ZyXEL Communications ZYWALL USG 2000 Support Notes page 226

ZyWALL USG 2000 Support Notes
P. Anti-Virus FAQ
P01. Is there any file size or amount of concurrent files limitation with ZyWALL
USG 2000 Anti-Virus engine?
Due to ZyWALL USG 2000 Anti-Virus engine is a stream-based AV system, there is no strict
limitations in file size or amount of concurrent files can be scanned.
P02. Does ZyWALL USG 2000 Anti-Virus support compressed file scanning?
Yes, the ZyWALL USG 2000 Anti-Virus engine supports virus scanning with compression
format ZIP, PKZIP, GZIP and RAR.
P03. What is the maximum concurrent session of ZyWALL USG 2000 Anti-Virus
engine?
Due to ZyWALL USG 2000 Anti-Virus engine is in stream-based; therefore, there is no
limitations in concurrent session.
P04. How many type of viruses can be recognized by the ZyWALL USG 2000?
Anti-Virus engine can detect over 20000 common viruses, including worms and Trojans. The
amount of virus can be detected is depend on amount of virus signature stored in the ZyWALL.
In general, it covers the top 20000 active viruses in the wild list and the number of signatures
on device is always at 3200.
P05. How frequent the AV signature will be updated?
The signature is powered by Kaspersky Labs. The signatures are updated 3 times a week. The
emergency case will be responded within 48 hours.
P06. How to retrieve the virus information in detail?
Simply you can navigate to the web site with URL http://mysecurity.zyxel.com, and search
any virus relate detail as you required.
P07. I cannot download a file from Internet through ZyWALL USG 2000 because
the Anti-Virus engine considers this file has been infected by the virus; however,
I am very sure this file is not infected because the file is nothing but a plain text
file. How do I resolve this problem?
You can add this file to the White List on ZyWALL USG 2000 to avoid this situation.
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