Internet and Antivirus

Presented by Nazran Dawn

Agenda

Internet History of internet Common uses of the Internet Internet Threats Antivirus Antivirus Design Principles Top Antivirus in 2007 5 reasons to use Antivirus Conclusion

Internet

The Internet is a worldwide, publicly accessible network of interconnected computer networks that transmit data by packet switching using the standard Internet Protocol (IP).

Internet (cont)

It is a "network of networks" that consists of millions of smaller domestic, academic, business, and government networks, which together carry various information and services, such as electronic mail, online chat, file transfer, and the interlinked Web pages and other documents of the World Wide Web.

http://en.wikipedia.org/wiki/Internet

History of internet

In February 1958, United States to create the Advanced Research Projects Agency, known as ARPA.

U.S. Air Force lead a project to implement a network that recommended packet switching

The first TCP/IP-wide area network was operational by January 1, 1983,

History of internet (cont)

United States' National Science Foundation (NSF) constructed a university network backbone that would later become the NSFNet.

The network gained a public face in the 1990s

By 1996 the word "Internet" was coming into common daily usage, often refer to the World Wide Web

Common uses of the Internet

E-mail Sending electronic text messages

between parties in a way analogous to mailing letters

The World Wide Web A way of accessing information over the

medium of the Internet Remote access

Allows computer users to connect to other computers and information stores easily

Internet uses (cont)

Collaboration Internet 'chat' Instant messaging Tele conference

File sharing A computer file can be e-mailed to

colleagues and friends as an attachment

Internet uses (cont)

Streaming media Video chat rooms, video conferencing ,

web cams

Voice telephony (VoIP) Internet phone Exp. Vonage, Skype

Internet Threats

Virus Spyware Web bug (HTML-enabled email) Phishing Trojan horse Spam

Virus

A program or piece of code that is loaded onto user’s computer without user’s knowledge and runs against user’s wishes. Viruses can also replicate themselves.

Spyware

Spyware is computer software that is installed surreptitiously on a personal computer to intercept or take partial control over the user's interaction with the computer, without the user's informed permission.

Example : CoolWebSearch , CoolWebSearch ,

Zango

Web bug

A web bug is any one of a number of techniques used to track who is reading a web page or e-mail, when, and from what computer. Web bugs are used by e-mail marketers, spammers and phishers.

Phishing

In computing, phishing is a criminal activity to acquire sensitive information, such as usernames, passwords and credit card details, by masked as a trustworthy entity in an electronic communication.

Trojan horse

Trojan horse is a program that installs malicious software while under the appearance of doing something else. Examples include various implementations of weather alerting programs, computer clock setting software, and peer-to-peer file sharing utilities

Spam

Spamming is the abuse of electronic messaging systems to indiscriminately send unwelcome bulk messages. The most widely recognized form of spam is e-mail spam. This term is applied to similar abuses in other media.

Antivirus

What is Antivirus software? Antivirus software is a computer program

that detects, prevents, and takes action to disarm or remove malicious software programs, such as viruses and worms. You can help protect your computer against viruses by using antivirus software

http://www.microsoft.com/protect/computer/basics/antivirus.mspx

Antivirus (cont)

We can help protect your computer against viruses by using antivirus software

PrivatenetworkInternetInternet

Security perimeter

Packet-filtering router

Why we need Antivirus?

If your computer is not protected when you connect to the internet, your computer could be effected by virus, spy ware. Modern antivirus is a software package of

firewall, antivirus, anti-spyware. Some antivirus also have internet explorer

toolbar include popup blocker, anti spam, anti fishing and email filtering.

History of Antivirus The first publicly known neutralization of a wild PC

virus was performed by European Bernt Fix (also Bernd) in early 1987. Fix neutralized an infection of the Vienna virus. First edition of Polish antivirus software mks_vir started in 1987.. Fall 1988 also saw antivirus software Dr. Solomon's Anti-Virus Toolkit released by Briton Alan Solomon. By December 1990 the market had matured to the point of nineteen separate antivirus products being on sale including Norton AntiVirus and ViruScan from McAfee

http://en.wikipedia.org/wiki/Anti-virus_software#History

Antivirus Design Principles

Attempt to repair the file by removing the virus itself from the file

Quarantine the file (such that the file remains inaccessible to other programs and its virus can no longer spread)

Delete the infected file

Antivirus Design Principles (cont)

Top Antivirus in 2007

Norton Antivirus 2007 Mcafee VirusScan Plus Trend Micro Internet Security AVG Anti-Virus

Norton Antivirus 2007

Key features Detects and removes viruses and spyware Prevents virus-infected emails from

spreading Includes protection updates and new

product features as available throughout the renewable service period

Price: $39.99 USD

Mcafee VirusScan Plus

Key features Offers 3 in 1 PC Protection from viruses,

hackers and spyware so you can surf the Web safely.

Prevents multi-pronged attacks by integrating anti-virus, firewall, and anti-spyware technologies.

Price: 29.99 USD

Trend Micro Internet Security

Key features Antivirus Security Spyware Protection Personal Firewall Fraud Defense Price: $49.95

AVG Anti-Virus

Key features A tool for scanning your hard drive and e-

mail Real-time shield to prevent infections AVG Virus Vault for safe handling of infected

files. Price: free to use

5 reasons to use Antivirus

Regular antivirus scanning To help keep you safe from viruses, worms,

and Trojans, Antivirus automatically scans the files and folders on your computer, including e-mail attachments as you open them.

5 reasons to use Antivirus (cont)

Continuous firewall monitoring Firewalls monitor two way traffic. This

means that both inbound and outbound traffic is controlled. The firewall is also updated continually to help protect you

5 reasons to use Antivirus (cont)

Enhanced protection from spyware Today's Antivirus have antispyware

technology helps protect your computer from spyware programs that secretly monitor your activities or pop-ups that negatively impact your computer's security and performance.

5 reasons to use Antivirus (cont)

Easy file backup and restore With Antivirus you can make copies of

important files and documents and store them on a CD, DVD, or an external hard drive in case of an emergency.

5 reasons to use Antivirus (cont)

Continuously updated Antivirus could updates itself automatically

to help ensure that your virus, firewall, and spyware protection is always up to date and ready to help protect you from the latest threats.

Conclusion

Basic rules of using any security system: Know what you want to protect

Use the simplest protection that protects it

Train your users Don’t trust everything

Attacks may come from everywhere Stay alert

References

http://en.wikipedia.org/wiki/Anti-virus_software

http://www.microsoft.com/protect/computer/basics/antivirus.mspx

http://antivirus-software.6starreviews.com/