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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/