Difference between computer virus and computer worm


















Because of this, worms can propagate themselves and spread very quickly — not only locally, but have the potential to disrupt systems worldwide. In , the WannaCry worm attack caused damage worth hundreds of millions to billions of dollars. Also known as WannaCry ransomware, this attack is a hybrid of ransomware and a worm — specifically cryptoworm.

Ransomware infections often occur through phishing campaigns. WannaCry leveraged EternalBlue, a Windows SMB protocol exploit, to gain access, install a backdoor, and download software — infecting the systems. In short, WannaCry self-propagated, self-replicated, and quickly traversed entire networks, causing worldwide damage. Varonis DatAdvantage monitors and analyzes file and email activity — as well as user behavior. Discover how Varonis can help defend against worms and viruses — see Varonis in action with a demo today.

Skip navigation. Skip to content. Change Language. Related Articles. Table of Contents. Improve Article. Save Article. Like Article. Last Updated : 07 Oct, Worms : Worms are similar to a virus but it does not modify the program. It replicates itself more and more to cause slow down the computer system. Worms can be controlled by remote. The main objective of worms is to eat the system resources.

Virus : A virus is a malicious executable code attached to another executable file that can be harmless or can modify or delete data. When the computer program runs attached with a virus it performs some action such as deleting a file from the computer system.

That means malicious ads can show up even on legitimate, trustworthy sites. An ad blocker will prevent ads from loading , so you never even see them. And an ad blocker will also help prevent drive-by downloads , whereby infected ads get into your system without even being clicked on.

And extra, built-in defenses against infected email attachments, malicious downloads, and unsafe links means you always stay safe against the most common virus and worm vectors. Unsecured Wi-Fi networks are common in public places like coffee shops, airports, and malls. These networks are just too easy for hackers to crack. To connect to them safely, use a VPN , or virtual private network. With a VPN, no one can spy on you, so you can surf, bank, and shop securely, even in public. Recall that hackers can exploit security holes to push worms and other malware into your system.

You can avoid that easily by applying security updates to your operating system and programs in time, every time. Employing smart digital habits like those described above will go a long way toward keeping you safe online. Get complete protection against viruses, worms, ransomware, and other malicious code with a comprehensive antivirus solution. Download it today to secure your computer and get peace of mind. Privacy Report vulnerability Contact security License agreements Modern Slavery Statement Cookies Accessibility Statement Do not sell my info All third party trademarks are the property of their respective owners.

We use cookies and similar technologies to recognize your repeat visits and preferences, to measure the effectiveness of campaigns, and improve our websites. For settings and more information about cookies, view our Cookie Policy. Security Tips. AVG News. See all Security articles. IP Address. Social Media. Privacy Tips. See all Privacy articles. Performance Tips. See all Performance articles. Virus: What's the Difference? Worm vs. Link copied. What is the main difference between a worm and a virus?

This article contains:. What is Spyware?



0コメント

  • 1000 / 1000