Title: www.webroot.com/safe
1How to properly scan your computer for malware
2Introduction
- Desktop virtualization is a transformative
platform technology that can deliver
cost-effective, manageable network and desktop
access to workers with diverse computing needs. - Problems with Standard Antivirus Protection
- The VMware Solution to Antivirus Protection
- Vmware vshield endpoint architecture in brief
- Antivirus protection for the entire virtual
desktop infrastructure
3Problems with standard antivirus protection -
- The typical top-down virus scanning model
involves agents executing on every desktop
performing antivirus scanning and signature file
updates, with access to an auto-update server.
During these operations, it is not uncommon for
system resource usage to spike or become overly
committed. Performance in the desktop environment
is severely impacted by these antivirus storms.
4The vmware solution to antivirus protection -
- Vmware vshield endpoint is the solution to the
problems inherent in antivirus scanning in a
large-scale virtual desktop implementation. In a
horizon view environment, vshield endpoint
consolidates and offloads all antivirus
operations into one centralized security virtual
appliance (SVA). Vmware recommends the following
partners who have integrated their antivirus
solutions with vshield endpoint - 1. Bitdefender 2. Kaspersky
3. Mcafee - 4. Sourcefire 5. Symantec
6. Trend micro
5Vmware vshield endpoint architecture in brief -
- Vmware vshield endpoint is integrated with
vsphere and protects virtual machines against
viruses. Administrators can centrally manage
vmware vshield endpoint through the included
vshield manager console, which integrates with
vmware vcenter server for unified security
management in the virtual datacenter. Each
virtual machine to be protected requires only a
small-footprint vshield endpoint driver, which is
part of the vmware tools installation for the
virtual machine.
6Antivirus protection for the entire virtual
desktop infrastructure -
- The vshield endpoint solution from vmware
partners provides complete protection for virtual
machines running in a production horizon view
environment. For storage and other servers
connected to the virtual desktop infrastructure,
vmware recommends a complementary solution from a
vmware antivirus software partner. The following
sections provide best practices for managing
antivirus protection for these three
componentsthe virtual machines, the security
server, and storage. - In a horizon view environment, you have three
focal points for antivirus protection - - 1. virtual machines 2. view security server
3. storage
7Articles for virus countermeasures -
- 1. Vaccine software - Those who are using
antivirus software must perform scan using the
latest virus-scanning engine and virus definition
files. Day by day, new viruses are detected one
after another even though some of them may look
exactly the same as existing viruses, they are in
fact subspaces of a specific virus. So the
antivirus software should be kept updated so it
can properly deal with such new viruses.
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8Articles for virus countermeasures -
- 2. Email attachment files - Computer viruses
are often contained in email attachments. Even if
the email is from your close friend, scan the
attached files for viruses before opening them.
The number of incidents caused by emails
containing forged sender information is
increasing. In order to protect your computer
from such emails, you must also be careful with
emails from unknown sources and forged service
providers.
92. Email attachment files -
102. Email attachment files -
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- 3. Downloaded files - various files such as
image files, music files and video files can be
downloaded from the internet, but there is a
possibility of a malicious program or instruction
code being embedded in those files. To avoid
this, be sure to scan downloaded files before
using them.
123. Downloaded files -
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- 4. For applications - when using mailer
software to send or receive emails, or a web
browser to access web sites on the internet,
utilize the security functions/ settings supplied
with the application software.
14Articles for virus countermeasures -
- 5. Security patches - recent viruses exploit
vulnerabilities in the operating systems and
application software. If there is any
vulnerability, your computer can be infected with
viruses only by previewing emails or accessing
the internet. For example, vulnerability in
mailer software allowing the automatic execution
of attachment files can be exploited by viruses,
which can cause a broader damage. Such
vulnerabilities are detected at short intervals,
so it is important to periodically visit the
vender's web site and check for any related
information on the application
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- 6 . Symptoms of virus infection - if you have
encountered symptoms listed below, you computer
may have been infected with computer viruses. Do
not overlook them and scan your computer for
viruses.
166 . symptoms of virus infection -
- System or application software often gets hosed
(freezes), or the system does not start. - Files disappear. Unknown files exist.
- Strange icons appear on the task bar.
- Attempts are made to access the internet without
any operation. - Emails are sent without the users consent.
- Can intuitively sense that there is something
wrong with the computer.
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- 7. In case of emergency - data corrupted by
viruses cannot be restored by using antivirus
software. Make it a rule to back up data on a
regular basis so you can restore the system from
any damage caused by virus infection. In
addition, keep in a safe place the original
CD-ROMs of application software. Should the
contents of the hard drive be damaged, you can
restore them using the CD-ROMs.
187. In case of emergency -
19Articles for virus countermeasures -
- 8. Should your computer be infected with a virus
- scan your computer for viruses using the
latest virus definition files. If you have been
able to identify the name of the virus but do not
know how to eliminate it, visit the web site of
your antivirus software manufacture and look for
information related to the virus, and then follow
the instructions presented on the web page. If
you have no antivirus software at hand but can
access the internet, you can still use
free-online scan services provided by some
venders to identify the name of the virus. If
identified, look for the information on the virus
and follow the instructions presented on that web
page.