A worm is a piece of malicious code that is meant to enter computers through security exploits so that it can either gather information or even delete certain files. When it comes to network security this is the one piece of malware every security expert fears. The reason is if the computer is infected and the antivirus program or firewall did not stop it then it can easily copy its self and send those copies over the network to infect other computer and mess them up.
How Do I Prevent Worms?
There are many ways to prevent worms many of them are obvious, but some might not be so obvious. The easiest way to prevent worms is to keep an updated antivirus program running on your computer and to change the settings so that it can be at its top specs. The options will vary from the antivirus product to another however I can show you what do for avast. You can check that out by going to the url at the bottom of this post.
The other way to prevent worms from getting into your computer is to keep a firewall that is setup with necessary protection by blocking incoming and outbound connection. This way you can stop the worm from trying to get into the network its self. Unfortunately, this will most likely not prevent it, but it can still help with the general protection of your computer. You should also have your network firewall running to prevent the worm from spreading to other users on the same network as you.
Keep your operating system up to date this is kind of a no brain er. Many people surprisingly don't have their computers set to update windows automatically and this is a major issue because Microsoft if releasing updates to improve the safety of your computer and you are not downloading them. So you should be downloading all of the important updates AND the optional updates because they can also be important but are not necessary.
Keep your web programs up to date. Now you will be wondering what is a web program and how do i update it. I say a web program is anything that your browsers uses to display or use web pages. These programs can be Java Microsoft Silver light, Flash Player, Basically anything that you use to display images in your browser. The reason is these programs have been known to have security exploits and are a common source of infection.
How Do I Know If I Have A Worm?
Your computer will be running slower and some files could be disappearing, The easiest way to check if you have a worm is to go into your computer's task manage and see if there are any unknown process running. If you are unsure what the process is do not end it look it up first generally the more common ones will be answered. But you will find a post saying that is a worm. Unfortunately, many programmers will make the process hidden so that you can not find it in the task manager. Leaving the only other way to find it is to scan for it using a variety of scanners that can be found at the end of this post.
Summary
A worm is a piece of malicious code that is meant to take and delete information from your computer and anyone else that is using your network. The only way to protect yourself is use optimal security settings with your firewall and antivirus. Make sure to have your network firewall updated as well so that you are protecting your friends from the threat to.
Scanners
http://www.surfright.nl/en
http://www.malwarebytes.org/
http://www.superantispyware.com/
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