Internet and Antivirus

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Internet and Antivirus

• Presented by
• Nazran Dawn

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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

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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).

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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

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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,

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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

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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

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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

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Internet uses (cont)

• Streaming media
• Video chat rooms, video conferencing , web cams
• Voice telephony (VoIP)
• Internet phone Exp. Vonage, Skype

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Internet Threats

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

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Virus

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

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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

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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.

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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.

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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

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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.

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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/a
  ntivirus.mspx

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Antivirus (cont)

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

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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.

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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_softwareH
  istory

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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

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Antivirus Design Principles (cont)
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Top Antivirus in 2007

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

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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

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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

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Trend Micro Internet Security

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

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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

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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.

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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

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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.

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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.

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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.

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Conclusion

• Basic rules of using any security system
• Know what you want to protect
• Use the simplest protection that protects it
• Train your users
• Dont trust everything
• Attacks may come from everywhere
• Stay alert

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References

• http//en.wikipedia.org/wiki/Anti-virus_software
• http//www.microsoft.com/protect/computer/basics/a
  ntivirus.mspx
• http//antivirus-software.6starreviews.com/