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| How
do I get rid of Viruses, Trojans and Spyware? |
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ANTI-VIRUS SOFTWARE
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You MUST have anti-virus software on your computer
and, just as important, you MUST update it on a
regular basis. The best thing to do is to set your anti-virus software
to automatically update itself every day or, if you are using a
dialup internet connection, to update itself whenever you log onto
the Internet. You should make sure that your anti-virus software
is up to date before you collect your emails and/or download any
files.
If you bought a computer within the past 2 years or so, it probably
came with anti-virus software pre-loaded. Most likely, it came with
a copy of Norton, McAfee or Panda brand of anti-virus software with
a one-year subscription to their respective update service. Hopefully,
you updated your anti-virus software throughout the years’
subscription. But, when that year was up, did you renew that subscription
to be able to keep the Anti-Virus software up to date? Hopefully,
you did - and you’ve continued to do so – so that you’ve
kept your computer safe from viruses. If you didn’t then your
computer is probably full of viruses. If you go to your Anti-Virus
software publishers’ website you can renew your subscription
and download the latest updates and check your computer for viruses
and remove them.
If you don’t have any Anti-Virus software on your computer
or want to change from the one that you already have, there are
plenty of choices out there.
You can buy and download Anti-Virus software from any one of
the companies listed in the software section. AVG, however,
offer a free edition of their Anti-Virus software for home users.
I have found this to be a very good solution.
One thing to remember, is that it is not a good idea to have more
than one Anti-Virus software package on your computer. So, if you
are changing Anti-Virus software packages, make sure that you uninstall
the old package before you install the new one. Plus, as soon as
you have installed the new package, and ensured that it is uptodate,
use it to check your computer for any viruses
But, whichever Anti-Virus package you choose to use, it is essential
that you update it on a regular basis. Ideally, you should check
for updates every day or, at the very least, each time you log onto
the Internet. You should definitely NOT collect and read your emails
until you have updated your Anti-Virus software
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TROJANS, MALWARE
AND SCAMS |
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I’ve just received an email from Microsoft telling me that
there is a new security update and that I should click on the “Go
to download page” button to get this update. What should I
do? Ignore it and delete it. You have received a hoax email. It
did not come from Microsoft
These hoax emails are not innocent pranks. They have a malicious
intent. The link and button use cloaking to disguise the true destination
that you are being taken to. So, while you might see http://www.microsoft.com
in the address bar of your browser, you are actually being taken
to a completely different website. Again, most often these websites
can be traced to Russia and/or other Eastern European countries
where they are being used by criminal gangs.
If you were to follow the link to the fake Microsoft website, a
"trojan" will be installed automatically on your computer.
A “trojan” is a file or program that masquerades as
a “good” file or programmer but is, in fact, secretly
doing bad things to your computer. These are sometimes called “malware”.
One of the bad things that a “trojan” can do is to
capture your keystrokes when you log onto your online banking and
periodically send this information back to the criminal via email.
Access to your Internet Banking service is gained and funds are
transferred to the bank accounts controlled by the criminal.
Some “trojans” are designed to give other people remote
access to your computer. By having remote access to your computer
these people can do all kinds of things, ranging from the annoying
to the illegal. For example, the “trojan” can hijack
your browser and force you to go to porn websites or flood you with
popup ads whenever you go online. But, perhaps the most pernicious
thing that these people can do is to use your computer – without
you knowing it – to distribute pornography.
The best thing to do with any unsolicited email - particularly
from people or companies you don’t know – that finds
its way into your inbox is to ignore it and delete it.
One of the problems with “trojans” and “malware”
files and program is that they are not always detected by Anti-Virus
software. However, there are ways to protect your computer. For
products that are designed to detect “trojans” and “malware”
on your computer and remove them. (See the Software Section).
Unlike anti-virus software, you can run more than one copy of this
type of software on your computer. I personally check my computer
using NoAdware and Spybot and to try and stop “trojans”
and “malware” from getting onto my computer in the first
place, I use Spyware Blaster and Spyware Guard.
As with your Anti-Virus software, it is important that you keep
this software uptodate. You should check for any updates every time
that you log onto the Internet
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COOKIES AND SPYWARE.
