Warning! JavaScript is turned off or disabled! Some features on this website will not work.
« »
»
Advertisements

Did You Know Antivirus Software Cannot Detect and Remove New Viruses?

2017-09-17T23:09:55  +
Did You Know Antivirus Software Cannot Detect and Remove New Viruses?

Do you know that antivirus software cannot detect and remove new computer viruses until the makers of the antivirus software get a hold of the new viruses and generate signatures for them? A virus signature is used by an antivirus software to identify a virus or a family of viruses. It is similar to scientists finding a cure for a biological virus. Some persons believe that because they have an antivirus software installed on their computers they are fully protected from viruses.

Please continue reading below.

Advertisements

If a new computer virus, unknown to your anti-virus software, starts spreading on the internet and you are unlucky enough to infect your computer with this new virus, your antivirus software will not be able to identify and protect you against it. This new virus can infect millions of computers around the world and cause billions of dollars of damages before it is detected by any of the antivirus software makers. So, it is important for the antivirus software makers to monitor the internet closely and frequently to detect any new threats as quickly as possible.

After a virus is found, a signature is created and tested, which is then used to identify the virus or any family of that virus. The antivirus software makers will then make the new virus signature available for download for your antivirus software via the internet. Once your antivirus software downloads this new signature it will be able to detect and remove that new virus. This is why it is important that your antivirus software updates itself frequently via the internet.

The virus detection method that I have mentioned above is called the “Dictionary Approach” and is the most popular and effective way of detecting computer viruses. There is another method called “Heuristic Analysis” which they say can detect new computer viruses, but is seldom used because it generates a lot of false alarms or false positives. Using this method, your anti-virus software may detect your legitimate programs like Microsoft Excel, Word or even your web browser as a virus and may create havoc on your computer.

Having an antivirus software installed on your computer, doesn’t mean that you should browse the internet recklessly. You should still exercise caution when downloading files from the internet and opening email attachments. Ensure that you are downloading files from trusted sources, browsing trusted websites and opening only expected email attachments.

Antivirus software are still very important because they protect you from the thousands of viruses and malicious programs that have already been discovered. But, do not think that you are 100% safe with one installed on your computer.

Please continue reading below.

Advertisements

Please share with us what you know or ask a question about this article by leaving a comment below. Also, check the comment section below for additional information, if there is any.

Remember to forward suspicious, malicious, or phishing email messages to us at the following email address: info@onlinethreatalerts.com

Also, report scams, untrustworthy, or fraudulent websites to us. Tell us why you consider the websites untrustworthy or fraudulent.

If you want to quickly find answers to your questions, use our search engine.

Comments, Questions and Reviews ✍
(Total: 2)

To help protect your privacy, please do not post or remove, your full name, telephone number, email address, username, password, account number, credit card information, home address or other sensitive information in or from your comments, questions, or reviews.

↓ Show More of the 2 Comments ↓

Write Your Comment, Question or Review

Write your comment, question or review in the box below to share what you know or to get answers. Please revisit after an hour or more to view reponses or answers to you questions.

Your comment, question or review will be posted as an anonymous user because you are not signed in. Sign-in.


The comments or reviews below do not necessarily reflect the views of Online Threat Alerts.

  • Posted: 2017-12-16T17:00:42 by an anonymous user from or near: Arvika, Värmland, Sweden

    Your post about antivirus is not entirely correct. Herustic and behavioral analysis of zero-day treaths is indeed a key element in ALL antivirus vendors today, though not all score top points in AV tests. One who does is Bitdefender, who btw on your own site have an advertisement banner with the following content when clicking on it:

    "Zero-day or unknown malware routinely eludes traditional AV/antimalware defenses. These cyber-attacks disrupt businesses, costing them time and money or compromising sensitive data.

    By their very nature, AV signatures cannot stop unknown threats. New and established security vendors claim their ‘next-generation’ solutions use signature-less detection based on revolutionary technologies like machine learning to catch zero-days. Despite the alluring stories and buzzwords, the efficiency of these solutions is anecdotal and rarely backed by trustworthy independent sources.

    Unlike alternative solutions, Bitdefender consistently proves the efficiency of its signature-less technologies in the most important independent tests, blocking 99% of zero-day threats in the AV-Comparatives heuristic/behavioral trials. Besides achieving the best detection rates against zero-day threats, Bitdefender also routinely scores the lowest number of false positives.

    Bitdefender’s new anti-exploit protection is designed to tackle evasive exploits, to help reduce the APT attack surface and minimize the risk of being targeted. The technology works by zooming in on potentially vulnerable software and running a structural analysis during key execution points. If an anomaly is detected, admins can choose to automatically block the execution or to simply be notified. With this additional feature, advanced attacks are stopped before the payload actually reaches the infrastructure, thus greatly increasing the costs of attacks for targeted threat actors"

    With such antivirus vendor a second on-demand AV like Malewarebytes a very good firewall browser ad-ons as Bitdefender TrafficLight and Virus Total online scan tool, you are very well protected to surf the web.

    delete


  • Posted: 2013-04-06T21:18:48 by an anonymous user from or near: Kingston, Jamaica

    You are right. I do browse the internet recklessly sometimes because I know I have a good antivirus. I didn't know that they couldn't detect new viruses without creating a signature. Thanks for the information.

    delete