Famous
viruses: Melissa - 1999, Chernobyl virus
- 1998, Loveletter, Nimda, CodeRed, SirCam, Bugbear, Sasser,
Bagle, Mydoom, Lovsan, Klez.
New threats:
I-Worm, Avron, Korean, Sober worm.
Signs
of infection: A virus
program constantly keeps a tab on your stored files, what
you download, your emails and passwords, and passes on this
information to outside parties. It may cause damage to your
files, delete them permanently, stop normal booting of your
computer, or cause it to crash at regular intervals.
The
following are some of the signs for the presence of a virus
on your computer:
- Sluggish, slow computer.
- Any unusual activity not caused by you.
- Problems opening emails, overloading.
- Data files missing or corrupted.
- Abnormal functioning of programs.
- Freezing and interruptions.
- Spam originating from your computer.
How
much damage: Apart from damaging your
computer system, and your data and information, viruses
and worms have disabled computer systems of private and
government facilities, and are now a major source of risk
to world economies everywhere. According to the UK based
mi2g Intelligence Unit the estimated damage for the year
2004 was around US $ 200 billion spread over 600
million Windows running computers.
Viruses
are only one of the reasons that your computer
malperforms. Hardware and software conflicts and
bugs are still a major source of software malfunctions.
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VIRUS/ANTIVIRUS
NEWS
12/29/2005
NOD32
has taken the lead from the security flaws faced by major
antivirus companies like Symantec. Their software was ranked
the best by Colby-Sawyer College for its anticipative virus
protection.
Read
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How
they spread:
Once installed on a computer, the virus uses floppies, other
such removable devices, emails, and the Internet to copy itself
on to other computers and removable devices. Some or all of
these routes are used:
- Email attachments
- Popular Internet downloads
- Using other softwares: Trojans
- Web site access with an insecure connection.
Popular
targets - Windows:
The most popular target of attackers is, needless to
say, Windows and its products. From the OS to word processors,
every window product is the most preferred and favorite target.
All the more need for a good antivirus software download.
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