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Anti-virus software is used to identify and remove viruses in computers and many other types of harmful computer software. The first antivirus software was designed exclusively to combat computer viruses but now a days modern antivirus software can protect computer systems against a wide range of Trojans, malware, worms, phishing attacks, and rootkits.
There are many methods which antivirus software can be used to identify malware; it depends on the software we use.
Signature based detection
Malicious activity detection
Heuristic-based detection
Signature based detection is the most common method used by antivirus software to identify malware. Normally to identify malware and viruses antivirus software compares the content of the file to a dictionary of virus signatures. As viruses can embed themselves in existing files the entire file is searched in pieces not just as a whole.
Malicious activity detection is the other method used to identify malware. In this method antivirus software monitors the system for suspicious program behavior. If any suspicious behavior is detected the suspect program may be further investigated using signature based detection, this type of malicious activity detection can be used to identify unknown viruses.
Heuristic-based detection is the method used by more advanced antivirus software, Heuristics method can be used to identify unknown viruses. This process has two approaches file analysis and file emulation. In file analysis approach if a program has instructions to format the D drive, anti virus software might further investigate the file. File analysis is the process of searching a suspect file for virus like instructions. File emulation approach involves executing a program in a virtual environment and logging what actions the program performs
Based on the actions logged, the antivirus software can determine if the program is malicious or not and carry out the appropriate actions.
Virus removal Tools : It is a software used for removing specific viruses from infected computers. Virus removal tools are designed to remove specific viruses, usually more effectively than normal anti virus software. Examples of these tools include McAfee stinger and Microsoft malicious software removal tool may of these tools are available for free download. These tools can sometimes do a better job of removing a specific virus than conventional antivirus software. |
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| ANTI-VIRUS Download links |
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Panda Antivirus Pro 2009 is the easiest-to-use and most intuitive protection for your computer. Installing Panda Antivirus Pro 2009 helps our system from viruses, spyware, rootkits, hackers, online fraud and identity theft.
Panda antivirus pro 2009 Download Link
F-Secure Antivirus protects your computer from viruses and other online threats from the Internet and mobile networks.
F-secure antivirus Download Link
Symantec Antivirus has lot of protection features, including infected file quarantine, online virus protection updates, and an automatic scheduler. Symantec Antivirus is designed to start running as soon as your computer's operating system starts. It runs in the background, checking all vulnerable files for possible infection by mischievous, sometimes malevolent, programs called viruses and worms. Symantec Antivirus does this by looking for the identifying signatures of these worms and viruses and comparing them to known viruses for which it has files. When it detects an infected file, it notifies you and manages the infection according to your preferences.
Symantec Antivirus Download Link
GDATA Antivirus 2009 (formerly Antivirus Kit Improved protection against viruses, worms, rootkits, spyware, diallers, trojans, backdoors and much more. Virus blocker for instant messaging (MSN, Yahoo, AOL, etc.) is also there.
GDATA Antivirus 2009 Download Link
The Shield Pro 2009™ provides essential virus protection from viruses, hackers, and privacy threats. Powerful yet easy to use, protect yourself, your family, and your PC online with The Shield Pro 2009™. The Shield Pro 2009™ gives you 1 year of protection and PCSecurityShield gives you all the free technical support you need to successfully protect yourself. The Shield Pro now comes with Easy Installer, to make download and installation simpler than ever before.
The Shield Pro 2009 Antivirus Download Link
Dr.Web Anti-virus scanner This is a FREE anti-virus and anti-spyware utility based on Dr.Web Anti-virus scanner, which will help you quickly scan and cure, if necessary, a computer operated by MS Windows 95OSR2/ 98/Me/NT 4.0/2000/XP/2003/Vista without installation of the Dr.Web Anti-virus.
Dr.Web Antivirus Download Link
eScan Antivirus is an effective virus protection software designed and developed to protect your computers from threats like Viruses, Spyware, Adware, Malware, Keyloggers and Hackers.
eScan Antivirus Download Link
The Shield Pro 2009™ provides essential virus protection from viruses, hackers, and privacy threats. When a virus breaks out, The Shield Pro 2009™ will provide a patch within 2-3 hours and a fix for the virus within 5 hours.
The Shield Pro 2009 Antivirus Download Link
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