How
they work
Antivirus software scans your stored
files for virus signature files that uniquely identify a stored program
as a virus. Each file on your computer is compared with these known
files to identify any known virus. Thus the antivirus software
needs to be continuously updated for newer virus information. The
detected virus can then be deleted or quarantined for controlling
further damage.
Top Antivirus
Softwares
Why
install antivirus software ?
Depending on your setting: home, small
enterprise, medium scale business or large corporate network you may
be worried about the following:
-
A virus invading your computer
-
Unauthorized access
-
Securing personal information over
internet
-
Securing your emails
-
Spam and junk emails
-
Computer performance
-
Sensitive information on your computer
Features of antivirus
programs
The antivirus software normally includes
some or all of the following features:
-
Virus scan and quarantine
- Anti-spyware
- Anti-phishing
- Anti-dialer
- Anti-adware
- Anti-spam
- Email protection integration.
- Firewall
- File backup for damaged files.
|
-
Trojan and worm detection and removal.
- Archive scans.
- Scheduled scans.
- Resident memory protection.
- Protection against activeX, web
scripts, etc.
- Unknown virus detection.
- Online managed services like
virus updates and backup.
|
Antivirus softwares come bundled with features
that take care of some or all of these issues. In addition there are
specific virus targeted tools like code red virus remover, nimda removal
tool, mail protection softwares, and programs that fix the damage done
by a virus to the RAM or disc. There are also softwares targeting specific
products like Outlook or yahoo messenger.
Online
virus scanners
Many Antivirus software companies offer
an online virus detection service that scans your computer files for
any known virus. You may then go ahead and use/purchase software for
virus deletion. Only certain kind of files can be scanned online.