computer virues

8/17/2019 Computer Virues

1/19

M.M.G.

Assign By

Miss Tasneem

M. Adeel Ansari

M. Faaiz Malik


2/19

M.M.G.

Protection / Prevention

We protect your world


3/19

IntroductionSourcehttp://www.cknow.com/vtutor/NumberofViruses.html

The first known computer virus was written in the mid-19!s

"#perts estimate 1 in $ computers is infected with some t%pe

of virus.

&ver !! new viruses are discovered each month

'% number( there are well over 103000 known computer

viruses )Source: Sophos*

&nl% a small percenta+e of this total number account for

those Viruses found in the wild( however. ,ost e#ist onl% incollections.

ith the increasin+ use of the nternet( it has become easier for

virus to spread

http://www.cknow.com/vtutor/NumberofViruses.htmlhttp://www.cknow.com/vtutor/NumberofViruses.htmlhttp://www.cknow.com/vtutor/NumberofViruses.html


4/19

W!at is "irus

computer pro+ram that can spread across computers and

Networks b% makin+ copies of itself( usuall% without the

user0s knowled+e

t is not data

ou can onl% catch a virus b% runnin+ a pro+ram( Anti#"irus

2reate dama+e to the computer s%stem 3infected3

4ides in other computer code without permission and does

nast% or undesirable thin+s


5/19

$ypes o% "irus

Worm2omputer orms arereproducin+ pro+rams

that run independentl%

and travel across

Network connections

Trojan pro+ram which

appears to be

Valuable but has an

une#pected

conse5uence

&'a(pl

e

&'a(pl

e


6/19


7/19


8/19

)on%icker*s Wor(I+F&)$&,W-, MAP


9/19

Conficker GeographyIM I Mana2ed ecurity


10/19

"irus ource

The four most common virus infections come from: Toda% almost 67 of all viruses are spread

throu+h the internet )source: 8Net*

ile ; virus t%pe that infects e#istin+ files on the computer)


11/19

"volution of Viruses

% i r s t w

a v e

0 0 4

e c o n d W

a v e

5 0 0

0

0 4

$ ! i r d

W a v e

6 0

0 0

4

% o u r t ! w

a v e

1 0 3 0

0 0 4

1969 - 199!s 199!s to 199 1999 to @!!1 5001 to today


12/19

'asic Virus defense ,on7t open %iles t!at you are not e'pectin2

,an% viruses automaticall% send files without the e-mail

account owner0s knowled+e.

sk the sender to confirm une#pected files.

uspect (essa2es t!at appear (ore t!an

once in your In8o'

ou ma% receive the same e-mail from a virusrepeatedl%.


13/19

'asic Virus defense earn %ile e'tensions

our computer will displa% both an icon and a file

e#tension for files %ou receive. &pen onl% file e#tensions

%ou know are safe.

$!e %ollowin2 %ile types s!ould never 8e

opened9

."A"

.B .'T

.V'S

.2&,


14/19

Brotect / Brevent

t is advisable to back up all %our important files( puttin+ them in

an e#ternal drive or on the drive of %our s%stem. ou shouldbe careful to scan %our 2 drive and rive periodicall% to avoid

an% threat of virus

1. Cnowled+e

@. Broper confi+urations

>. Dun onl% necessar% pro+rams=. nti-virus software

'est wa% to protect %ourself is to prepare %our computer a+ainst

viruses in advance. &ne wa% to protect %ou computer is to use

updated anti-virus pro+ram.


15/19

Prevent In%ection

Deceivin+ an infected disk)media*.

ownloadin+ an infected e#ecutable file from a network or the

nternet.

2op%in+ a document file that is infected with a macro virus.

Viruses are spread in several ways. The most commonare:

Treat all disks as thou+h the% are infected.nstall an antivirus pro+ram and keep its virus definitions)database of virus information* up to date.

Dun %our antivirus pro+ram re+ularl%.

To avoid viruses, you should:


16/19

$op $en Anti#"irus

: 1 : 5 : 3 : ; :

'itefender 'itefender Caspersk%Caspersk% ebrootebroot E TE T "set Nod>@"set Nod>@

: < : 6 : = : > : 10

BaretoFo+icBaretoFo+ic VE VE VipreVipre -Secure-Secure Trend,icroTrend,icro


17/19

There are lots of viruses in the world and new viruses arecomin+ up ever% da%. There are new anti-virus pro+ramsand techni5ues developed too. t is +ood to be aware ofviruses and other malware and it is cheaper to protect %ou

environment from them rather then bein+ sorr%. Theremi+ht be a virus in %our computer if it starts actin+differentl%. There is no reason to panic if the computervirus is found

t is +ood to be a little suspicious of malware when %ousurf in the nternet and download files. Some files that

look interestin+ mi+ht hide a malware Virus0s mission is to hop from pro+ram to other and this

can happen via GS' disks( nternet TB sites(news+roups and via email attachments. Viruses aremostl% written for B2 and indows environments

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18/19

Feed8ack?@uestion

,eveloped y9,. deel nsari,. aai? ,alik

e are waitin+ for %our feedback +ive us %our feedback.

e appreciate %our feedback and use it to help create

better services. Gnfortunatel% we cannot provide a

personal response to %our comments.

Proect Advisor9,rs. Tasneem r?u

www.co(pvirus.co.cc

(ail us: [email protected]


19/19

M.M.G.

www.co(pvirus.co.cc

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