rohit ppt - Copy

8/7/2019 rohit ppt - Copy

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BY:ROHIT SHARMA

B.TECH(IT)C2801A24

REG.NO.10805075


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Copyright 2005 The Sterlyn Group

The process of ensuring business systems andinformation assets are protected, secure and available.


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VIRUS

A virus is a program or piece of code that is loadedonto your computer without your knowledge andruns against your wishes.


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Boot viruses

Program viruses

Multipartite viruses

Stealth viruses

Polymorphic viruses

Macro viruses


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On downloadingfiles from theInternet.

On opening an e-mail attachment.

On copying

programs or filesfrom any otherinfected computer.


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The computer runs slowerthan usual.

The computer crashes, andthen it restarts every fewminutes.

Applications on the computerdo not work correctly. Disks or disk drives are

inaccessible. You see unusual error

messages.

An antivirus program cannotbe installed on the computer,or the antivirus program willnot run.

New icons appear on thedesktop that you did not put.


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These viruses spreadvia computernetworks. It is self

replicating computerprogram.


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A Trojan virus is onethat opens yourcomputer up to

malicious usersallowing them toread your files.


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Virus cannot replicate themselves but worm and trojancan do that.

A virus cannot be spread without a human action suchas running an infected file or program but worm and

trojan have the capabilities to spread themselvesautomatically from computer to computer throughnetwork connetion.

A virus do not consume system memory but wormconsumes too much system memory and networkbandwidth because of their copying nature.

Trojans are used by malicious users to access yourcomputer information but viruses and worms cant doso, they simply infect your computer.


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Spam

Unsolicited e-mail or the action ofbroadcasting unsolicited advertisingmessages via e-mail

Takes up time and storage space on theircomputer

Report it to ISP. Check your ISP help areas to

find out how to report spam


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Phishing is defined as activity where someone tries totrick a computer user into revealing confidentialinformation

The site looks to be authentic, but the URL is incorrectand no digital certificate is used Phishers are primarily focused upon obtaining bank,

credit card, and personal information to sell on theopen market

Phishers have become more savvy in their approach,now moving into membership programs anddonations

How bad is the problem? The New York Office ofCyber Security sent an internal email asking employeesto enter their passwords into a password checker.

17% of their 10,000 complied with the request


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Digital signatures are used to identify

phishing signatures in emails URL database is checked to verify if

the URL is categorized as a phishingsite

Content is analyzed to determine if itmatches the phishing definitions


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Adware are created by

advertising companies

Comes in the form of popups,

unexplained advertisingprograms on your computer

desktop like Casino Night.

Advertising companies hope to

generate money from

customers who receive the

popups or unexplainedprograms on their computers.

Also a LEGAL program!


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Spyware must be considered a severe securitythreat for campus users. Many spywareprograms monitor web traffic, store copies of

your passwords, and harvest email addressesand personal information for marketingpurposes. The shadowy nature of spywarecompanies means that this information couldeasily end up in the hands of criminal hackersor identity theft scam artists.


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Block incoming spyware, adware, and maliciousapplications

Block against virus infections from web downloadsand web based email

Block internet access based upon categories

Prevent infected systems from sending informationback to the spyware server

Control different protocols such as streamingmedia, IM, and P2P


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Scan HTTP/HTTPS/FTP traffic forvirus, worm, trojans, and othermalware before it reaches thedesktop

Checks page content andattachments

Allow/disallow certain types of

attachments by file format or textstring

Scan downloaded files in assembledstate

Updates on a regular basis


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Copyright 2005 The Sterlyn Group

Use a Firewall software or appliance. Especially for

always on connections like DSL and Cable Modem. If

configured properly, it will eliminate many of the bad

guys.

File-sharing and instant messaging applications are not

only security threats, some also contain firewall evading

technology. If your home computer contains critical

business information you may want to reconsider letting thekids roam the Internet freely

At the office, restrict access to only business critical

applications.


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ACTION PLAN:

1)Write down the error or alert message

inform your tech support teamquarantine the machine

2) Look up the message in an

authoritative anti-virus site (demo)diagnose the problemtake recommended remedial action


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ACTION PLAN:

1)Write down the error or alert message

inform your tech support teamquarantine the machine

2) Look up the message in an

authoritative anti-virus site (demo)diagnose the problemtake recommended remedial action


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SECURITY TIPS

1. Use protection software "anti-virus software" and keep it up to date.2. Don't open unknown, unscanned or unexpected email attachements.

3. Use hard-to-guess passwords.

4. Protect your computer from Internet intruders -- use "firewalls".

5. Don't share access to your computers with strangers. Learn about file

sharing risks.

Stay Safe Online www.staysafeonline.info/sectips.adpsponsored by the National Cyber Security

Alliance


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SECURITY TIPS

6. Disconnect from the Internet when not in use.7. Back up your computer data.

8. Regularly download security protection update "patches".

9. Check your security on a regular basis. Understand the risks anduse measures to minimize your exposure.

10. Share security tips with family members , co-workers and friends.

Stay Safe Online www.staysafeonline.info/sectips.adpsponsored by the National Cyber Security

Alliance


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Simplest and most common way to ensure thatonly those that have permission can enter yourcomputer or certain parts of your computernetwork

Virtually ineffective if people do not protect their

passwords. The golden rules, or policies for passwords are:

Make passwords as meaningless as possible

Change passwords regularly

Never divulge passwords to anyoneUA Password Standard

http://security.arizona.edu/drafts.html


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Password Construction

On systems that support them, passwords should contain at leasteight characters

One of each of the following characters:

- Uppercase letters ( A-Z )- Lowercase letters ( a-z )- Numbers ( 0-9 )- Punctuation marks ( !@#$%^&*()_+=- )


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Treat your password likeyou treat your toothbrush.Never give it to anyoneelse to use, and change itevery few months.

A final word:

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