Do I have a computer virus?
In this brief article Devon from http://www.noconetworks.com will discuss how to determine if your computer is infected and what to do about it if it is.
First thing I would like to say is this is not a 100% guaranteed way to determine the state of your computer or your network. After years troubleshooting computer networks these are just a few simple basic steps that I have put together to help narrow troubleshoot computer problems.
They should be the first question you ask yourself if you’re having problems with your computer. If your computer is running slow or just not responding the way you think it should a few basic steps can help you assure the it’s not a virus.It could be many things are going on with your computer especially that’s more than 2 1/2 years old. There are three basic things the need to look at when diagnosing you can computer has a problem. Hard drive, motherboard, memory, software these are the four main areas of a computer in each one of these has its own symptoms if it’s a problem with your computer. For this session will get a star with diagnosing virus because this is the number one issue that most users have.
Today they are many types of malicious software out and they’re not all classified as viruses as but for the sake of this conversation we are classifying all malicious software as a virus. Malicious software is anything they cause your computer for perform poorly. Another problem they can disguise itself as a virus is the beginning stages of a hard drive failure. So I’m going to discuss hard drive failure briefly. First call and symptoms that you have either a virus for a hard drive failure. If you find your computer is responding slowly and has issues coming out of sleep or hibernate the mode these are key indicator But your computer can have a virus or is in the beginning stages of a hard drive failure. The first thing you want to do, to determine if you have a virus is enter Task Manager utility.To enter task manager utility hold down ctrl alt, and del at the same time.After you enter task manager go to the performance tab.
Look at your memory and CPU usage if either one or both of these are above 60% you need to investigate further. It is normal for your CPU to spike but it should never stay consistently high. When I say consistently high I mean anything over 50%. Memory is a little more subjects to what’s happening with your computer. If you have two GB or less of memory 70% usage might not be bad 100% usage would indicate a problem. Side note: if you have two games are less of memory you should probably upgrade your memory anyway. With today’s software you should be running a minimum of 4 GB of memory.
So you’ve checked your memory and you check your CPU usage is now what?
So lets put the pieces together to determine what the next course of action is to take. If your computer’s running slow and having difficulty coming out of hibernate, but you don’t see excessive CPU or memory usage you may want to investigate your disk further. This does not mean that you do not have a virus and you may want to follow the steps below for scanning your computer.
If your computers running slowly and you notice excessive CPU usage or all of your memory is consumed meaning it’s between 90 and 100%. There’s a high chance that you have a virus or malicious software running on your computer. So what now?
There are a number of antivirus products that you can choose from I personally tend to go for product called malwarebytes. I’ve uses product over 150 times and it tends to produce great results without affecting the performance of your computer.
Simply go to malwarebytes.org and download their free software. Typically I will run a fast scan for about 15 minutes. If it takes something up I will cancel the scan and quarantine all the items that found.Then I will set the next and to a full systems scan and let it run all the way through. After the scans complete quarantine all the items, reboot the computer and run a full scan again. Repeat this process until your scan comes back with no items found.
Please note that the free version of malwarebytes does not auto protect your computer. If you choose to continue using the free version please scan your computer on regular interval to make sure you do not get RE infected.
If you like this article you may enjoy my article on how to not get the computer virus.