Select an entry and click this to delete it.
Activate
To turn on an entry, select it and click
Activate
.
Inactivate
To turn off an entry, select it and click
Inactivate
.
Status
The activate (light bulb) icon is lit when the entry is active and dimmed
when the entry is inactive.
#
This is the entry’s index number in the list.
File Pattern
This is the file name pattern. If a file’s name matches this pattern, the
ZyWALL does not check the file for viruses.
Apply
Click
Apply
to save your changes.
Reset
Click
Reset
to return the screen to its last-saved settings.
Page 475 / 944
Chapter 29 Anti-Virus
ZyWALL USG 50 User’s Guide
475
If Internet Explorer opens a warning screen about a script making Internet
Explorer run slowly and the computer maybe becoming unresponsive, just click
No
to continue. Click a column’s heading cell to sort the table entries by that
column’s criteria. Click the heading cell again to reverse the sort order.
Figure 287
Configuration > Anti-X > Anti-Virus > Signature: Search by Severity

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