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What are cookies and spyware? How are they different from each
other? How are they different from “trojans” and “malware”.
When you go to a website for the first time you might get a pop-up
message asking whether you will accept a “cookie” from
that website. Cookies are just a bit of text on your computer are
widely used and are legitimate tools used by many websites to track
visitors. Cookies contains a small amount of information that identify
you to particular websites. These cookies are used, for example,
to personalize information or to help with purchasing stuff in an
online store.
Cookies cannot be used to "steal" information about you
or your computer system. Plus, the only websites that can retrieve
the information stored in a cookie are the websites that wrote the
information in that particular cookie. This ensures your privacy
by stopping anyone other than the site you are visiting from being
able to read any cookies left by that site.
However, if you are concerned about cookies you can delete any
that are on your computer and/or you can set your browser to screen
incoming cookies and reject any that you don’t want. How you
do this will depend on which browser you are using. The two most
popular browsers are: Microsoft Internet Explorer and Netscape
In Netscape, go to the Edit/Preferences/Privacy and Security menu.
Here you can change how cookies are to be dealt with
Microsoft has changed its approach to cookies over the last 3 versions
of their browser:
In IE 6.0, go to the Tools/Internet Options/Privacy menu. This menu
allows you to select how much discrimination the browser will have
when accepting cookies, based on two factors -- (1) the source of
the cookie, and (2) whether the source has a "privacy policy."
There are also features for the advanced user, if you'd like to
have a greater control over cookies. For more information on this
you can go here: http://support.microsoft.com/default.aspx?scid=kb;EN-US;q283185
In IE 5.0, go to the Tools/Internet Options/Security menu. Here,
you can choose the security level for 4 different browsing conditions:
Internet Sites, Local Sites, "Trusted" Sites, and Restricted
Sites. If you select "Internet," and click on Custom Level,
you'll get a dialog box where you can accept all, warn before accepting,
or reject all cookies.
In IE 4.0, go to the View/Internet Options/Advanced menu. There
you can accept all, warn before accepting, or reject all.
There are different types of spyware, your basic "harmless"
spyware, placed on your computer in the form of cookies,
unfortunately, some sites use “spyware”
or “tracking software” to track your internet browsing
habits and then use this data to customise the advertisements you
see on websites, etc. Sometimes these advertisements will simply
“popup” as you browse the internet regardless of which
website you are on. This type of software is considered as an invasion
of privacy.
How does “spyware”
get onto your computer?
Whilst other Spyware can invade your computer for more sinister
purposes, most of the time it is surreptitiously installed on your
computer by being included in “free” shareware program.
Once it is installed on your computer it works in the background
tracking and monitoring which websites that you go to for marketing
purposes and generate pop-up advertisements using that information.
These pop-up ads are quite annoying and some can be very embarrassing.
It can also hijack your browser or computer, add shortcuts you don't
want and even install Trojans onto your system. Leaving your computer
vulnerable to hackers, who can use your computer, as a distrubution
system for spam or do other destructive things on your computer.
If this wasn’t bad enough, one other
thing that “spyware” can do is a “drive-by download”.
A “drive-by download” is a program that is downloaded
and installed on your computer without your knowledge, especially
if your connection is via a dialup modem using a phone line. (Broadband
users are not totally immune from these scams as they scammers are
getting more sophisticated technology to get round the fact there
is no phone line connected! You may find you receive a bill from
your ISP for excessive use!)
The worst type of “drive-by download” are the dialers
which dial out to a premium rate number. Since these dialers can
call a premium rate number without you knowing about it you could
suddenly find that you’ve racked up a very large phone bill.
You may think that you are connected to the Internet via your usual
internet connection but in fact the dialer software has taken over
and you are being connected to the Internet via a premium rate number
and racking up massive bills. What’s more, some of these dialers
will automatically take you to pornography websites
The same products that are designed to detect
“trojans” and “malware” on your computer
and remove them can also be used to detect and remove “spyware”:
As with your Anti-Virus software, it is important
that you keep this software uptodate. You should check for any updates
every time that you log onto the Internet
Use a firewall to protect against such intrusions. |
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