A Simple Presentation about Computer Security and Anti Viruses keeping in mind healthcare professionals as the target audience. Contains Definitions, Educational Content , Purchase and Free Options and a Simple tutorial on How to use Avast Free Edition

1. Plus91 Technologies Pvt. Ltd.
Adding Value to Healthcare
Antiviruses & Computer Security 101

2. What is a Computer Virus?
• A computer program that can replicate itself
and spread from one computer to another.
• It might corrupt or delete data on your
computer
• It might use your email program to spread
itself to other computer
• It may even erase
everything on your hard disk.

3. Viruses are evil…
• Viruses can take control of Your Computers if
not guarded against
• Such controlled machines are called zombies.
• They then try to spread to other computers,
creating a network called “botnet”
• Over 8 Lakh bot infected computers in India
• Botnets are used by cybercriminals to send
spam, steal information and launch 'denial of
service' attacks, in which all the zombies
access one website at once, forcing it offline.
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4. Some terms you may have heard
• Probing - Scanning the ports of the computer
to find vulnerabilities
• Trojans - Software which hides inside known
programs and so gets installed/run by the user
• Spyware - Software which collects information
without the users knowledge
• Phishing – Pretending to be a useful /popular
digital source so as to trick users into
providing sensitive information
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5. Common ways viruses enter your PC?
• Infected USB flash drives
• Trojans in Freely available software from
untrusted sites
• Clicking on links in suspicious emails
• Clicking on links at untrusted sites especially
those catering to lotto, adult content, free
downloads for songs, movies, games and TV
shows
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6. Indicators that your PC might be infected
• The PC runs more slowly than normal
• The PC stops responding or freezes often
• The PC crashes and restarts every few minutes
• The PC restarts on its own and then fails to run
normally
• Applications on your PC don't work correctly
• Disks or disk drives are inaccessible
• You can't print correctly
• You see unusual error messages
• You see distorted menus and dialog boxes
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7. The effect of Viruses on you?
• Damage your files leading to Loss of
Personal Data
• Slows down your PC by eating into the RAM
and Processor Time
• Uses up internet bandwidth leading to
frustration when surfing and checking email
• Trojans end up taking control of your
PC which may then be used for
hacking, terrorist emails, spamming
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8. The effect of Viruses on your Practice
• Damaged Files lead to loss of Practice &
Patient Data
• Slower Access to Hospital/Clinic Software
• Spam Sending will ensure that even useful
mails send to other doctors and patients will
be delivered in their spam folders
• Increased cost on IT infrastructure in your
practice as regular maintenance of PCs will be
required
• Random PC behavior will frustrate you and
make it impossible for you to work 8

9. Simple Prevention Tips
• Use an Antivirus
• Scan all external devices before use
• Avoid downloading files with extensions like .exe,
.msi, .bat unless you trust the source
• Schedule Anti virus scans to run every week
• Update anti virus definitions regularly
• Don’t click on links in emails from unknown sources
• Use a Firewall
• Be careful about what personal information you give
out online.
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10. Your friend – The Antivirus
• An Antivirus is a computer program which
prevents against, detects and removes viruses
• It helps to protect computers from both
common and rare computer viruses
• Also protect against
– Worms
– Spyware
– Trojans
– Corrupt Adware

11. Which one to use
• There are numerous anti viruses in the market
• Paid Options as well as Free Options
• Qualifying Factors besides Price
– Updates
– Strength of Protection
– Resource Usage
– Ease of Use
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12. Our Suggestions
Free Options
1. Avast: http://www.avast.com/index
2. Free AVG: http://free.avg.com/in-en/homepage
3. Avira: www.avira.com/en/avira-free-antivirus
4. PC Tools Free: http://www.pctools.com/free-antivirus/index/d/2
5. Windows Security Essentials : http://windows.microsoft.com/mse
Paid Options
1. Bit Defender: http://www.bitdefender.in
2. Quick Heal: http://www.quickheal.com/
3. Kaspersky: http://www.kaspersky.com/
4. Norton: http://in.norton.com/
5. Eset Nod32: http://www.esetindia.com/
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13. TODO: How to use an AntiVirus
In the next few slides
• Hands on Using a good Free Anti-Virus Avast
• Manage regular scans
• Download upgrades when prompted
to be able to fight even the latest
viruses
• Follow instructions when deleting corrupt
files
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14. TODO: How to download the Anti-virus
• Go to URL: http://www.avast.com/free-antivirus-
download
• Click on Download button under the free
option
• Follow the steps and complete the
download on the CNET site
• Go to: http://www.avast.com/registration-free-
antivirus.php and register yourself, a key will be
emailed to you
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15. TODO: How to install the Anti-virus
• Once the download is complete click on
setup file
• Install the Anti-virus by following the steps,
ensure that all the default options are
checked
• Select the “Silent/Gaming Mode” so that the
Anti-virus works only in the background
• Ensure the Real-Time Shields
are on
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16. TODO: How to use the Anti-virus
• Summary gives an overview of the Status of what shields are
on and if threats are present
• Scan Computer allows you to select and scan:
• Quick Scan – Just Core Windows and Document of the PC
• Full Scan – Each every file in the PC or drive
• Removable Media – Attached Hard Disk, Pen drive, etc
• Select Folder – Single Folder in the PC
• Real time shields protect the PC on the go, when downloading
files, sending emails etc – Unless you’re an expert or need
one to be turned off to run a trusted software leave them on!
• Maintenance allows you to ensure the software is up to date
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17. TODO: Tips for the Anti-virus
• Allow the Anti-virus to update its repository
regularly by connecting to the internet
• Schedule regular scans: Click -Scan
Now then under full system scan
click-Settings ,go to “Schedule”
• Keep a check on Validity Period
and re-register if expired
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